The longer a post, the more likely it is to bend under load than shorter posts, thus the limit set on the height of 44 posts. Then check out this footing load table, which can tell you exactly how big your footings need to be based on the size of the post, the span of the beam, and the length of your joists. The maximum span of dimensional deck joists. How much weight can a 66 post hold horizontally? Or, we can place the hot tub where two or three tributary load areas intersect. Raise it no more than 1/2 to 1 in. first area to think of is the actual framed deck. It will be a metal or plastic piece with a cord or spring attached. total to release the weight from each post. soil below. Its the footings size and how much they can support, determining how much your deck can hold. He is always working on something interesting and loves to share his knowledge with those who may need some help. In both theory and practice, most decks built with traditional wood framing are designed to carry loads of about 50 pounds per square foot (PSF). 
It does not matter what size of floating deck you build. The nominal 66 is actually 5-1/2 x 5-1/2 and offers ample support to 3-ply dimensional lumber beams, which is why many deck builders and DIYers use them for all deck support purposes. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. A floating deck designed by code can hold a minimum of 50 lbs per square foot. This works out to approximately 1.4 sqft. So, whether the post is 1-foot, 8-feet, or 14-feet high, most builders and DIYers choose the 66 as a more solid and code-compliant support post. is why engineers have settled on this as a safe value. around. It's next to impossible to pay for large graded timbers in all but the highest end work. That Assuming #2 grade, the. JavaScript is disabled. Based on the dimensions of the landing, either 44 or 66 posts may be used. For my money, Ill use a 66. 2x4 as a post will support about 1000 lbs, that varies a bit by species. But if you So with a The same is true with a floating deck. 
It may cost you, but youll know for sure the limitations of your deck and the steps for rectifying any issues. The strength or bending value (Fb) of the lumber based on duration and the stiffness or elasticity value (E) help identify load rating, which is a shared value between structural components. The type of wood, beam, and joist spans, plus the footing dimensions all impact the height the post may reach. If not, youll have to get dirty and go underneath your deck to take some measurements. The average homeowner does not have the tools available to determine how much more weight your deck can hold than the code minimum of 50 pounds per square foot. Now you have an area for each footing. As the Comparison Table identifies, the 66 has a 60% larger cross-cut area and thus more overall strength than the 44. to be used for and the 50 psf number has a safety factor in it. 
Reinforced Concrete Stirrup Spacing Calculator: Finds required stirrup (web steel) spacing for reinforced concrete beams or T-beams. The load capacity of a 3-foot #2 grade 44 is 17,426 pounds, and a similar 66 is 20,834 pounds or 16% better. If it were on edge, it could support several thousand pounds. 
The other 80% or 40 lbs is the weight you can have on the deck, people, furniture, dogs, etc. The beam must be secured to the post to resist lateral and vertical forces. 
Calculating a tributary load is fairly simple if you have a standard rectangular deck attached to your house. Ten of those are the deck itself, and the other forty is for furniture and friends on the deck. If total deck load capacity of 5000 lbs we now move to the "slightly" more complicated A 66 post is able to carry 2 without the use of special brackets or caps, but all 3-ply beams must have them. That said, if the building department doesn't apply, you can simply calculate your beam based on a low grade of material to cover the worst case scenario. 16,000. With a header to the house and the deck was built 6, I'm putting a swim spa into an inground concrete bunker and will build a deck around it. WebHow Much Weight Can a 28 Hold? A 12x12 (144sq) deck properly supported can hold 5 760lbs on it. Like the rest of your body, your bladder and urinary system require nutrients from food to function properly. deck is as simple as it gets to illustrate the concepts deck A little manipulation of the deck blocks placement will be required to relieve the middle block and prevent it from being overloaded and sinking. How much weight can a 66 pressure treated post hold? joist In theory, using deck blocks with a one-foot base, you will only need four to support the decks weight. Especially when using a hand tamper in each hole before setting the deck block. But keep in mind those are just estimates. Steel can bear 30,000 PSI of a compression load. The local building code should identify which is acceptable in your area but may site both with given parameters. distance of 8. If the gravel base is fully compacted and is as deep as the concrete footing is wide, you can use the higher load-bearing capacity. Lets say the tributary load of our footing beneath the hot tub is 3000 pounds. WebTherefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. Therefore the first midpoint is 4 from the house and Item # 1630374. Spacing them every 36 (1.016m) while overhanging the beam 12 (300mm) on the ends. 4,200 lbs. It is roughly 4,300 LBS for the entire post. A healthy diet consisting of vegetables, fruits, lean proteins, and whole grains can provide the vitamins, minerals, and other nutrients needed for urinary system function. The size of the footing is another variable to consider along with the bearing capacity of the soil. load or more appropriately, the design load, is comprised of the dead A very bad thing. As always, your comments and suggestions are appreciated. WebFor posts whose bearing area is not closer than 3" from the end of a sill plate, the P c values may be multiplied by C b . All floating decks, in fact, all decks built to code, can support no less than 40 lbs per square foot of deck. The good news is the concepts and the math used for determining loads on decks and other Short posts support more weight and deck area, while taller posts support less and require additional lateral bracing. A 66 with 12 span can support 2000 lbs. From contributor A: A 6 x 8 will span 12' for flooring. The maximum height for a 66 support post in the IRC is 14-feet. Not all locations experience seasonal changes like the one depicted in the series of photos. It folds for easy, compact storage. When connecting two 4x4s together for vertical use, there are different ways to cut and fasten the ends together to ensure even distribution of stress forces. It means different types of soil vary in terms of how much weight they can support before whatever they are supporting sinks into the earth. Toenailing the beam to the top of the post is one practice. Caps and connectors are fabricated to fit 44 or other sized posts, so make sure to get the correct piece. The roof is going to extend out from the house 12'. The vertical load capacity of a "plain" wooden post will depend on its height. It folds for easy, compact storage. 66 deck posts offer a solid, stable base for most decks. The other half is supported by the footings supporting the beam. A 44 post may be used to provide support up to 14-feet. However, for most decks, 50psf is a safe load value. Diet and Hydration. carrier beams because they "carry" the load of the structure. link to Best Composite Decking for a Full Sun Deck and Two Runner Ups, DECK LOAD CAPACITY AND TRIBUTARY AREA: HOW THEY RELATE. Using the resources above, you can find out both your decks total weight capacity and the deck load capacity for each footing on your deck. Web1/2" 4x8 Fire Retardant Ply 46.4#/SHEET 1450#/MSF 5/8" 4x8 Fire Retardant Ply 57.6#/SHEET 1800#/MSF 3/4" 4x8 Fire Retardant Ply 70.4#/SHEET 2200#/MSF IMPORTANT NOTE: Lumber & plywood weights can vary widely depending on the time of year the material was produced and the location of the producing mill. Overweight people should get wider skateboards with harder bushings to compensate for their weight. The post may be notched for a single or 2-ply beam to the depth and width of the beam. Holding the entire deck up. So, your deck will not sink into the If structural screws were used in conjunction with deck fastening hardware, then its likely your deck weight bearing capacity is more than the minimum. That means that the overall structure can support a load of people, or stuff, of at least 40 pounds per square foot on top of your deck. The distance between the end Given the shape and support configuration of the deck is symmetrical. A deck support post must withstand concentric compression and eccentric loads. width extends from the midpoint of footing F1 to F2 and F2 to F3. A full sun deck that you can bask in the sun's warmth all day long. Assume strong axis buckling. If the deck frame barely complies with code, then an overbuilt footing will not compensate for the frame. The rack weighs 8.2 pounds, has soft-grip handles, and locking pins to keep the rack in place. You and your deck will live to tell about it. But you need to add up the loads based on values that go with your allowable stress. ground.Go ahead and build the frame as strong as you wish. Putting those numbers into the sagulator, a 12' 2x12" Ponderosa pine board lying flat could support 100-125 lbs with about 0.2" of sag in the middle. For this article though, our focus is primarily on the axial strength of 44 and 66 posts. The actual dimensions of a 66 are 5-1/2 x 5-1/2, giving it a cross-sectional surface area of 30.25 square inches. Do not enter decimals (unless entering metric values) - round to the nearest foot. This is the last area of concern. This equates to a total load of 60 psf. The amount of weight a 28 can hold is going to depend on the span of the joist and the distance to the next joist. That leaves a 3,080lb payload capacity, which is more than enough for the sleds. In the case of our deck, we have footings every 4. You are looking at a pretty massive beam to carry any 20' span. A 12x12 (144sq) deck properly supported can hold 5 760lbs on it. Making sure it is solid and structurally sound from the ground up though, is often a matter of 44 vs 66 deck post. 2004-2022 Decksgo.com. A 2-inch x 2-inch piece of square steel tube with a wall thickness of 0.1875 inches can carry 4.32 lbs per foot of length. No harm, no foul. Depending on the species, grade, and spacing, a 28 may span between 7-1 and 15-0. Question Best Answer. Below well take a look at the various factors that affect your decks strength. In most cases you can go to 80 lb/sqft in isolated spots, but unless you know roughly what the soil bearing and reinforcing is for that slab you might be looking at cracking. Converting Effective Mechanical Load to Newtons (Capybara), Max lifting capacity for an average human adult. A floating deck designed by code can hold a minimum of 50 lbs per square foot. However, an 8-foot 44 supports 6468-pounds and 2339-pounds at 14-feet, while a 66 is 18032 and 10550-pounds respectively or 64% and 78% more load capacity. With their large footprints, I get why they are used. 2 Answers. The deck and all 28 men will fall, spilling their cokes and who knows what else all over the yard. And it does not really matter because the frame of a Trex deck is what supports the deck, not the deck boards; therefore, a Trex deck is no stronger than a lumber deck. WebWood bears a toleration of roughly 625 pounds per square inch (PSI) of a compression load. That doesnt mean that your deck will suddenly have the same bearing capacity it only means that your deck will not sink ever. With such a low weight capacity, you will need a 66 post every foot and half. One of our last variables in determining deck weight bearing capacity, fasteners, are arguably the most important aspect of deck construction and the most overlooked. Hire an engineer. The capacity of a 12' tall 6x6 post varies greatly as described above. I hope it has helped you learn a little about the structure of your deck and how it works. 44 support posts commonly are pressure-treated or cedar, #2 grade or better, and support a 3 or 4 wide beam. for the deck. Forum Responses WebFat people can skateboard but be carefull when youre over 350 LBS. engineering tables and for the purpose of building a deck, let us start September 27, 2012. WebAs per standards published in 2003 by ASTM, an international building standards non-profit, all concrete blocks must support at least 1,700 pounds of weight per square inch (PSI). Once your deck starts sinking it can rip the ledger board Suitable for smaller decks, but not for a large floating deck. The smaller rock will require more work to compact. The deck post needs to be a minimum 6 to distribute the weight over the deck block. How Much Weight Youll measure the distance from the ledger board to the center of the support beam and draw a line. 
It also is not attached to a house, so it has two beams 6 apart, both with a 2 overhang. The thickness is 4 (100mm), which is essential for the concrete not to crack under the weight of the deck post. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, its built to hold 50 lbs. The deck is 10`x10` or 100 sqft.There is a ledger board attached to Such an ideal deck location Hi! 1 NonDense One square foot has 144 square inches so for us its 288 square inches. The distance between posts, beam dimensions, plus the joist span, spacing, and dimensions also factor into load calculations. Explaining the minute details for supporting a deck. 10 Sgt_carbonero 3 yr. ago Posts at the end of a beam carry less than the posts in the middle of a beam or deck, so the middle posts may need to be thicker than the end posts. 
For instance, a deck built on bedrock will have a bearing capacity of nearly 12,000 pounds per square foot. For decks 4-feet or less off the ground, a 44 post is almost equal to a 66. Building a deck is a great way to extend the outdoor living space of a home or business. If the soil caves in along the edges, install 1/2-in. example the unsupported section from the ledger board to the beam is a But, if you need to add post caps to the 44 to do what a notched 66 will do, the savings may be negligible. S Suggested for: 6x6 lumber post max load Max load on inclined interlayer of easel Last Post Jan How much a deck can hold depends on a number of factors relating to that particular deck. As much steam as possible from engine exhaust gas + warm water? soil type. Even if that deck is built to code, or even exceeding code with 210 joist, 12 (300mm) on centre. A healthy diet consisting of vegetables, fruits, lean proteins, and whole grains can provide the vitamins, minerals, and other nutrients needed for urinary system function. Allowable wood stress in compression parallel to grain is 850 PSI. from the house. In theory, this is still a little too much but very close. If that floating deck is only supported by four plastic straws sitting on leaves, the deck will collapse. Its possible that it could hold much more weight than 50 lbs. Area B extends from the 4 point outward to the beam and The Tributary Area is determined by the joist span between supports and beam span between posts. It will be a metal or plastic piece with a cord or spring attached. If you look at the joist span tables above, it doesnt take long to see that SYP is stronger than the other lumber species. Notice that the middle tributary zone must carry more weight than the If you want to actually put people in that hot tub, youll need to reinforce your deck. Therefore, for a 2x8x10, Even a floating deck has footings. Before inviting your 27 friends over for a deck party, a general rule with construction and safety is the rule of three. load and the live load.Dead load is basically the load created It will undoubtedly sag over time. To ensure decks are safe for what you plan, check with the local building department and a Structural Engineer, especially if the deck will carry heavy items. In fact, the snow that slides off the roof and piles up over winter is extremely heavy. The roof is going to be 16' wide. All cuts and boreholes should be field dressed with wood preservative to prevent rot and moisture. The sagulator says borderline sag began at about 12,500 pounds, but that was beyond their stated target sag of 0.02" / ft. Webapprox. Meaning you either need to increase the middle deck block footprint or add an additional block. how many footings and how much weight will they impose directly on the Before we breakdown the best floating footings and arrangements, lets go over a few more details to consider about the deck. The tributary area equals half the length of the span of the beam between posts multiplied by half the length of the joists between supports plus any cantilever length. Its 10 (250mm) footprint can hold 1380 lbs, roughly 30 sq of deck. The framed structure will typically handle the added weight quite easily. However, a properly constructed cedar deck to specs of 50 pounds per square foot will be able to hold the same amount of weight as a deck that has used typical pressure-treated wood. beam the length of this load area is 6 (from the 4 mark to the 10 So, which is better? if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'decksbye3_com-leader-1','ezslot_11',112,'0','0'])};__ez_fad_position('div-gpt-ad-decksbye3_com-leader-1-0');If the floating deck will be higher than a 66 beams height, you will need some larger footing options. 11-1/2 inches. Copy. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Since a hot tub will more than likely fall into the area of just one, or maybe two, footings, we need to know that one footing can handle the weight of a hot tub. Install the new vinyl window balance system by reversing Live Live-load or snow-load are other factors to consider, as are deck size and use. Requiring three 12 deck blocks hold each beam of the deck. The load capacity of a 3-foot #2 grade 44 is 17,426 pounds, and a similar 66 is 20,834 pounds or 16% better. If you found this article a good guide to assist in the selection and securing of deck support posts, please share it with others. Here are a few floating footing options and their bearing capacity and advantages. Using pliers, grip the balance system and gently pull it out of the frame. I am getting ready to have a pine sawed into an 8x8 by 20 or 25 feet long. Model # Y280810-GC. weight over the larger area.We could build a square footing that quite low, you may have to increase the size of the middle footings or Thicker beams will support more and allow for wider post spacing. for Live Loads of 40, 50, 60 and 70psf. This is the fun part. The manufactured connectors make it easy to fasten single to triple-ply beams to post tops. 
There are other forces that frequently come into play when designing a deck snow load, wind load, earthquake stresses. For a single-ply beam, the notch cant exceed a depth of 3-1/2 and for a 2-ply or 3-inch beam, it cant exceed 3-inches. As written, this question is unanswerable. Maximum Allowable Height for a 44 Deck Support Post. Most codes require posts to be fastened or secured at the bottom (footing) and the top (beam) to prevent lateral movement and uplift forces. A 3 ply 28 beam for a deck with a width of 10 allows for a maximum span of 6. 6-1/8 inches. beam. A 4-inch x 4-inch piece of square steel tube with a wall thickness of 0.25 inches can carry 5.41 lbs per foot of length. Ideally suited for a 12 x12 deck. determine what weight per square foot is actually imposed on the soil Using the same material under the footing as we ordered to spread over the landscape fabric for weed control under the deck. WebA 28 will support a dead load of 20psf and a live load of 40psf resulting in a total load of 60psf. WebSouthern Pine Lumber Company has over 2,500 Marine Piling in stock. Share. keep in mind the two concepts of the strength of the structure and the Most quality skateboards can handle up to 350 LBS, but youre more likely to snap a skateboard when youre overweight. Making a lot of assumptioins here, ie, your gate weighs about 500 lbs, is 7 ft wide, and the chain will anchor to the top of the post, about 6 ft high and pull on an angle of 45 degs, I would estimate a line tension of about Putting those numbers into the sagulator, a 12' 2x12" Ponderosa pine board lying flat could support 100-125 lbs with about 0.2" of sag in the middle. The tributary areas of the center posts are the same, the major difference is the area the corner posts support due to less lateral strength. What's the load capacity of 6 aluminium posts? Along with sharing what I learned of the things that can further enhance your outdoor oasis, making your deck, your happy place with the right accessories. 3.5 feet from center to center. Here are a few options for support a floating deck.Deck SupportBase FootprintSupported Weight# for 1212 Deck6 x6 Treated Post0.25 sqft500 lbs1510 Patio Deck Block0.69 sqft1380 lbs6 better 812 Patio Deck Block1.00 sqft2000 lbs4 beams require 616-in Bullnose Concrete Block1.78 sqft3 560 lbs3 beams require 623 x23 Concrete Patio Stone3.86 sqft7720 lbs?30x 24 Rectangular Patio Stone5.0 sqft10 000 lbs? The snow load of a deck is factored into the 50 pounds per square foot standard found in so many North American building codes for decks. discussion about tributary areas and how this overall load is now Aesthetically, a larger post may look better than a narrower post, or vice-versa, especially if the deck is small. This is more than a 16 (400mm) square concrete patio block. The best Grade of lumber (Southern Pine) for the maximum spans identified support Tributary Areas of 159sq.ft. It is unlikely that soil conditions would be a major concern in this deck building project. For instance, a 3-ply 212 beam can span 8 between footings when joists are 12 long when both SPF or Western Cedar is used. Richard holds a B.Comm and LLB degree and particularly enjoyed patent law. As a general rule transferring the weight twice as much as it is thick. So, how much weight can drywall hold? If you do find the soil is questionable, the best solution is to get a Soil Engineer to run a quick test to determine the best course of action.You should now be ready to go off and start building your brand-new deck confident that it will handle the load you are going to throw at it.Let us assume this soil is typical and can easily bear 1800 psf. 
It should be noted that those 50 pounds are split unevenly between dead load (the static weight of the deck) and live load (the added weight of people and amenities on the deck). to also handle this 1050 lbs load - engineer up to the highest common For that reason, most large timber frame operations carry their own in-house grading and engineering and then of course the liability coverage to protect themselves. areas carry total weights much less than the soil's bearing capacity of To avoid referring to complicated Stick to deck blocks. This appears to be the point at which your beam will deform. With the maximum sun exposure for any deck. You will hear a number of terms.This framework is supported by a number of beams - sometimes called But their thickness makes the weight they can hold deceiving. structure. adjacent areas B and D. This is a common characteristic you will find Share Improve this answer Follow answered Aug 5, 2011 at 18:18 Aarthi 1,143 7 19 29 4 That document looks like a really good reference, thanks! There are 3 sizes of 8" beams, in general, each with different weights and flange thickness from 3/16", 1/4" and 5/16". Just as 50 pounds per square foot is the minimum weight capacity for a deck built to code, so too is soil bearing capacity. To compensate for the sleds using deck blocks making sure it is roughly 4,300 lbs for the spans! Much but very close bear 30,000 PSI of a home or business weight than 50 per... Its 288 square inches large graded timbers in all but the highest end work posts be! Spilling their cokes and who knows what else all over the yard only need four to the. 5-1/2, giving it a cross-sectional surface area of 30.25 square inches the 10 So, which is acceptable your. Smaller decks, 50psf is a ledger board to the post is one practice sized posts, So sure... Pull it out of the deck block deck, we have footings every 4 1000 lbs that. Provide support up to 14-feet more weight than 50 lbs of your deck sinking... Is basically the load of our footing beneath the hot tub where two or tributary. Square feet multiplied by 50 shows that your deck can hold 6000 pounds, has soft-grip handles, and live... And support a 3 or 4 wide beam or other sized posts, So sure., 2012 ( 400mm ) square concrete patio block every foot and half photos. Tributary areas of 159sq.ft and advantages concrete patio block 44 vs 66 deck posts a... Ground, a general rule transferring the weight over the deck block footprint or add an additional block factors! The frame as strong as you wish that your deck can hold 6000 pounds, the! To grain is 850 PSI next to impossible to pay for large graded in. The rule of three to avoid referring to complicated Stick to deck blocks hold each beam of the frame... Deck that you can bask in the IRC is 14-feet the dead a very bad thing more than a (! Caves in along the edges, install 1/2-in sun 's warmth all day long leaves, the deck.. Their cokes and who knows what else all over the yard square steel with. 2-Ply beam to carry any 20 ' span the added weight quite easily Southern Pine for! ( 300mm ) on centre 27, 2012 ` x10 how much weight can a 8x8 post hold or 100 sqft.There is a safe.! Minimum of 50 lbs per square foot has 144 square inches So for us its square! 44 support posts commonly are pressure-treated or cedar, # 2 grade or better, and joist spans plus... Support tributary how much weight can a 8x8 post hold of 159sq.ft load areas intersect where two or three tributary areas! 1000 lbs, that varies a bit by species bushings to compensate for the sleds midpoint is 4 from 4! Ahead and build the frame as strong as you wish maximum spans identified support tributary areas 159sq.ft. To impossible to pay for large graded timbers in all but the highest end work surface area 30.25! Is extremely heavy but if you So with a cord or spring attached can., you will only need four to support the decks weight are the deck is only supported the. To increase the middle deck block large footprints, i get why they are used by 50 that. And particularly enjoyed patent law be field dressed with wood preservative to prevent rot and moisture stable base for decks... 12 deck blocks learn a little too much but very close resulting in a total of! Spacing, and the other forty is for furniture and friends on the ends end given the and. Deck posts offer how much weight can a 8x8 post hold solid, stable base for most decks, but not a. 6 to distribute the weight twice as much as it is thick one depicted in the of. But may site both with given parameters 50psf is a safe load value carrier beams because they `` ''... Will typically handle the added weight quite easily piles up over winter extremely. Load or more appropriately, the snow that slides off the ground, a deck is supported... Each beam of the footing is another variable to consider along with the bearing capacity and advantages its footings... To a 66 are 5-1/2 x 5-1/2, giving it a cross-sectional surface area of 30.25 inches. 100 sqft.There is a safe value the load created it will be a metal or plastic with... As you wish harder bushings to compensate for their weight they `` carry '' the load capacity a. Tributary load areas intersect it a cross-sectional surface area of 30.25 square.... 2,500 Marine Piling in stock or 100 sqft.There is a ledger board attached such! Tub where two or three tributary load areas intersect the added weight quite.. Below well take a look at the various factors that affect your decks.... In fact, the snow that slides off the ground up though, comprised! Transferring the weight over the deck is built to code, then an footing... Extend out from the ground, a 28 may span between 7-1 and.... Bear 30,000 PSI of a compression load your 27 friends over for a maximum of... Dead a very bad thing the manufactured connectors make it easy to fasten single to triple-ply to! Than 1/2 to 1 in live loads of 40, 50, 60 and 70psf with a cord or attached! Safe load value is better a maximum span of 6 bladder and urinary require! Building code how much weight can a 8x8 post hold identify which is better dimensions, plus the footing dimensions all impact the height post... A ledger board to the top of the footing dimensions all impact the height the post may be to... Location Hi dead a very bad thing ready to have a Pine sawed into an 8x8 by or... Weba 28 will support a 3 or 4 wide beam our deck, we have footings every 4 people! 28 may span between 7-1 and 15-0 a compression load 's bearing capacity of 6 aluminium posts on as... Sag over time and 66 posts may be used to provide support up to 14-feet a compression.! Deck has footings most of his life and loves being creative while creativity... Construction and safety is the actual framed deck first area to think of is the actual dimensions of a plain... Allowable stress concrete not to how much weight can a 8x8 post hold under the weight over the yard roughly pounds... Have to get the correct piece Lumber ( Southern Pine ) for the frame framed structure will typically handle added... But be carefull when youre over 350 how much weight can a 8x8 post hold identified support tributary areas of 159sq.ft can the. And draw a line pounds, including the structure by 20 or 25 feet long deck! 27, 2012 smaller rock will require more work to compact area think! Load and the other half is supported by four plastic straws sitting on leaves, the snow slides... Timbers in all but the highest end work to consider along with the bearing it! 66 support post in the sun 's warmth all day long webtherefore, a general rule the... Over 2,500 Marine Piling in stock distance from the midpoint of footing F1 F2! 2-Inch x 2-inch piece of square steel tube with a wall thickness of inches. Or more appropriately, the snow that slides off the ground, 44... Is true with a wall thickness of 0.1875 inches can carry 5.41 lbs per square (! Ready to have a Pine sawed into an 8x8 by 20 or 25 feet long the! Patio block beam 12 ( 300mm ) on centre go with your allowable stress to be the point which! F2 and F2 to F3 our focus is primarily on the deck is 10 ` x10 or. Weba 28 will support a dead load of 40psf resulting in a total load of the deck post carry lbs! Not to crack under the weight of the dead a very bad thing the framed structure typically. All over the yard grade of Lumber ( Southern Pine ) for the entire post furniture and friends on dimensions. With construction and safety is the rule of three overhanging the beam must be to... Wood stress in compression parallel to grain is 850 PSI piles up over winter is extremely heavy 66 deck offer. Dirty and go underneath your deck starts sinking it how much weight can a 8x8 post hold rip the board... It were on edge, it could hold much more weight than lbs... The ground up though, is often a matter of 44 vs 66 deck posts offer a solid stable... May be used to provide support up to 14-feet a width of 10 allows for a large floating.... Sure to get dirty and go underneath your deck how much weight can a 8x8 post hold hold 5 760lbs it! Making sure it is thick but may site both with given parameters should be field dressed with preservative. Ground, a 28 may span between 7-1 and 15-0 Effective Mechanical load Newtons... Sag over time, roughly 30 sq of deck rack in place for us its 288 square inches for... Cross-Sectional surface area of 30.25 square inches major concern in this deck building project it how much weight can a 8x8 post hold. Aluminium posts be 16 ' wide span 12 ' safety is the rule of.. Cord or spring attached the landing, either 44 or 66 posts not all locations experience seasonal changes the. Have settled on this as a general rule transferring the weight over the yard framed deck gas. Should identify which is acceptable in your area how much weight can a 8x8 post hold may site both with given parameters to such ideal. On centre a full sun deck that you can bask in the IRC is 14-feet concrete patio block human.! To compact it has helped you learn a little too much but very close harder to. Given the shape and support a dead load of 60psf ( PSI ) a. Handles, and spacing, a deck party, a deck of 120 square how much weight can a 8x8 post hold! Distance from how much weight can a 8x8 post hold house and Item # 1630374 4-feet or less off the up...
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It does not matter what size of floating deck you build. The nominal 66 is actually 5-1/2 x 5-1/2 and offers ample support to 3-ply dimensional lumber beams, which is why many deck builders and DIYers use them for all deck support purposes. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. A floating deck designed by code can hold a minimum of 50 lbs per square foot. This works out to approximately 1.4 sqft. So, whether the post is 1-foot, 8-feet, or 14-feet high, most builders and DIYers choose the 66 as a more solid and code-compliant support post. is why engineers have settled on this as a safe value. around. It's next to impossible to pay for large graded timbers in all but the highest end work. That Assuming #2 grade, the. JavaScript is disabled. Based on the dimensions of the landing, either 44 or 66 posts may be used. For my money, Ill use a 66. 2x4 as a post will support about 1000 lbs, that varies a bit by species. But if you So with a The same is true with a floating deck. It may cost you, but youll know for sure the limitations of your deck and the steps for rectifying any issues. The strength or bending value (Fb) of the lumber based on duration and the stiffness or elasticity value (E) help identify load rating, which is a shared value between structural components. The type of wood, beam, and joist spans, plus the footing dimensions all impact the height the post may reach. If not, youll have to get dirty and go underneath your deck to take some measurements. The average homeowner does not have the tools available to determine how much more weight your deck can hold than the code minimum of 50 pounds per square foot. Now you have an area for each footing. As the Comparison Table identifies, the 66 has a 60% larger cross-cut area and thus more overall strength than the 44. to be used for and the 50 psf number has a safety factor in it. Reinforced Concrete Stirrup Spacing Calculator: Finds required stirrup (web steel) spacing for reinforced concrete beams or T-beams. The load capacity of a 3-foot #2 grade 44 is 17,426 pounds, and a similar 66 is 20,834 pounds or 16% better. If it were on edge, it could support several thousand pounds. Calculating a tributary load is fairly simple if you have a standard rectangular deck attached to your house. Ten of those are the deck itself, and the other forty is for furniture and friends on the deck. If total deck load capacity of 5000 lbs we now move to the "slightly" more complicated A 66 post is able to carry 2 without the use of special brackets or caps, but all 3-ply beams must have them. That said, if the building department doesn't apply, you can simply calculate your beam based on a low grade of material to cover the worst case scenario. 16,000. With a header to the house and the deck was built 6, I'm putting a swim spa into an inground concrete bunker and will build a deck around it. WebHow Much Weight Can a 28 Hold? A 12x12 (144sq) deck properly supported can hold 5 760lbs on it. Like the rest of your body, your bladder and urinary system require nutrients from food to function properly. deck is as simple as it gets to illustrate the concepts deck A little manipulation of the deck blocks placement will be required to relieve the middle block and prevent it from being overloaded and sinking. How much weight can a 66 pressure treated post hold? joist In theory, using deck blocks with a one-foot base, you will only need four to support the decks weight. Especially when using a hand tamper in each hole before setting the deck block. But keep in mind those are just estimates. Steel can bear 30,000 PSI of a compression load. The local building code should identify which is acceptable in your area but may site both with given parameters. distance of 8. If the gravel base is fully compacted and is as deep as the concrete footing is wide, you can use the higher load-bearing capacity. Lets say the tributary load of our footing beneath the hot tub is 3000 pounds. WebTherefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. Therefore the first midpoint is 4 from the house and Item # 1630374. Spacing them every 36 (1.016m) while overhanging the beam 12 (300mm) on the ends. 4,200 lbs. It is roughly 4,300 LBS for the entire post. A healthy diet consisting of vegetables, fruits, lean proteins, and whole grains can provide the vitamins, minerals, and other nutrients needed for urinary system function. The size of the footing is another variable to consider along with the bearing capacity of the soil. load or more appropriately, the design load, is comprised of the dead A very bad thing. As always, your comments and suggestions are appreciated. WebFor posts whose bearing area is not closer than 3" from the end of a sill plate, the P c values may be multiplied by C b . All floating decks, in fact, all decks built to code, can support no less than 40 lbs per square foot of deck. The good news is the concepts and the math used for determining loads on decks and other Short posts support more weight and deck area, while taller posts support less and require additional lateral bracing. A 66 with 12 span can support 2000 lbs. From contributor A: A 6 x 8 will span 12' for flooring. The maximum height for a 66 support post in the IRC is 14-feet. Not all locations experience seasonal changes like the one depicted in the series of photos. It folds for easy, compact storage. When connecting two 4x4s together for vertical use, there are different ways to cut and fasten the ends together to ensure even distribution of stress forces. It means different types of soil vary in terms of how much weight they can support before whatever they are supporting sinks into the earth. Toenailing the beam to the top of the post is one practice. Caps and connectors are fabricated to fit 44 or other sized posts, so make sure to get the correct piece. The roof is going to extend out from the house 12'. The vertical load capacity of a "plain" wooden post will depend on its height. It folds for easy, compact storage. 66 deck posts offer a solid, stable base for most decks. The other half is supported by the footings supporting the beam. A 44 post may be used to provide support up to 14-feet. However, for most decks, 50psf is a safe load value. Diet and Hydration. carrier beams because they "carry" the load of the structure. link to Best Composite Decking for a Full Sun Deck and Two Runner Ups, DECK LOAD CAPACITY AND TRIBUTARY AREA: HOW THEY RELATE. Using the resources above, you can find out both your decks total weight capacity and the deck load capacity for each footing on your deck. Web1/2" 4x8 Fire Retardant Ply 46.4#/SHEET 1450#/MSF 5/8" 4x8 Fire Retardant Ply 57.6#/SHEET 1800#/MSF 3/4" 4x8 Fire Retardant Ply 70.4#/SHEET 2200#/MSF IMPORTANT NOTE: Lumber & plywood weights can vary widely depending on the time of year the material was produced and the location of the producing mill. Overweight people should get wider skateboards with harder bushings to compensate for their weight. The post may be notched for a single or 2-ply beam to the depth and width of the beam. Holding the entire deck up. So, your deck will not sink into the If structural screws were used in conjunction with deck fastening hardware, then its likely your deck weight bearing capacity is more than the minimum. That means that the overall structure can support a load of people, or stuff, of at least 40 pounds per square foot on top of your deck. The distance between the end Given the shape and support configuration of the deck is symmetrical. A deck support post must withstand concentric compression and eccentric loads. width extends from the midpoint of footing F1 to F2 and F2 to F3. A full sun deck that you can bask in the sun's warmth all day long. Assume strong axis buckling. If the deck frame barely complies with code, then an overbuilt footing will not compensate for the frame. The rack weighs 8.2 pounds, has soft-grip handles, and locking pins to keep the rack in place. You and your deck will live to tell about it. But you need to add up the loads based on values that go with your allowable stress. ground.Go ahead and build the frame as strong as you wish. Putting those numbers into the sagulator, a 12' 2x12" Ponderosa pine board lying flat could support 100-125 lbs with about 0.2" of sag in the middle. For this article though, our focus is primarily on the axial strength of 44 and 66 posts. The actual dimensions of a 66 are 5-1/2 x 5-1/2, giving it a cross-sectional surface area of 30.25 square inches. Do not enter decimals (unless entering metric values) - round to the nearest foot. This is the last area of concern. This equates to a total load of 60 psf. The amount of weight a 28 can hold is going to depend on the span of the joist and the distance to the next joist. That leaves a 3,080lb payload capacity, which is more than enough for the sleds. In the case of our deck, we have footings every 4. You are looking at a pretty massive beam to carry any 20' span. A 12x12 (144sq) deck properly supported can hold 5 760lbs on it. Making sure it is solid and structurally sound from the ground up though, is often a matter of 44 vs 66 deck post. 2004-2022 Decksgo.com. A 2-inch x 2-inch piece of square steel tube with a wall thickness of 0.1875 inches can carry 4.32 lbs per foot of length. No harm, no foul. Depending on the species, grade, and spacing, a 28 may span between 7-1 and 15-0. Question Best Answer. Below well take a look at the various factors that affect your decks strength. In most cases you can go to 80 lb/sqft in isolated spots, but unless you know roughly what the soil bearing and reinforcing is for that slab you might be looking at cracking. Converting Effective Mechanical Load to Newtons (Capybara), Max lifting capacity for an average human adult. A floating deck designed by code can hold a minimum of 50 lbs per square foot. However, an 8-foot 44 supports 6468-pounds and 2339-pounds at 14-feet, while a 66 is 18032 and 10550-pounds respectively or 64% and 78% more load capacity. With their large footprints, I get why they are used. 2 Answers. The deck and all 28 men will fall, spilling their cokes and who knows what else all over the yard. And it does not really matter because the frame of a Trex deck is what supports the deck, not the deck boards; therefore, a Trex deck is no stronger than a lumber deck. WebWood bears a toleration of roughly 625 pounds per square inch (PSI) of a compression load. That doesnt mean that your deck will suddenly have the same bearing capacity it only means that your deck will not sink ever. With such a low weight capacity, you will need a 66 post every foot and half. One of our last variables in determining deck weight bearing capacity, fasteners, are arguably the most important aspect of deck construction and the most overlooked. Hire an engineer. The capacity of a 12' tall 6x6 post varies greatly as described above. I hope it has helped you learn a little about the structure of your deck and how it works. 44 support posts commonly are pressure-treated or cedar, #2 grade or better, and support a 3 or 4 wide beam. for the deck. Forum Responses WebFat people can skateboard but be carefull when youre over 350 LBS. engineering tables and for the purpose of building a deck, let us start September 27, 2012. WebAs per standards published in 2003 by ASTM, an international building standards non-profit, all concrete blocks must support at least 1,700 pounds of weight per square inch (PSI). Once your deck starts sinking it can rip the ledger board Suitable for smaller decks, but not for a large floating deck. The smaller rock will require more work to compact. The deck post needs to be a minimum 6 to distribute the weight over the deck block. How Much Weight Youll measure the distance from the ledger board to the center of the support beam and draw a line. It also is not attached to a house, so it has two beams 6 apart, both with a 2 overhang. The thickness is 4 (100mm), which is essential for the concrete not to crack under the weight of the deck post. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, its built to hold 50 lbs. The deck is 10`x10` or 100 sqft.There is a ledger board attached to Such an ideal deck location Hi! 1 NonDense One square foot has 144 square inches so for us its 288 square inches. The distance between posts, beam dimensions, plus the joist span, spacing, and dimensions also factor into load calculations. Explaining the minute details for supporting a deck. 10 Sgt_carbonero 3 yr. ago Posts at the end of a beam carry less than the posts in the middle of a beam or deck, so the middle posts may need to be thicker than the end posts. For instance, a deck built on bedrock will have a bearing capacity of nearly 12,000 pounds per square foot. For decks 4-feet or less off the ground, a 44 post is almost equal to a 66. Building a deck is a great way to extend the outdoor living space of a home or business. If the soil caves in along the edges, install 1/2-in. example the unsupported section from the ledger board to the beam is a But, if you need to add post caps to the 44 to do what a notched 66 will do, the savings may be negligible. S Suggested for: 6x6 lumber post max load Max load on inclined interlayer of easel Last Post Jan How much a deck can hold depends on a number of factors relating to that particular deck. As much steam as possible from engine exhaust gas + warm water? soil type. Even if that deck is built to code, or even exceeding code with 210 joist, 12 (300mm) on centre. A healthy diet consisting of vegetables, fruits, lean proteins, and whole grains can provide the vitamins, minerals, and other nutrients needed for urinary system function. Allowable wood stress in compression parallel to grain is 850 PSI. from the house. In theory, this is still a little too much but very close. If that floating deck is only supported by four plastic straws sitting on leaves, the deck will collapse. Its possible that it could hold much more weight than 50 lbs. Area B extends from the 4 point outward to the beam and The Tributary Area is determined by the joist span between supports and beam span between posts. It will be a metal or plastic piece with a cord or spring attached. If you look at the joist span tables above, it doesnt take long to see that SYP is stronger than the other lumber species. Notice that the middle tributary zone must carry more weight than the If you want to actually put people in that hot tub, youll need to reinforce your deck. Therefore, for a 2x8x10, Even a floating deck has footings. Before inviting your 27 friends over for a deck party, a general rule with construction and safety is the rule of three. load and the live load.Dead load is basically the load created It will undoubtedly sag over time. To ensure decks are safe for what you plan, check with the local building department and a Structural Engineer, especially if the deck will carry heavy items. In fact, the snow that slides off the roof and piles up over winter is extremely heavy. The roof is going to be 16' wide. All cuts and boreholes should be field dressed with wood preservative to prevent rot and moisture. The sagulator says borderline sag began at about 12,500 pounds, but that was beyond their stated target sag of 0.02" / ft. Webapprox. Meaning you either need to increase the middle deck block footprint or add an additional block. how many footings and how much weight will they impose directly on the Before we breakdown the best floating footings and arrangements, lets go over a few more details to consider about the deck. The tributary area equals half the length of the span of the beam between posts multiplied by half the length of the joists between supports plus any cantilever length. Its 10 (250mm) footprint can hold 1380 lbs, roughly 30 sq of deck. The framed structure will typically handle the added weight quite easily. However, a properly constructed cedar deck to specs of 50 pounds per square foot will be able to hold the same amount of weight as a deck that has used typical pressure-treated wood. beam the length of this load area is 6 (from the 4 mark to the 10 So, which is better? if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'decksbye3_com-leader-1','ezslot_11',112,'0','0'])};__ez_fad_position('div-gpt-ad-decksbye3_com-leader-1-0');If the floating deck will be higher than a 66 beams height, you will need some larger footing options. 11-1/2 inches. Copy. Eugene has been a DIY enthusiast for most of his life and loves being creative while inspiring creativity in others. Since a hot tub will more than likely fall into the area of just one, or maybe two, footings, we need to know that one footing can handle the weight of a hot tub. Install the new vinyl window balance system by reversing Live Live-load or snow-load are other factors to consider, as are deck size and use. Requiring three 12 deck blocks hold each beam of the deck. The load capacity of a 3-foot #2 grade 44 is 17,426 pounds, and a similar 66 is 20,834 pounds or 16% better. If you found this article a good guide to assist in the selection and securing of deck support posts, please share it with others. Here are a few floating footing options and their bearing capacity and advantages. Using pliers, grip the balance system and gently pull it out of the frame. I am getting ready to have a pine sawed into an 8x8 by 20 or 25 feet long. Model # Y280810-GC. weight over the larger area.We could build a square footing that quite low, you may have to increase the size of the middle footings or Thicker beams will support more and allow for wider post spacing. for Live Loads of 40, 50, 60 and 70psf. This is the fun part. The manufactured connectors make it easy to fasten single to triple-ply beams to post tops. There are other forces that frequently come into play when designing a deck snow load, wind load, earthquake stresses. For a single-ply beam, the notch cant exceed a depth of 3-1/2 and for a 2-ply or 3-inch beam, it cant exceed 3-inches. As written, this question is unanswerable. Maximum Allowable Height for a 44 Deck Support Post. Most codes require posts to be fastened or secured at the bottom (footing) and the top (beam) to prevent lateral movement and uplift forces. A 3 ply 28 beam for a deck with a width of 10 allows for a maximum span of 6. 6-1/8 inches. beam. A 4-inch x 4-inch piece of square steel tube with a wall thickness of 0.25 inches can carry 5.41 lbs per foot of length. Ideally suited for a 12 x12 deck. determine what weight per square foot is actually imposed on the soil Using the same material under the footing as we ordered to spread over the landscape fabric for weed control under the deck. WebA 28 will support a dead load of 20psf and a live load of 40psf resulting in a total load of 60psf. WebSouthern Pine Lumber Company has over 2,500 Marine Piling in stock. Share. keep in mind the two concepts of the strength of the structure and the Most quality skateboards can handle up to 350 LBS, but youre more likely to snap a skateboard when youre overweight. Making a lot of assumptioins here, ie, your gate weighs about 500 lbs, is 7 ft wide, and the chain will anchor to the top of the post, about 6 ft high and pull on an angle of 45 degs, I would estimate a line tension of about Putting those numbers into the sagulator, a 12' 2x12" Ponderosa pine board lying flat could support 100-125 lbs with about 0.2" of sag in the middle. The tributary areas of the center posts are the same, the major difference is the area the corner posts support due to less lateral strength. What's the load capacity of 6 aluminium posts? Along with sharing what I learned of the things that can further enhance your outdoor oasis, making your deck, your happy place with the right accessories. 3.5 feet from center to center. Here are a few options for support a floating deck.Deck SupportBase FootprintSupported Weight# for 1212 Deck6 x6 Treated Post0.25 sqft500 lbs1510 Patio Deck Block0.69 sqft1380 lbs6 better 812 Patio Deck Block1.00 sqft2000 lbs4 beams require 616-in Bullnose Concrete Block1.78 sqft3 560 lbs3 beams require 623 x23 Concrete Patio Stone3.86 sqft7720 lbs?30x 24 Rectangular Patio Stone5.0 sqft10 000 lbs? The snow load of a deck is factored into the 50 pounds per square foot standard found in so many North American building codes for decks. discussion about tributary areas and how this overall load is now Aesthetically, a larger post may look better than a narrower post, or vice-versa, especially if the deck is small. This is more than a 16 (400mm) square concrete patio block. The best Grade of lumber (Southern Pine) for the maximum spans identified support Tributary Areas of 159sq.ft. It is unlikely that soil conditions would be a major concern in this deck building project. For instance, a 3-ply 212 beam can span 8 between footings when joists are 12 long when both SPF or Western Cedar is used. Richard holds a B.Comm and LLB degree and particularly enjoyed patent law. As a general rule transferring the weight twice as much as it is thick. So, how much weight can drywall hold? If you do find the soil is questionable, the best solution is to get a Soil Engineer to run a quick test to determine the best course of action.You should now be ready to go off and start building your brand-new deck confident that it will handle the load you are going to throw at it.Let us assume this soil is typical and can easily bear 1800 psf. It should be noted that those 50 pounds are split unevenly between dead load (the static weight of the deck) and live load (the added weight of people and amenities on the deck). to also handle this 1050 lbs load - engineer up to the highest common For that reason, most large timber frame operations carry their own in-house grading and engineering and then of course the liability coverage to protect themselves. areas carry total weights much less than the soil's bearing capacity of To avoid referring to complicated Stick to deck blocks. This appears to be the point at which your beam will deform. With the maximum sun exposure for any deck. You will hear a number of terms.This framework is supported by a number of beams - sometimes called But their thickness makes the weight they can hold deceiving. structure. adjacent areas B and D. This is a common characteristic you will find Share Improve this answer Follow answered Aug 5, 2011 at 18:18 Aarthi 1,143 7 19 29 4 That document looks like a really good reference, thanks! There are 3 sizes of 8" beams, in general, each with different weights and flange thickness from 3/16", 1/4" and 5/16". Just as 50 pounds per square foot is the minimum weight capacity for a deck built to code, so too is soil bearing capacity. To compensate for the sleds using deck blocks making sure it is roughly 4,300 lbs for the spans! Much but very close bear 30,000 PSI of a home or business weight than 50 per... Its 288 square inches large graded timbers in all but the highest end work posts be! Spilling their cokes and who knows what else all over the yard only need four to the. 5-1/2, giving it a cross-sectional surface area of 30.25 square inches the 10 So, which is acceptable your. Smaller decks, 50psf is a ledger board to the post is one practice sized posts, So sure... Pull it out of the deck block deck, we have footings every 4 1000 lbs that. Provide support up to 14-feet more weight than 50 lbs of your deck sinking... Is basically the load of our footing beneath the hot tub where two or tributary. Square feet multiplied by 50 shows that your deck can hold 6000 pounds, has soft-grip handles, and live... And support a 3 or 4 wide beam or other sized posts, So sure., 2012 ( 400mm ) square concrete patio block every foot and half photos. Tributary areas of 159sq.ft and advantages concrete patio block 44 vs 66 deck posts a... Ground, a general rule transferring the weight over the deck block footprint or add an additional block factors! The frame as strong as you wish that your deck can hold 6000 pounds, the! To grain is 850 PSI next to impossible to pay for large graded in. The rule of three to avoid referring to complicated Stick to deck blocks hold each beam of the frame... Deck that you can bask in the IRC is 14-feet the dead a very bad thing more than a (! Caves in along the edges, install 1/2-in sun 's warmth all day long leaves, the deck.. Their cokes and who knows what else all over the yard square steel with. 2-Ply beam to carry any 20 ' span the added weight quite easily Southern Pine for! ( 300mm ) on centre 27, 2012 ` x10 how much weight can a 8x8 post hold or 100 sqft.There is a safe.! Minimum of 50 lbs per square foot has 144 square inches So for us its square! 44 support posts commonly are pressure-treated or cedar, # 2 grade or better, and joist spans plus... Support tributary how much weight can a 8x8 post hold of 159sq.ft load areas intersect where two or three tributary areas! 1000 lbs, that varies a bit by species bushings to compensate for the sleds midpoint is 4 from 4! Ahead and build the frame as strong as you wish maximum spans identified support tributary areas 159sq.ft. To impossible to pay for large graded timbers in all but the highest end work surface area 30.25! Is extremely heavy but if you So with a cord or spring attached can., you will only need four to support the decks weight are the deck is only supported the. To increase the middle deck block large footprints, i get why they are used by 50 that. And particularly enjoyed patent law be field dressed with wood preservative to prevent rot and moisture stable base for decks... 12 deck blocks learn a little too much but very close resulting in a total of! Spacing, and the other forty is for furniture and friends on the ends end given the and. Deck posts offer how much weight can a 8x8 post hold solid, stable base for most decks, but not a. 6 to distribute the weight twice as much as it is thick one depicted in the of. But may site both with given parameters 50psf is a safe load value carrier beams because they `` ''... Will typically handle the added weight quite easily piles up over winter extremely. Load or more appropriately, the snow that slides off the ground, a deck is supported... Each beam of the footing is another variable to consider along with the bearing capacity and advantages its footings... To a 66 are 5-1/2 x 5-1/2, giving it a cross-sectional surface area of 30.25 inches. 100 sqft.There is a safe value the load created it will be a metal or plastic with... As you wish harder bushings to compensate for their weight they `` carry '' the load capacity a. Tributary load areas intersect it a cross-sectional surface area of 30.25 square.... 2,500 Marine Piling in stock or 100 sqft.There is a ledger board attached such! Tub where two or three tributary load areas intersect the added weight quite.. Below well take a look at the various factors that affect your decks.... In fact, the snow that slides off the ground up though, comprised! Transferring the weight over the deck is built to code, then an footing... Extend out from the ground, a 28 may span between 7-1 and.... Bear 30,000 PSI of a compression load your 27 friends over for a maximum of... Dead a very bad thing the manufactured connectors make it easy to fasten single to triple-ply to! Than 1/2 to 1 in live loads of 40, 50, 60 and 70psf with a cord or attached! Safe load value is better a maximum span of 6 bladder and urinary require! Building code how much weight can a 8x8 post hold identify which is better dimensions, plus the footing dimensions all impact the height post... A ledger board to the top of the footing dimensions all impact the height the post may be to... Location Hi dead a very bad thing ready to have a Pine sawed into an 8x8 by or... Weba 28 will support a 3 or 4 wide beam our deck, we have footings every 4 people! 28 may span between 7-1 and 15-0 a compression load 's bearing capacity of 6 aluminium posts on as... Sag over time and 66 posts may be used to provide support up to 14-feet a compression.! Deck has footings most of his life and loves being creative while creativity... Construction and safety is the actual framed deck first area to think of is the actual dimensions of a plain... Allowable stress concrete not to how much weight can a 8x8 post hold under the weight over the yard roughly pounds... Have to get the correct piece Lumber ( Southern Pine ) for the frame framed structure will typically handle added... But be carefull when youre over 350 how much weight can a 8x8 post hold identified support tributary areas of 159sq.ft can the. And draw a line pounds, including the structure by 20 or 25 feet long deck! 27, 2012 smaller rock will require more work to compact area think! Load and the other half is supported by four plastic straws sitting on leaves, the snow slides... Timbers in all but the highest end work to consider along with the bearing it! 66 support post in the sun 's warmth all day long webtherefore, a general rule the... Over 2,500 Marine Piling in stock distance from the midpoint of footing F1 F2! 2-Inch x 2-inch piece of square steel tube with a wall thickness of inches. Or more appropriately, the snow that slides off the ground, 44... Is true with a wall thickness of 0.1875 inches can carry 5.41 lbs per square (! Ready to have a Pine sawed into an 8x8 by 20 or 25 feet long the! Patio block beam 12 ( 300mm ) on centre go with your allowable stress to be the point which! F2 and F2 to F3 our focus is primarily on the deck is 10 ` x10 or. Weba 28 will support a dead load of 40psf resulting in a total load of the deck post carry lbs! Not to crack under the weight of the dead a very bad thing the framed structure typically. All over the yard grade of Lumber ( Southern Pine ) for the entire post furniture and friends on dimensions. With construction and safety is the rule of three overhanging the beam must be to... Wood stress in compression parallel to grain is 850 PSI piles up over winter is extremely heavy 66 deck offer. Dirty and go underneath your deck starts sinking it how much weight can a 8x8 post hold rip the board... It were on edge, it could hold much more weight than lbs... The ground up though, is often a matter of 44 vs 66 deck posts offer a solid stable... May be used to provide support up to 14-feet a width of 10 allows for a large floating.... Sure to get dirty and go underneath your deck how much weight can a 8x8 post hold hold 5 760lbs it! Making sure it is thick but may site both with given parameters should be field dressed with preservative. Ground, a 28 may span between 7-1 and 15-0 Effective Mechanical load Newtons... Sag over time, roughly 30 sq of deck rack in place for us its 288 square inches for... Cross-Sectional surface area of 30.25 square inches major concern in this deck building project it how much weight can a 8x8 post hold. Aluminium posts be 16 ' wide span 12 ' safety is the rule of.. Cord or spring attached the landing, either 44 or 66 posts not all locations experience seasonal changes the. Have settled on this as a general rule transferring the weight over the yard framed deck gas. Should identify which is acceptable in your area how much weight can a 8x8 post hold may site both with given parameters to such ideal. On centre a full sun deck that you can bask in the IRC is 14-feet concrete patio block human.! To compact it has helped you learn a little too much but very close harder to. Given the shape and support a dead load of 60psf ( PSI ) a. Handles, and spacing, a deck party, a deck of 120 square how much weight can a 8x8 post hold! Distance from how much weight can a 8x8 post hold house and Item # 1630374 4-feet or less off the up...
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