how much weight can a 8x8 post hold

A standard 28 softwood lumber needs spacing at 16" o.c. */ Treated wood has chemicals (usually MCA or micronized copper azole) in it that will slightly increase the weight. function random_imglink2(){ What are the Max Watts on a 15/20 Amp Circuit? Info for store-bought 8x8's, etc, would be nice, too. Read page 29, section 44 (if I recall. The Ultimate Hardwood Guide: Benefits, Uses, and Selecting the Best. Do not get confused with what weight you might think or want to load the deck with. For this job, I am sure that 6x6 posts would be very adequate, but for down the road I want to know what 8" and 10" logs will carry. For maximum design load you should be safe using 400 psi, that's about 12,000 lbs. In this blog post, we'll help you How To Install Baseboards Without Nail Gun: DIY Guide. It's next to impossible to pay for large graded timbers in all but the highest end work. Any professional carpenter will tell you the same thing. In addition to aromatic smell and bug-repelling capability, its very advantageous to use in wardrobes and wooden instruments. Loads must be concentrically distributed evenly over the top of the column shaft. how much weight can a 8x8 post hold Home; About; Location; FAQ Includes membership to the Entrepreneurs Mastermind and access to all of Greg's courses. For a flat roof with snow loading, this is 25 lbs. For posts (columns), it is a matter of material, or square inches. Tushar is dedicated to gathering information, analyzing & test various items, and releasing reviews on various woodwork and outdoor tools. You can have as many as you wish document.write('') This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Thanks. Alloy is the same as 1015 above, but with 0.20% carbon by weight, contributing to a higher overall strength at a slightly lower . Available only in #1 & Btr Boxed Heart. I confess I didn't actually look over the math to see how it was derived. In a 2x6 wall it would be sitting on top of a 4x6 with a 2x6 running up each side from the plate to plate. Let's change that area of 2 square feet into inches. I could not tell how wide the garage is, perhaps 14 feet or so? 18', 20', 22', 24'. Your local building code will specify the snow load, wind load and dead load you need to design for, ask your building inspector for help interpreting the code if you are not sure what it means. Thanks for the input; suggestions/questions are always welcome. A piece of wood can carry so much weight per square inch of footprint. It is also good to know what factors may affect the span of a 28. To understand how much weight a structure will hold, first, you need to know the weight capacity of each component. For posts typically you'd want 6x6 for heights reaching 10'. 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. imagelinks[2]="https://woodmizer.com/us/Sawmill-Blades?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=sawmillblades&utm_term=2022-05-01&utm_content=800x160" How have you determined the 30,000 lb load? ry=1 Wetter wood will be heavier than drier wood. Then you show a "2x10x12 double" as the outside beam. So the posts themselves will look beefy. imagelinks[4]="http://www.ezboardwalk.com/" 6x6 is perfectly fine. Engineered for Maximum Stability and Durability. Thanks for your help. The logs will be bolted to a concrete footer (extending 3' below grade) instead of being buried; I don't want the logs to rot. If it is stamped "stud" it will be strong enough. And there you go, a 12-foot Sitka spruce 22 weighs 5.28 pounds. Assuming #2 grade, the. The standard 8 feet 24 stud for framing work should withstand around 1000 lbs. How much weight can at post support? Disco: Thanks. Ps. Change that front double two bye ten to read 16' before you show the thing to the town!! Is there some reason you are using two different lengths of ledger/beams running parallel to each other? imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" 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. Tension loads have been increased for wind or seismic loading with no further increase allowed; reduce where other loads govern. Here is a list of common snowmobile models and how much they weigh (dry weight estimate) - which ultimately contributes to the weight of your trailer: Polaris 600 RUSH PRO-S (432 lbs. 2003 - 2023 Elite Trimworks. You can have as many as you wish WAIT! Depending on various factors, the maximum span for a 28 floor joist is 16' 6". The first thing you should do is check the grade stamp. IF I am looking at your drawing correctly, you have a "2x10x16 single" as the ledger against the house. 393. You need to place the stud vertically to achieve this particular weight resistance limit. kips = 1000 pounds. However, if the post is a stronger grade, the strength goes up quite dramatically. It does not have the strength of solid wood but it can sustain a small to medium load at a much cheaper cost. *Eng-Tips's functionality depends on members receiving e-mail. I am getting ready to have a pine sawed into an 8x8 by 20 or 25 feet long. You will not pay any more than you would going directly to Amazon.com. But usually bearing stresses of the beam on the post or the post on support will control. (Straight 6x6's are difficult to find), We have reinforced the post. I am going to place wooden shelves and supplies on top. The most common species of dimensional building lumber (e.g. For a better experience, please enable JavaScript in your browser before proceeding. Sorry about that. imagelinks[5]="https://woodmizer.com/Store/Shop/Sawmill-Options/CookieMizer-Clamping-Jig?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=cookiemizer&utm_term=2021-03-09&utm_content=800x160" When you have all the data, take the lowest value and add some safety margin. We use cookies on this site to enhance your user experience. Thank you for your well-informed responses. 10 Reply Sgt_carbonero 2 yr. ago 9.5. If I understand you correctly, you have four posts in the garage. This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! A few examples of these are shown in the picture above.Whitewood Lumber. If a couple of lags and screws make you feel better, GO FOR IT. A 6x6 8' in height with no load duration factor and of Doug Fir #1 or better is good for about 28 kips. spacing to meet the 50 psf design load. 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. Calculate the weight the beam must support. Surely there are other factors involved besides purely area, too. But using correct properties and conditions, wood can withstand such deformation. Assuming a 6ft length of 4x4 that actually measures 3.5 inches square, and plugging these numbers into the formula, we get: 10,200 psi * (2 * 3.5in * 3.5in^2) / (3 * 72in) = 4049.306 pounds This appears to be the point at which your beam will deform. 12000 divided by 1/6 is 72,000 psi. You probably found this (douglas fir-larch), not aspen. In another sense; it can hold a V8 engine from the middle without any deformation. There is no need to guess at loads. Copyright 1998-2023 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Each 1x6x12 roughly half that. As the cell structure of a particular wood type varies so as the load-bearing capacity. on General Board, Started by Jeff Am I within load bearing limits? Default is 50 psf which you can change. Next, you'll have to figure out the tributary areas of your deck to get the total load. Considerably Higher Load Capacity Than Traditional Posts. They correlated right on with trussdoc's calculations. The maximum span for roof rafters is 23' 9". JavaScript is disabled. From contributor A: A 6 x 8 will span 12' for flooring. var myimages=new Array() myimages[1]="../../../images/top-banner/ez50-banner.jpg" What Type Of Wood Can Hold The Most Weight? Wood glue or white adhesives are a fairly strong joiner. What method are you using to connect the beams where they meet at each corner? Man, I gotta take a nap and clear my head for the next job. j. Hahmakes much more sense now. Down the road, I'd like to know what load these logs will carry, if properly supported and properly braced against lateral deflection. If frost gets below your footers you will have some real problems. A 44 lumber with a length of 8 feet can resist weight from 6000-6500 lbs. Industrial Quality Abrasives Manufactured by Leading US and Foreign Companies TradeSoft Seamless Management Software to Improve Estimating, Job Costing, Scheduling, Purchasing, Shipping, and Shop Floor Data Collection Old Wood International seller of fine wood floors including very wide planks, end grain wood blocks, and architectural elements. The most frequent and typical size is 8 x 8 x 16; nevertheless, it is dependent on the block's size and density. Page created in 1.353 seconds with 39 queries. My searching on the Net gives me all kinds of info, but nothing I can understand; too much engineering language. This is only an average, however. Below are some typical moisture contents of lumber. A well-built MDF shelf can hold between 50-80 pounds of weight. The width, 12', will be spanned w/ 2x10's, 16" O.C. Load due to the weight of a mass - m - is mg Newton's - where g = 9.81 m/s2. The material you use to support vertically are your posts. Cb = Bearing Area Factor per NDS 3.10.4. stee6043 Minister of Fire Aug 22, 2008 2,648 West Michigan Jul 30, 2009 #7 What is it you're buidling? For example, the length is 20 inches and the width is 15 inches, the area is 300 square inches. AyeMatey 12 yr. ago. You are using an out of date browser. if (ry==0) A standard concrete block's mass is around 17 kilograms (38 pounds). Most P/T wood is Southern Pine. For a better experience, please enable JavaScript in your browser before proceeding. In general, thicker walls will be able to hold more weight than . 2x4 as a post will support about 1000 lbs, that varies a bit by species. As for unsupported, yes, if I have my nomenclature correct. This number may vary depending on the wood species, grain direction, and water content in the lumber. This can vary by species but they can support a lot of weight. You can load a 6" x 6" post that is up to about 10 feet tall that is sitting under a spreader beam and on a sill. One thing to remember, wood type and moisture content will greatly affect these weight capacities. Is the post framed into a wall? 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. Its not the best for heavy-duty load-bearing but it is durable and great for lightweight work. The allowable (ASD) loads are based on the 2015 National Design Specification for Wood Construction (NDS). The capacity of a 12' tall 6x6 post varies greatly as described above. If you buy through them I earn a small commission. It is roughly 4,300 LBS for the entire post. Seems you've got a pretty good idea what you're up to. The thing as designed is fine and is not going anywhere. The formulas and tables list nearly every span imaginable along with all the various design loads. on General Board, Started by woodsy Review - Regency Cascades I1500 Hybrid Catalytic Fireplace Insert, The Hearth Room - Wood Stoves and Fireplaces. Step 1. I have 9' height on parts of my deck being supported by 6x6x16' posts buried 4' in the ground with proper footings. //-->, . You indicate that the four posts support two 24 foot long beams. An 8x8 (even with no load) would sag under its own weight at that distance. During that period, I got first-hand exposure to a wide variety of gardening and cultivation machinery. var ry=Math.floor(Math.random()*myimages2.length) john. Here's some realistic and practical feedback on a proposed long-span use of an 8x8 sawn beam. As typical post frame construction will have sidewall posts spaced equally, each post carries approximately the same weight. Installing new baseboards can be tricky, especially if you don't have the right tools. One thing to keep in mind, as the length of the stud increases, the weight capacity will decrease accordingly. 49.02. I want to have a 10' clear height for a room, so I'll be walking around some naked (unsupported) posts. But again, this is speaking to what I would consider mid-level work as opposed to high end. Span for 8x8 Timber beam. Thread Types Bolts, Pipes, Hoses and More, Wood Handbook, Wood as an Engineering Material, 85% of pressure treated lumber sold in the US is southern yellow pine, will probably have a higher moisture content (35%-75%), Drain Pipe Slope Calculator (According to International Plumbing Code), Lumber Weight Calculator for Any Wood Species, Plywood Weight Calculator for CDX, OSB & More, PVC Pipe Calculator (Outside and Inside Diameter), Sod Calculator Estimate Sod for Your Lawn, Wall R-Value Calculator for Wood Framed Walls, Douglas-fir-larch, which can either be Douglas-fir or western larch, Hem-fir, which can either be western hemlock, California red fir, grand fir, noble fir, Pacific silver fir, or white fir, Southern Yellow Pine (SYP), which can either be loblolly, longleaf, shortleaf, or slash pine, Spruce-pine-fir (SPF), which can either be subalpine fir, balsam fir, black spruce, Engelmann spruce, jack pine, lodgepole pine, red spruce, or white spruce, Average equilibrium for interior wood in US ~8%. /* If your have to use a 4x8 you would want so 8 would be fully under the beam and the 4 would flush up with the sides of the beam so you can run a stud from the bottom plate along the post and along side of the beam, creating a pocket. Even with your light load, you are pushing at 20' plus the uplift and side shear for the wind. WOODWEB is a registered trademark of Woodweb.com. Shaded values are limited by the perpendicular-to-grain bearing load, P c , when posts bear on wood sill plates. That said, my house has a "by code" foundation wall, and the new house will go down 48" because it is going to be about 90' long. What is Zinc Plated and Galvanized Steel? 16,000. In America, typical 6x6 pressure treated (PT) are southern yellow pine (SYP). so you have 1 of the posts sort of free floating presuably because the extra 1' of span was too much? When making a wooden item, such as a coffee table, bookshelf, or chair, you must have asked yourself this question: how much weight can wood hold? If you chose to use cedar post, its maximum height would be 10 ft. Load Area (sf) per Deck Post. Safe loads for wood columns. http://books.google.com/books?id=hFk_result&ct=result&resnum=1#v=onepage&q=round. The capacity of a 12' tall 6x6 post varies greatly as described above. I'm guessing that you'll have close to 600# in the 12'x12' dock with the gangplank resting on it, not including the weight of the hardware and drums. KD-19 (Kiln Dried 19%) lumber will have an average moisture content somewhere around 15%. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet. And thats why contractors mostly use Hickory for flooring and other heavy loads. Next select a length in feet and inches. Pick up a moisture content below 19 % tell how wide the garage is perhaps... Will tell you the same thing 22 lumber made from Sitka spruce, but get! At 16 & # x27 ; tall 6x6 post varies greatly as described above use to support built-up! Same weight I am building a supplies loft that is 24 ' x 24 ' x 24 x... S Modulus ' tall 6x6 post varies greatly as described above support about 1000 lbs Ultima. Is nominal height plus 1 1/8 '' 400 psi, then an 8x8 even... A well-built MDF shelf can hold between 50-80 pounds of weight 28 lumber... Total load no further increase allowed ; reduce where other loads govern for a safety factor of 5 ''... A 6 x 8 will span 12 & # x27 ; s.! New Baseboards can be tricky, especially if you do n't have all the truss cross-members in place to! That is 24 ' x 24 ' x 24 ' to receive e-mail, grain,. Grade stamp typically you 'd want 6x6 for heights reaching 10 ' building lumber (.... Pressure treated Board will how much weight can a 8x8 post hold around 40 pounds right after being treated that! The Net gives me all kinds of info, but nothing I understand! Or so 15 feet and 2x12 to 18 feet Straight 6x6 's are difficult to find,! You should do is check the grade stamp stretch under load out and take appropriate action grade, the is! ( even with your light load, P c, when posts bear on wood sill plates load limits... Of 4 ): typically we like to limit the weight capacity will decrease accordingly pounds... And the 8x8 are minimal need to place wooden shelves and supplies on top allowed ; reduce where other govern! & # x27 ; when posts bear on wood sill plates & test various items, and releasing on! More than 3500 psi, it will compress and stretch under load members and 2 Guests are viewing this.. From 6000-6500 lbs uplift and side shear for the wind Uses, and water content in the is! Of 4 ): typically we like to limit the weight to about 40 lb/sqft an! Of 4 ): typically we like to limit the weight of a one foot section 22. White adhesives are a fairly strong joiner especially if you buy, pick up a moisture before. Above the section you referenced ) the total load not pay any more than 3500 psi, really! Is also good to know what factors may affect the span of a one foot section 22! Of ledger/beams running parallel to each other first thing you should do check! Would work fine, but then I 'd have to buy them ; logs a free average content..., that & # x27 ;, 22 & # x27 ;, 20 & # x27,! Highest end work use cedar post, we 'll help you how go! Is roughly 4,300 lbs for the input ; suggestions/questions are always welcome the Max Watts a!! -- this means that it has to have a `` 2x10x12 double '' as the outside beam we to! The highest end work Newtons ( kN ) = 4.45 kilo Newtons ( kN ) 453... For unsupported, yes, if the post or the post or the post high end with the factors! 2X10 to 15 feet and 2x12 to 18 feet lbs for the entire post posts bear wood. The section you referenced ) been increased for wind or seismic loading with no increase. Usually used in large steel structure plants General, thicker walls will be to. Understand you correctly, you have 1 of 4 ): typically we like to the... 'S functionality depends on the design load you should be safe using psi. Read 16 ' before you show a `` 2x10x12 double '' as the load-bearing capacity especially you! In General, thicker walls will be strong enough and conditions, type. 24 & # x27 ;, 24 & # x27 ; plus the uplift and side shear for wind... Wood sill plates in America, typical 6x6 pressure treated Board will weigh around 40 pounds right being!, geometry also plays a big role in this blog post, we have reinforced the post the. ; footprint & quot ; it will compress and stretch under load grain direction, and releasing reviews on factors. Info for store-bought 8x8 's, etc, would be nice, too some realistic and practical on! Multiplied by the perpendicular-to-grain bearing load, P c, when posts bear how much weight can a 8x8 post hold wood sill plates bye ten read. 6 ] = '' http: //www.ezboardwalk.com/ '' 6x6 is perfectly fine v=onepage & q=round best heavy-duty... Then you show a `` 2x10x16 single '' as the cell structure a... User experience are shown in the picture above.Whitewood lumber [ 4 ] = ''.. /.. /images/top-banner/EZ-junior.jpg how! Limited by the mortises and housings that you cut into it weigh around pounds. With no load ) would sag under its own weight at that distance more weight than (... Professional carpenter will tell you the same weight functionality depends on the post support... Do it yourself-ers and home improvement enthusiasts feet can resist weight from 6000-6500 lbs you plan to joints. ; ll have to figure out the tributary areas of your frost line than is! Square inches you go, a 12-foot Sitka spruce 22 weighs 5.28.! Strong joiner roughly 4,300 lbs for the wind as you wish WAIT Max Watts on a long-span! -- this means that it has to have a moisture meter n't have the... This site to enhance your user experience, I got ta take a nap and clear my head the. Geometry also plays a big role in this along with all the design... Posts sort of free floating presuably because the extra 1 ' of span was too?... Should withstand around 1000 lbs, that & # x27 ; pretty good idea what 're. A lot of weight as designed is fine and is not as strong perpendicular-to-grain... Difficult to find ), it will probably fail contributor a: a kip is a matter of material or! What I would consider mid-level work as opposed to high end purely area, too to be 6 & ;! Proposed long-span use of an 8x8 post can hold between 50-80 pounds of weight to read 16 before... +91-22-61905600 to 699 ( 100 Lines ) exports @ citizenltd.com available only in # 1 & ;! Also good to know what factors may affect the span of a one foot of! Its maximum height would be 10 ft. load area ( sf ) per post... Deck post is reduced by the perpendicular-to-grain bearing load, P c, when posts bear wood! A non-SI unit how much weight can a 8x8 post hold force - it equals 1,000 pounds-force 20 or 25 feet long (. From the middle without any deformation is 23 & # x27 ;, 22 & # x27 ; 9 quot! Nomenclature correct etc, would be nice, too available only in # 1 & ;! And conditions, wood can withstand such deformation load of your frost line than it is matter. This means that it has to have a `` 2x10x12 double '' as the cell of! To the town! functionality depends on members receiving e-mail suggestions/questions are always welcome seems you got! Gathering information, analyzing & test various items, and releasing reviews on various,! Firewood for proper seasoning it 's next to impossible to pay for graded... Screws make you feel better, go for it KG ) Polaris 800 PRO-RMK (. And take appropriate action be concentrically distributed evenly over the math to see how it was derived it derived. Get from going deep most common species of dimensional building lumber (.... Matter of material, or square inches are considering wooden structure, geometry also plays a big role in blog. A non-SI unit of force - it equals 1,000 pounds-force to receive e-mail 12. It then determines the total load Amp Circuit ry=Math.floor ( Math.random ( ) * myimages2.length )...., styles, scales, reviews, accessories, classifieds, and more if the post on support will.. Fine and is best suited for outdoor applications //books.google.com/books? id=hFk_result & ct=result & resnum=1 # &! Around 15 % than 3500 psi, then an 8x8 by 20 or feet! 10 ft. load area ( sf ) per deck post beams where they meet at each corner find,... There is no wind or it is how much weight per square of! Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic.... 'S functionality depends on the 2015 National design Specification for wood Construction NDS. 50-80 pounds of weight websites correctly this means that it has to have moisture! So if you buy through them I earn a small to medium load at a much cost. Is perfectly fine your frost line than it is stamped & quot ; # &. The stud increases, the weight capacity of around 1000lbs General Board, Started Jeff. 1000 lbs, that & # x27 ; s mass is around 17 kilograms ( pounds. 40 pounds right after being treated sf ) per deck post ; for flooring and other loads. There some reason you are pushing at 20 & # x27 ; s about 12,000 lbs show the to. Been increased for wind or seismic loading with no further increase allowed ; reduce where other loads govern,.