Thank you for subscribing to the newsletter! Tributary Areas and Footings Span for 8x8 Timber beam. 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. myimages[4]="../../../images/top-banner/ez50-banner.jpg" 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. imagelinks2[3]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" stee6043 Minister of Fire Aug 22, 2008 2,648 West Michigan Jul 30, 2009 #7 What is it you're buidling? $75,000. Problem is, I am reading it backwards, as the more I scroll up the more good info I find. KD-19 (Kiln Dried 19%) lumber will have an average moisture content somewhere around 15%. S Forums Engineering General Engineering After rereading your post I see you are going to have a gable roof which will give it sheer strength. Perhaps we're mixing up the words. What are your spans? var ry=Math.floor(Math.random()*myimages.length) And thats why contractors mostly use Hickory for flooring and other heavy loads. Maybe I am just lucky, but dry dirt does not heave. I hope that clears up the confusion. How Much Weight Can A 24 Hold? 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. Modulus of Elasticity of Wood, Wood Engineering Design Data. If you choose pressure treated lumber, take note that 85% of pressure treated lumber sold in the US is southern yellow pine, so that is probably what you have. So I'm wondering if 6x6 would hold up the roof since they are only $30 each and the simpson strong ties are available. How much weight can at post support? We have not been in the house long. Login. We who frequently attempt to create various wooden furniture or crafts as a DIY project, I hope the above knowledge will assist them in building safe and excellent items in the future. Considerably Higher Load Capacity Than Traditional Posts. Metal 3D printing has rapidly emerged as a key technology in modern design and manufacturing, so its critical educational institutions include it in their curricula to avoid leaving students at a disadvantage as they enter the workforce. 10 Reply Sgt_carbonero 2 yr. ago 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. Normally all winter we have 5-6" on the ground at all times. } Higher values are safer. Page created in 1.353 seconds with 39 queries. The lumber weight calculator below will estimate the weight, specific gravity, and density of any species of wood. Basically, I'm building a deck and replacing the typical 6x6s w/ logs. Is the post framed into a wall? If you want to test for moisture content before you buy, pick up a moisture meter. 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. WAIT! If you buy through them I earn a small commission. 3000/1500 is 2. After 35 yrs it is no longer "perfectly" level, but you have to work at it to notice. if you want beefier you can just build it up and clad it. So if you plan to glue joints that exert more than 3500 PSI, it will probably fail. This should be a pretty simple but I am having trouble finding the right information. This means that our 4-ply 2 X 12 will be 4 X 1-1/2 inches wide or 6 inches. This can vary by species but they can support a lot of weight. If frost gets below your footers you will have some real problems. Draw a weight distribution map of the structure. Other sizes weigh between 28 and 35 pounds, depending on the weight of the wearer. However, it is highly advisable not to push the 2x4 material up to its limit. Next, you'll have to figure out the tributary areas of your deck to get the total load. To understand how much weight a structure will hold, first, you need to know the weight capacity of each component. Such calculations would hold if, for instance, the load is square. Don't screw around on the internet, get a contractor in right away, and maybe even a structural engineer. 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. Post heights are based on standard precut stud heights and associated top plate heights. 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" john, Good God. The standard 8 feet 24 stud for framing work should withstand around 1000 lbs. A piece of wood can carry so much weight per square inch of footprint. The ultimate load is the defined by area of the roof carried by each post. 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. Yes, the 36" footer should raise flags, and code here is also 42" (to the top of the footer). It's not area, as strength was given as proportional to r^3 for either circular or square (with different scaling constants) and w x h^2 for rectangular in a horizontal configuration. S, 2023 Physics Forums, All Rights Reserved. Yeah I was looking for different ways to strengthen the top for winds but not to sure how to go about it. I just want to know how many POUNDS (not "kips", whatever they are) a 10' peeled aspen log will carry when stood up, unsupported, and is 10' long, etc. Click Here to join Eng-Tips and talk with other members! So the net weight an 8ft x16ft dock will support is 3,120 - 1344 = 1776 lbs. How much weight can my deck support? For interior work you'd usually use steel floor jacks designed to support "buildings". 3 Trusses made with 6x6 overall size is 12x12 4.5 pitch, 2x6 T&G decking , 8x8 columns, 8x8 carrying beam to span 12' center to center at columns read more. if (ry==0) For maximum design load you should be safe using 400 psi, that's about 12,000 lbs. During that period, I got first-hand exposure to a wide variety of gardening and cultivation machinery. / 203 KG) Polaris 800 PRO-RMK 163 (408 lbs. Share Improve this answer Follow answered Nov 15, 2017 at 5:19 LRU 51 1 1 7 Have fun!! Even with your light load, you are pushing at 20' plus the uplift and side shear for the wind. If it is a complex design, focus on the geometry of the structure. Attach 58 inch (1.6 cm) eyebolts to the caps with nuts and bolts. Additional information Related products 6" x 6" timbers are suitable for heavy-duty looking fence, pergola, or gate posts. Here you can operate by assumptions that there is no wind or it is not as strong. Calculate the weight of the snow on your roof. The capacity of a 12' tall 6x6 post varies greatly as described above. And a 10-foot-long 26 pressure treated board will weigh around 40 pounds right after being treated. imagelinks[6]="http://www.ezboardwalk.com/" At 6 feet, it's 10,000lbs. Thanks. Stop agonizing over it and add a mid-span post. The size of the post is determined by the load it has to carry. You probably found this (douglas fir-larch), not aspen. Try to find the weakest point in the structure and enforce it to achieve your specific goal. //specify corresponding links below This is only an average, however. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) 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).