Wetter wood will be heavier than drier wood. Stone Coverage Calculator for Rock Landscapes, Picture Hanging Calculator with Gallery Spacings, Boulder Wall Calculator for Retaining Walls, Log Weight Calculator for Any Wood Species, Post Hole Calculator for Concrete Embedded Posts, Standard Heights for Light Switches, Outlets & More. Treated wood has chemicals (usually MCA or micronized copper azole) in it that will slightly increase the weight. For a better experience, please enable JavaScript in your browser before proceeding. So the net weight an 8ft x16ft dock will support is 3,120 - 1344 = 1776 lbs. 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. Started by kwendt The top of a beam has 2mm (1/12 in) x 2 inch of steel, which is 1/6 square inch. Updated: 00/04/25 Therefore, a deck of 120 square feet multiplied by 50 shows that your deck can hold 6000 pounds, including the structure. If there is no strong wind, a 2x4 measuring at least 8 feet can support at least 1,000 pounds vertically. imagelinks[6]="http://www.ezboardwalk.com/" Remarkably, some of it still stands to this date! What's the load capacity of 6 aluminium posts? However, that number assumes your deck is to code without the deck's weight taken into account. 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. From the above list, we see Cedar falls into the lighter wood category. Question john, Good God. The limiting factor (reason to up-size) will likely be aesthetics and/or the number or type of joints needed. All that said, I can not guarantee that my deck, on the side 12' from the house, does not float up and down a tad. The weight of the lumber is automatically returned in pounds. Cb = Bearing Area Factor per NDS 3.10.4. How do I like my Vermont Castings Dauntless? Treated wood has chemicals (usually MCA or micronized copper azole) in it that will slightly increase the weight. By joining you are opting in to receive e-mail. 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). A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. You indicate that the four posts support two 24 foot long beams. An early on review. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" Are you planning to apply your own safety factor or are you really looking for the maximum allowable load capacity? After 35 yrs it is no longer "perfectly" level, but you have to work at it to notice. 9.5. var ry=Math.floor(Math.random()*myimages.length) In addition to aromatic smell and bug-repelling capability, its very advantageous to use in wardrobes and wooden instruments. In general, the strength of wood depends not only on the thickness but also on type, moisture content, and grain direction. After rereading your post I see you are going to have a gable roof which will give it sheer strength. But first, generally, how far can a 28 span without support? Therefore a post to support this built-up floor beam will need to be 6" by 6". Considerably Higher Load Capacity Than Traditional Posts. You would have a better safety factor . A piece of wood can carry so much weight per square inch of footprint. As has been mentioned, there is simply no way an 8x8 is going to carry 20', even carrying its own weight. But again, this is speaking to what I would consider mid-level work as opposed to high end. This product is green (wet) and is best suited for outdoor applications. 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. You need to place the stud vertically to achieve this particular weight resistance limit. This is the moisture meter I use almost on a daily basis. Good to see that math and physics worked back then; dang stuff may NEVER go out of style! if you want beefier you can just build it up and clad it. For right now, the "span" is 42'. or 453 kg. These commissions go towards things like hosting fees and creation of new articles. KD-19 (Kiln Dried 19%) lumber will have an average moisture content somewhere around 15%. Tushar is dedicated to gathering information, analyzing & test various items, and releasing reviews on various woodwork and outdoor tools. This means that our 4-ply 2 X 12 will be 4 X 1-1/2 inches wide or 6 inches. But usually bearing stresses of the beam on the post or the post on support will control. 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. 4600 140th Ave N. Ste 180, Clearwater, FL, US, 33762. I hope that clears up the confusion. If frost gets below your footers you will have some real problems. For a better experience, please enable JavaScript in your browser before proceeding. Still, frankly I don't know what the builder was thinking (or drinking, as it seems the case may have been). A standard concrete block's mass is around 17 kilograms (38 pounds). This can vary by species but they can support a lot of weight. 3. For maximum design load you should be safe using 400 psi, that's about 12,000 lbs. This suggests two posts per beam, which would place the posts 24 feet apart. That section discusses calc'ing the necessary post diameter with a given load. What Type Of Wood Can Hold The Most Weight? 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. If you buy through them I earn a small commission. Cutting a span into pieces, though a PITA to walk around a post or two, is sometimes all you can practically do. So you want steel that can handle at least 72,000 psi. I don't know where you are located but around here the 8x8 PT posts are located next to the 6x6 PT posts in all three building supply stores. spacingmore weight means the joists need to be closer together. If a couple of lags and screws make you feel better, GO FOR IT. //specify random images below. Most any time we have tried to work large structural members into a project where any building department is involved, those elements are quickly phased out of the project due to cost. I've looked at larger beams, but there is always a point where increasing beam size gets prohibitive, either because of cost or beam height. The size of the post is determined by the load it has to carry. Same goes for a concrete block wall. Help me pick out a medium size woodstove. How Much Weight Can A 24 Hold Flat/Horizontally? The cost difference between the 6x6 and the 8x8 are minimal. IF I am looking at your drawing correctly, you have a "2x10x16 single" as the ledger against the house. L/d ratio is 13 Allowing for buckling, allowable compressive stress is roughly 475 psi, Area is 30 sq in, so the allowable force in the post is 14,300 lb. I'll be putting 4 posts along the length, each side, and running a beam on top. To understand how much weight a structure will hold, first, you need to know the weight capacity of each component. Calculate the weight of the snow on your roof. As for unsupported, yes, if I have my nomenclature correct. so, what you have listed looks plenty beefy. Here it is, 0100 hrs, and I'm reading this book. Z-section steel is usually used in large steel structure plants. You probably found this (douglas fir-larch), not aspen. Loads must be concentrically distributed evenly over the top of the column shaft. JavaScript is disabled. Theoretically, increasing the span from 11 feet to 14 feet should increase the beam deflection by a factor of 2.5 for similar loading (not exactly the case here, as you're re-loading the beam more to mid-span). Eventually, you will find the appropriate weight capacity of your structure. Is the load centric? Is the 30 kip load Dead and Live load? There is a good chance if you dont know the right answer you may find yourself in some serious trouble. / 196 KG) Polaris 600 Switchback PRO-S (447 lbs. */ 16. Working harder than ever. I am building a supplies loft that is 24' x 24'. This means that it has to have a moisture content below 19%. Is any of this a roof load? By clicking "I AGREE" below, you are giving your consent for us to set cookies. The cost difference between the 6x6 and the 8x8 are minimal. Yes, it was for doug fir. To compensate for increases, you'll need to use 210 joists at 12" o.c. Once you know the unit loads, multiply by the tributary area to each column to determine the load on each column. imagelinks[4]="http://www.ezboardwalk.com/" This should be a pretty simple but I am having trouble finding the right information. The ultimate load is the defined by area of the roof carried by each post. Height (ft) Load Area (sq. Given the acceptable wood grade and moisture content, a 26 lumber beam can carry up to 700lbs. Jake. Beam Weight Calculator / Online Steel Beam Weight Calculator. Most P/T wood is Southern Pine. You can use your mousewheel to scroll though all of the pictures. Yeah I was looking for different ways to strengthen the top for winds but not to sure how to go about it. random_imglink() 2x4 as a post will support about 1000 lbs, that varies a bit by species. I'm concerned that a 4x4" would not provide enough load-bearing capacity, but I have no engineering background. What species of wood? I just wanted a general opinion based on what you guys have built in the past. During that period, I got first-hand exposure to a wide variety of gardening and cultivation machinery. If your 22 is 12 feet long, multiply 12 by 0.44 to get 5.28 pounds. Page created in 1.353 seconds with 39 queries. I wouldn't be concerned about a 4x4. Thanks for the replies. What Size Nail Gun For Fence Pickets - Choose The Right One. vertically. What are your spans? Considering an 8ft x 16ft dock has three 16ft floats it will support 3 x 16ft x 65lbs = 3,120lbs. In America, typical 6x6 pressure treated (PT) are southern yellow pine (SYP). This advertisement will close in seconds. If you chose to use cedar post, its maximum height would be 10 ft. Load Area (sf) per Deck Post. So, I think I'll just go down 3' on the new "deck", though if I hire my neighbor's Bobcat w/ a hole driller, then 4' won't hurt so much. Problem is, I am reading it backwards, as the more I scroll up the more good info I find. Seems you've got a pretty good idea what you're up to. Whether you're a professional or a DIY enthusiast, it's important to choose the right size nail gun for your fence pickets. The processing materials are hot rolled (painted) and galvanized. S, 2023 Physics Forums, All Rights Reserved. My first question based on your new description would be - are you sure about 36" deep footers? Normally all winter we have 5-6" on the ground at all times. I'm in mid-Michigan and code is 42" deep. To fix the weak link, add more strength or change the material. The post is bowing slightly. September 27, 2012. A well-glued wood joint can take roughly 3000-3500 PSI of load before they break. As a result, a 66 will support a greater tributary surface. My searching on the Net gives me all kinds of info, but nothing I can understand; too much engineering language. Is the end attached to the floor? 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. spanning the distance. Because of this, a block used to support a column can bear less weight than the same block used to support a slab. And for the edge side, the weight capacity can go up to 550 pounds. Always use eye protection and gloves when operating power tools. 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). A 6610-foot long treated post weighs about 153 pounds immediately after being pressure-treated, but it will only weigh around 87 pounds after it has had time to dry out. Capacities are per post/column and allow for a safety factor of 5. Change that front double two bye ten to read 16' before you show the thing to the town!! The calculation method is different according to the force mode: 1) Tension action 2) Shear force action 3) Bending moment action 4) Torsion 5) Multiple load combination action Finding the stress and deflection deformation is mainly related to the parameter properties of the load and the section, and then find the formula and set the formula. The farther apart the posts are spaced, both in building width and side wall post spacing, the more load on each post. I could not tell how wide the garage is, perhaps 14 feet or so? One thing to keep in mind, as the length of the stud increases, the weight capacity will decrease accordingly. One thing to remember, wood type and moisture content will greatly affect these weight capacities. Login. Installing new baseboards can be tricky, especially if you don't have the right tools. These numbers were gathered from the internet.>> A piece of yellow pine in an inside dry location can hold 1200 pounds per square inch and a 4" x 4" is really 3 1/2" X 3 1/2" or 12.25 square inches times 1200 is 16150 pounds. I would think you would need to be deeper than us here in MI. Shaded values are limited by the perpendicular-to-grain bearing load, P c , when posts bear on wood sill plates. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. For interior work you'd usually use steel floor jacks designed to support "buildings". Then you show a "2x10x12 double" as the outside beam. 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. Sponsored Links. The formulas and tables list nearly every span imaginable along with all the various design loads. Words. However, the post will typically buckle under much lower load than the axial compression. Click Here to join Eng-Tips and talk with other members! Each 1x6x12 roughly half that. There is no need to guess at loads. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. 48. Stoves: BIS Ultima, Napoleon 1100CP, Woodstock Fireview. A stud used in framing work has a weight capacity of around 1000lbs. Other sizes weigh between 28 and 35 pounds, depending on the weight of the wearer. Just so we're on the same page here's what it looks like with the engineered trusses. You're talking about a huge loss of this thing buckles. var ry=Math.floor(Math.random()*myimages2.length) Its not the best for heavy-duty load-bearing but it is durable and great for lightweight work. 0 Members and 2 Guests are viewing this topic. / 185 KG) Polaris 800 TITAN Adventure 155 (658 lbs. 2023 brings the chance for new things and coming back to old favourites. Shorter lengths can support more weight. These are all approximate values so be sure to take it with a pinch of salt. stick a couple of 2x4s beside it to hold the beam in place if you want. The Forestry Forum is sponsored in part by: If you are considering wooden structure, geometry also plays a big role in this along with the aforementioned factors. Glued and screwed) That is stronger than a 4x4. Step 6 : Multiply the weight of the one foot section by the length of the board. How far can you span a 66 post? One Year Coaching and Mentorship. For headers, the maximum span is 11' 2". If you want to test for moisture content before you buy, pick up a moisture meter. Higher values are safer. It will have a flat roof in it to so there will be 9 2x4's running from beam to beam. Wood used for furniture and for appearance is often of a hardwood (or Pine) variety. Modulus of Elasticity of Wood, Wood Engineering Design Data. Let's break it down, using the large 6-8 person hot tub in my chart above as an example. Are you planning on building a fence? Thanks. For a better experience, please enable JavaScript in your browser before proceeding. 199. Dunno. People have been using wood as construction materials for thousands of years. For example, the length is 20 inches and the width is 15 inches, the area is 300 square inches. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) When you have all the data, take the lowest value and add some safety margin. 6X6 equation: 5.5inX5.5inX500=15,125 Lb/contact (round down to 15,000) 2x2 =. For a general idea, we have rounded up these table types and their weight capacity. = 9.8 kN Note! Let's change that area of 2 square feet into inches. The actual dock will weight by itself 10.5 pounds per square foot. A 3x15x24 isnt that big. It will undoubtedly sag over time. How much weight can my deck support? Step 1. 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. That is what has prompted me to create this blog along with other experienced team members to share the new thoughts, tips, and tricks on woodworking, gardening, and outdoor tools with you. The side beam allowable download is 1,170 lb. 1. Description 8 x 8 timbers are sturdy and heavy-duty. As written, this question is unanswerable. To my astonishment, this one and a half decades of association with the said field has made me acutely interested in this sector. Do not get confused with what weight you might think or want to load the deck with. An 8x8 (even with no load) would sag under its own weight at that distance. Thanks for the input; suggestions/questions are always welcome. We have received your request and will respond promptly. For posts (columns), it is a matter of material, or square inches. Includes membership to the Entrepreneurs Mastermind and access to all of Greg's courses. Here is a list of the wood types that have higher weight resistance. //-->,