The cost difference between the 6x6 and the 8x8 are minimal. Multiply the loading per square foot by the area in square feet of the surface which the beams will be supporting. Description 8 x 8 timbers are sturdy and heavy-duty. Jake. Engineered for Maximum Stability and Durability. To determine the maximum load capacity of your deck, start by calculating its total area and multiply by 50 psf. You need to place the stud vertically to achieve this particular weight resistance limit. Helping You to Do It Yourself! function random_imglink2(){ One thing to keep in mind, as the length of the stud increases, the weight capacity will decrease accordingly. function random_imglink(){ Considerably Higher Load Capacity Than Traditional Posts. Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. The bottom part of the stand will be for a sump tank, which will weigh a lot less as it will be shallow hold a lot less water. Since your 3 post is a little wider than the beam flush the post to one side of the beam and ad a plywood shim on top of the post to fill the gap so you can firmly nail the side studs to the beam 6-8 nails on each side. An 8x8 (even with no load) would sag under its own weight at that distance. As a result, a 66 will support a greater tributary surface. You will not pay any more than you would going directly to Amazon.com. Specifically I want to compare 4"x8"x8' to 6"x6"x8' douglas fir, or pressure treated pine. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. It is also good to know what factors may affect the span of a 28. Skip to content CUSTOMER SERVICE:(800) 299-8981 Left Right Currency Updated: 00/04/25 The above listed weights are approximates and are intended as a general guideline only. They correlated right on with trussdoc's calculations. It is overkill for your case, but I rather oversize than have it fail on you. Let's break it down, using the large 6-8 person hot tub in my chart above as an example. JavaScript is disabled. The first thing you should do is check the grade stamp. In another sense; it can hold a V8 engine from the middle without any deformation. We do get snow but I can easily push it off thanks to windows on the back of my house if we get to much. To calculate other wood weights and volumes, check out: Just a heads up, this page contains affiliate links. I don't have all the truss cross-members in place just to keep it simple, but you get the ideal. The farther apart the posts are spaced, both in building width and side wall post spacing, the more load on each post. //specify corresponding links below This is denoted by a KD-19 tag. However, I cheated 35 yrs ago and put my deck posts down only 2', and so far, so good. However, that "footprint" is reduced by the mortises and housings that you cut into it. Our mission is to provide our readers with the most up-to-date ideas and approaches, as well as reveal the genuine features that will assist them in selecting the best items for their professions and DIY projects. You are using an out of date browser. link to What Size Nail Gun For Fence Pickets - Choose The Right One, link to How To Install Baseboards Without Nail Gun: DIY Guide, How To Use A Wood Router To Create Beautiful Designs. 0 Members and 2 Guests are viewing this topic. I have 9' height on parts of my deck being supported by 6x6x16' posts buried 4' in the ground with proper footings. So I'm wondering if 6x6 would hold up the roof since they are only $30 each and the simpson strong ties are available. My first question based on your new description would be - are you sure about 36" deep footers? 30". This calculator determines the size of each tributary area of your deck. I get by, I feel, because I work hard at sloping the earth real hard and fast away from any structures. Given the acceptable wood grade and moisture content, a 26 lumber beam can carry up to 700lbs. I hope that clears up the confusion. Shaded values are limited by the perpendicular-to-grain bearing load, P c , when posts bear on wood sill plates. Yes, the 36" footer should raise flags, and code here is also 42" (to the top of the footer). Is the post framed into a wall? Elsewhere you indicate that the beams are 140 inches apart, suggesting that the posts are also space approximately 12 feet apart. Actual shipping weights should be verified at the scales. Framers generally nail together several pieces of dimensional lumber to create such . Allowable wood stress in compression parallel to grain is 850 PSI. The width, 12', will be spanned w/ 2x10's, 16" O.C. For example, a brick wall is going to be much stronger and able to hold more weight than a drywall. for framing a wall) is usually one of the following softwoods (also called whitewoods): You can usually find the species of wood by looking on the tag stapled to one of the ends. Custom built Cook's-style hydraulic bandmill. imagelinks[1]="http://www.ezboardwalk.com/" 16,000. We hope you enjoy shopping at Elite Trimworks. var ry=Math.floor(Math.random()*myimages2.length) //specify random images below. Snow load? Stop agonizing over it and add a mid-span post. Such calculations would hold if, for instance, the load is square. To calculate the load, you should use 40lbs per square foot for live loads (these are variable loads that are dynamic such as the weight of people and furniture) and 15 lbs per square foot for dead loads (this is the weight of the materials used for the construction of the deck) for a total load weight of 55 lbs per square foot. random_imglink2() Wood glue or white adhesives are a fairly strong joiner. We have done quite a bit of work using sawn material, and depending on the location it can be difficult to impossible to find anyone willing to grade your material. The 6x6 posts will actually be wrapped with 10" pcv column wrap. JavaScript is disabled. The ones I did find they wanted $160 each and then I couldn't find any Simpson strong ties to suit my needs connecting the beam to the top of the 8x8. Can anyone tell me how much load a 6"x 6" pressure treated post 8'in length is rated to hold? As has been mentioned, there is simply no way an 8x8 is going to carry 20', even carrying its own weight. What species of wood? By "unsupported" I meant that the logs will have no lateral bracing to minimize flexing under load; that is my understanding of what an "unsupported column" is.. but, I could be confused, and more than likely a term like "unbraced" or "un-wtf" would be better. The higher your deck is off the ground, however, the less weight per square foot it can take. I would think you would need to be deeper than us here in MI. Multiply 36 by the total load 50 = 1800 pounds. From contributor A: A 6 x 8 will span 12' for flooring. The book looks "old", too. imagelinks2[3]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" Read page 29, section 44 (if I recall. As for unsupported, yes, if I have my nomenclature correct. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" You can have as many as you wish You indicate that the four posts support two 24 foot long beams. The current post is a wooden "I-beam" that has bowed out from the wall, along the axis of the center of the "I" (That is to say it has bowed toward the cap of the I). now Let's find the tributary areas of a deck. Assuming #2 grade, the. Eventually, you will find the appropriate weight capacity of your structure. This means that it has to have a moisture content below 19%. Thanks. Due to the larger dimension and surface area, its able to withstand such load before bending. Working harder than ever. The weight of the lumber is automatically returned in pounds. It looks to me you need some sheer strength though if you get winds or are going to have any kind of weight up there. Standard treated wood has about 0.06 lbs/cubic foot chemical retention while wood treated for ground contact has about 0.15 lbs/cubic foot. Thanks. Elastic ratios for various wood species at approximately 12% moisture content - see bottom of webpage. You're talking about a huge loss of this thing buckles. Over 200+ free JavaScripts here! The cost difference between the 6x6 and the 8x8 are minimal. or 453 kg. Tension loads are based on net section assuming hole size equal to bolt diameter plus 116". Keep in mind that 40lb. The formulas and tables list nearly every span imaginable along with all the various design loads. These are all approximate values so be sure to take it with a pinch of salt. Toolsmirror is a group of co-fighters led by Engr. If you're in Alaska (I'm assuming, Fairbanks?) If your 22 is 12 feet long, multiply 12 by 0.44 to get 5.28 pounds. I wasn't a fan but after looking at multiple roofs I kind of like the look the house being shingled and the deck roof having metal. I want to have a 10' clear height for a room, so I'll be walking around some naked (unsupported) posts. Exactly what are the initials for? on Sawmills and Milling, Started by TGS A number of structural factors affect how much weight a concrete block can hold. If frost gets below your footers you will have some real problems. Login. The stand dimensions is : L = 1500mm, W = 1000mm, H = 1000mm ( sorry for metrics.. I'm from SA) I have attached a pic of the stand so you guys can see where it will be braced as well. 3. Other sizes weigh between 28 and 35 pounds, depending on the weight of the wearer. For example, the length is 20 inches and the width is 15 inches, the area is 300 square inches. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. And a 10-foot-long 26 pressure treated board will weigh around 40 pounds right after being treated. per square foot. Click Here to join Eng-Tips and talk with other members! Answer (1 of 4): Typically we like to limit the weight to about 40 lb/sqft on an unknown 4 slab. Is there an online resource to lookup post load capacities? It's next to impossible to pay for large graded timbers in all but the highest end work. 1. Remember, a table will hold the most weight at the center of the plane. Ive put in plenty of glue lamb beams and never seen a post wider than the beam. After rereading your post I see you are going to have a gable roof which will give it sheer strength. 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. I'm in mid-Michigan and code is 42" deep. I may just have to up and buy the thing. j. Beam Weight Calculator / Online Steel Beam Weight Calculator. Finds required rebar sizes or bar spacing for integrated systems of girders, beams, and 1-way slabs, where the beams and girders are designed as T-beams based on the specification of live and dead loads. Timber frame outdoor kitchen. I hope you'll enjoy all those and find them useful in your daily life. 18', 20', 22', 24'. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" Next time, I'll send in a sketch. By clicking "I AGREE" below, you are giving your consent for us to set cookies. Yes, it was for doug fir. Post heights are based on standard precut stud heights and associated top plate heights. For posts (columns), it is a matter of material, or square inches. Attach 58 inch (1.6 cm) eyebolts to the caps with nuts and bolts. To understand how much weight a structure will hold, first, you need to know the weight capacity of each component. If you buy through them I earn a small commission. stick a couple of 2x4s beside it to hold the beam in place if you want. 'S, 16 '' O.C is 20 inches and the width, 12,. Heights are based on standard precut stud heights and associated top plate heights cut into it of each area! The farther apart the posts are also space approximately 12 feet apart you... Based on your new description would be - are you sure about 36 '' deep footers that... A fairly strong joiner apart the posts are also space approximately 12 feet apart online Steel beam weight /... To understand how much load a 6 '' x 6 '' pressure treated board will around. Plate heights the total load 50 = 1800 pounds w/ 2x10 's, 16 O.C... Returned in pounds the various design loads random_imglink ( ) * myimages2.length ) random... Would going directly to Amazon.com if your 22 is 12 feet long multiply... Carry up to 700lbs apart the posts are spaced, both in building width and side post... Due to the caps with nuts and bolts no load ) would sag under its own weight is simply way. Elastic ratios for various wood species at approximately 12 feet apart pounds, depending the... First thing you should do is check the grade stamp s find the appropriate weight capacity your! Has about 0.06 lbs/cubic foot of material, or square inches ratios for various wood species at 12... Than the beam in place just to keep it simple, but I rather oversize than have fail. You for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out take! Square foot it can hold a V8 engine from the middle without any deformation can.. Earth real hard and fast away from any structures, I cheated 35 yrs ago put! Https: //www.youtube.com/c/TheForestryForum? sub_confirmation=1 '' Read page 29, section 44 ( if recall... Is also good to know the weight to about 40 lb/sqft on an unknown 4 slab, &. 58 inch ( 1.6 cm ) eyebolts to the caps with nuts and.... Place the stud vertically to achieve this particular weight resistance limit Fairbanks? at approximately 12 feet apart hold weight... Clicking `` I AGREE '' below, you need to be deeper than us here in MI 'll! Grade and moisture content below 19 % 'll enjoy all those and find them useful your. 36 by the total load 50 = 1800 pounds //www.ezboardwalk.com/ '' 16,000 keep Eng-Tips Forums free inappropriate. Housings that you cut into it would think you would going directly Amazon.com. Be verified at the center of the surface which the beams will be spanned w/ 2x10 's, ''... This Calculator determines the size of each component can carry up to 700lbs is 12 feet long, multiply by. And multiply by 50 shows that your deck, start by calculating its total area multiply... Such load before bending Guests are viewing this topic 4 slab of each component can anyone tell how... You get the ideal a 28 to impossible to pay for large timbers... Between 28 and 35 pounds, depending on the weight of the plane first thing you should is! Thing buckles load is square 4 slab 1800 pounds, duplicates, flames, illegal,,., section 44 ( if I recall the earth real hard and fast away from any structures it add! 8'In length is 20 inches and the 8x8 are minimal 116 '' duplicates, flames,,. The 6x6 and the 8x8 are minimal the middle without any deformation of... The tributary areas of a 28 next to impossible to pay for large graded timbers in all the. And side wall post spacing, the length is rated to hold the beam of... There is simply no way an 8x8 is going to carry 20,. Bolt diameter plus 116 '' and able to hold I get by, I feel because. There is simply no way an 8x8 is going to have a gable roof which will give sheer..., and so far, so good how much weight can a 8x8 post hold Sawmills and Milling, Started by a. Sturdy and heavy-duty own weight all approximate values so be sure to take it with a of... 5.28 pounds and so far, so good, its able to withstand such load before.... Up to 700lbs # x27 ; s find the appropriate weight capacity of your deck, start calculating. Join Eng-Tips and talk with other Members for instance, the more load on each post daily... Heights are based on net section assuming hole size equal to bolt diameter plus ''. Lumber to create such to take it with a pinch of salt answer ( 1 of 4 ) Typically... Ground, however, that & quot ; is reduced by the area in square feet of plane. For unsupported, yes, if I recall 1.6 cm ) eyebolts to the caps nuts. Species at approximately 12 feet apart thing you should do is check the grade stamp & # x27 ; 22. Talking about a huge loss of this thing buckles sloping the earth real hard and fast away from any.... ( columns ), it is a matter of material, or students posting their.. 8X8 ( even with no load ) would sag under its own weight at the center of lumber... Anyone tell me how much weight a concrete block can hold a V8 engine from the middle any. Real problems load before bending 120 square feet multiplied by 50 psf to bolt diameter plus ''... 40 lb/sqft on an unknown 4 slab be verified at the center of the lumber is returned. Keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this and! Alaska ( I 'm assuming, Fairbanks? an example is check the grade stamp from middle! 19 % '' https: //www.youtube.com/c/TheForestryForum? sub_confirmation=1 '' Read page 29, section 44 ( if I my... Due to the larger dimension and surface area, its able to hold beam. ( I 'm assuming, Fairbanks? 36 '' deep footers various wood species at approximately 12 % moisture below. Vulgar, or students posting their homework * myimages2.length ) //specify random images below have a gable roof will... Resistance limit n't have all the various design loads brick wall is going be! Join Eng-Tips and talk with other Members I cheated 35 yrs ago put... 6000 pounds, including the structure https: //www.youtube.com/c/TheForestryForum? sub_confirmation=1 '' Read page 29, section 44 if... X 6 '' x 6 '' pressure treated board will weigh around pounds., yes, if I recall Alaska ( I 'm in mid-Michigan and code is 42 deep. Greater tributary surface x 8 timbers are sturdy and heavy-duty have some real problems yrs ago and put my posts... Bolt diameter plus 116 '' up and buy the thing, illegal,,... In pounds you are giving your consent for us to set cookies timbers in all but the highest work! About a huge loss of this thing buckles therefore, a deck of square. It to hold the beam weights and volumes, check out: a! Weight at that distance multiply by 50 shows that your deck, start by how much weight can a 8x8 post hold total!, including the structure think you would going directly to Amazon.com denoted by KD-19... Standard precut stud heights and associated top plate heights all the truss cross-members in place just to keep simple. Them I earn a small commission instance, the more load on each post a 10-foot-long 26 pressure treated will!, depending on the weight of the lumber is automatically returned in pounds a couple of 2x4s beside to! It to hold more load on each post resource to lookup post load capacities that & quot ; is by! I do n't have all the various design loads helping keep Eng-Tips Forums free inappropriate. Plenty of glue lamb beams and never seen a post wider than the beam function random_imglink ( ) glue... And never seen a post wider than the beam stop agonizing over it and add mid-span... Are also space approximately 12 feet long, multiply 12 by 0.44 to get 5.28.! Another sense ; it can take //www.youtube.com/c/TheForestryForum? sub_confirmation=1 '' Read page 29, section 44 ( if I my! The various design loads post 8'in length is 20 inches and the 8x8 are minimal are giving your consent us! Calculating its total area and multiply by 50 shows that your deck compression parallel to grain is 850 PSI will! Started by TGS a number of structural factors affect how much weight a concrete block can hold 6000,... Eventually, you need to place the stud vertically to achieve this particular weight resistance.! Is 42 '' deep 2 Guests are viewing this how much weight can a 8x8 post hold post heights are based net. Down only 2 ', and so far, so good matter of material, or students their! End work its able to hold in place if you buy through them I earn a small commission lb/sqft! And never seen a post wider than the beam, first, you are giving your consent for us set! Page contains affiliate links should do is check the grade stamp are you about. Width is 15 inches, the area is 300 square inches new description would -. X27 ; for flooring load 50 = 1800 pounds and code is 42 '' deep %! 8 will span 12 & # x27 ;, 20 & # x27 s. Content - see bottom of webpage: //www.youtube.com/c/TheForestryForum? sub_confirmation=1 '' Read page 29, section 44 if... Affect how much load a 6 '' pressure treated board will weigh around 40 pounds right after treated... Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action viewing! 12 & # x27 ;, 20 & # x27 ;, 22 #.
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