x 12 in. A 2x8 up to 12 feet; 2x10 to 15 feet and 2x12 to 18 feet. A stack For example, 4 x 6 lumber is not on the list, but you can simply choose 2 x 6 and double the value. An 8-foot length of 24 that can support 1,000 pounds vertically will sag unacceptably under 200 pounds vertically without any support in the middle. Im going to use axels from a truck to get it to roll. All other variables being equal, H-beam rods are the strongest design. A double 2x12 beam can span 12 feet; a (2) 2x10 can span 10 feet and so on. A double 210 or 2- 210 header can support 5000 pounds of total weight/ load when spanning to 4 to 6 feet, 3760 pounds weight when spanning to 8 feet, 3010 pounds weight when spanning to 10 feet and can support 2510 pounds of total weight when spanning to 12 feet. That means we've excluded the use of I-joists and open-web truss joists (these are engineered joists that span longer than solid lumber joists). 210 weight depends chiefly on the length of the board, the moisture content of the wood, and which tree species the lumber was made from. In general, a 24 can hold a horizontal load of around 20 to 40 pounds per linear foot if the weight is evenly distributed. Mr. Gray has over 25 years of experience in the roofing industry, with training and practical experience in roof safety, roof inspection, roof condition assessment, estimating, roof design & specification, roof installation, quality assurance, roof maintenance & repair, and roof asset management. For the same size floor joist and spacing, if you need to reach about 13 feet, you can use a stronger wood like No. Wiki User. 4 inch I-beam | 10u2032 Long | ASTM A36 Grade When used with Webb 1,500 pound beam trolley model 10711 the maximum load is 1,500 pounds. Does it have two supports or several? How do I connect these two faces together? The shorter the column, the greater the weight it will support. how much weight can a 2x10x8 support. Jun 28, 2007. Depending on various factors, the maximum span for a 28 floor joist Related Products. Use The Engineering ToolBox Sketchup Extension to insert construction lumber in your 3D models. This means that it can only bear force in one direction. Can a 6x6 post be used horizontally to support the walls of a shed? On average, you should expect your Jeeps roof rack to hold between 50 pounds and 200 pounds of cargo, but it varies depending on your particular year and model Jeep and the type of roof rack you have. More information about this error may be available Weight supported by a double or triple wood header on two 4" x 4" posts: 1 inch = 25.4 mm 1 lbf x 8 ft. Longitudinally it will support 662 to 998lbs as a column, or 7061lbs sheathed and blocked in a wall as a stud before As the drawer will be supported on one side by the plywood and the other by the MDF, I'm getting a little nervous that it won't be able to support the weight of ~150-200 records so around 17-20lbs. Spruce). Common Approaches. How can I calculate the maximum load a rectangular horizontal wooden beam of dimensions L x H x W can safely support if the beam is adequately supported at both ends? Putting a hot tub on the deck and want to know how How much weight can a concrete patio hold? A double 26 or 2- 26 header can support 2250 pounds of total weight when spanning to 4 feet. The data we've used for this calculator came from the 2021 Design Values For Joists And Rafters by the American Wood Council. i have a bunch of them if you would like to borrow them. Continue with Recommended Cookies, ByJack Gray, Roof Online Editor Last updated October 8, 2022. It certainly wouldn't hurt to offer a little moral support with a 4x4 placed vertically under the middle of the steps run from underneath. One 2x12 can support about 180 lbs. If everything seems to be going well, you have obviously overlooked something.. ..-- I'd want 2-3 buddies there, Roger that and a cellphone and a quart of Mercurochrome. A header is a horizontal beam generally made of timber that provided along the opening in exterior wall and interior load bearing wall in full length for doorway, window, skylight or stairway. I beams are resistant to aging and are easily adaptable to structural additions and modifications due to their composition. We typically space floor joists 16 inches apart (measured from the centers of the joists). 2 Douglas Fir-Larch. 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. The span of the beam will determine how much weight it can support. How to show that an expression of a finite type must be one of the finitely many possible values? Designation (Width x lbs/ft)Nominal Size Depth x Width (inches x inches)Allowable Uniform Load (lb)Span (ft)W8 x 158 x 410500W8 x 188 x 5 1/213500W8 x 218 x 5 1/21620011 more rows. I am sure you can do this but think every bit through. In that case, you can use this formula to determine the joist spacing that will suit your preferred number of joists to support your subfloor material: In this calculator, it is worth noting that we are only considering natural solid lumber joists. What is the maximum span for a 2x12 floor joist? Use a joist span table such as those found in the Resources section to determine the maximum 2-by-10 joist spans for other species and lumber grades. I don't think I'd play, "You Bet Your Mill" on two 2x12s without some serious bracing. When supporting x 8 ft. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Jack Gray is a principal roof consultant and vice president at theMoriarty Corporation, an award-winning building enclosure consultant firm founded in 1967. Multiply 28 pounds by 0.096354 to get 2.6979 pounds. If there is no strong wind, a 2x4 measuring at least 8 feet can support at least 1,000 pounds vertically. When supporting joists that span 12 feet with no overhang beyond the beam, a double ply beam can span in feet a value equal to its depth in inches. A 10-foot-long 26 pressure treated lumber board weighs around 40 pounds right after being treated. At 16 inch spacing, 15 feet 2 inches and 13 feet 3 inches at 24 inch spacing. how much weight can a 2x10x8 support. The cross section of the H beam is stronger than the cross section of the I beam, meaning it can bear a greater load. A double 28 or 2- 28 header can support 4690 pounds of total weight/ load when spanning to 4 feet, 3130 pounds weight when spanning to 6 feet, 2660 pounds weight when spanning to 8 feet and can support 2130 pounds of total weight when spanning to 10 feet. The floor is 3/4 flooring on 24 in deep One 2x12 can support about 180 lbs. a 20' 2x8 will not carry very much load at all. The header for a window & door is seems like a bridge that transferring the weight above it to the floor and foundation below. Typical weights for green, kiln dried and pressure treated lumber boards are indicated in the tables 2x10x8 lumber 2 x 10 2x10x8 pressure treated 2 x 10 x 8. Different types vary in looks, price, availability, need for maintenance, and resistance to rot, decay, and insects. The amount of weight that a 44 can support horizontally will depend on the type of wood you are using, the grade of wood, and the length of the board itself. Wiki User. Rockwell Typeface Characteristics, Product Code: 030050 OSHA approved Scaffold Plank DI-65 Grade-stamped Southern Yellow Pine CALL FOR VOLUME DISCOUNTS! To determine 210 weight, you need to know what kind of wood the 210 is made from. The actual dimensions of a 210 are 1.5 x 9.25. Copy. apartamentos en alquiler hato rey; is trelegy available in mexico; smocked christmas romper Common Measurement (T x W): 2-in x 10-in. A 2" 10" floor joist has a span of 20 feet at 12-inches on-center spacing. It does not mean that a 300 lb. How much weight will a 2x12x20 support? What is the maximum span for a 2x12 floor joist? This may seem light, but this is 50 pounds over each and every square foot of floor space. I use working stress, not ultimate strength. Increasing the total weight on the floor to 4,480 pounds, however, results in a live load of 40 psf, which is beyond the floor's load capacity. and the actions you performed just before this error. x 8 ft. for pricing and availability. One of the strongest steel beams on the list, H-beams, is made up of horizontal elements, while the vertical beams act as the web. Click to see full answer. Why is this the case? The flanges and web create a cross-section that mimics the shape of the letter H and are popular in construction or civil engineering projects. Thus, a double 210 or 2- 210 header is meant to hold up to 3760 lb weight for span upto 8 feet. Use Current Location. But a 12-by-36-inch piece of -inch plywood can support 50 pounds easily. Jun 28, 2007. How much weight can a 24 hold or support horizontally? In general, a 24 can hold a horizontal load of around 20 to 40 pounds per linear foot if the weight is evenly distributed. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Roller, pinned, and fixed connections are the three most common types of supports in beams and structures to connect them to its foundation. 166.5 is 1/10.3784 of 1,728, or 9.6354% of a cubic foot (166.5/1728 x 100 = 9.6354). Copy. 3) Species: Some species (like Douglas Fir-Larch) can support about double other species (like Southern pine.) If your 210 is 14 feet long, multiply 14 by 2.7 pounds to get 37.8 pounds. 1/2" 4x8 Fire Retardant Ply 46.4#/SHEET 1450#/MSF. Web component is responsible for withstanding against shear stresses while flanges put resistance against bending. Determine which way to place beam for maximum strength. These documents are for uniformly loaded lumber in a repetitive installation. A 10 foot long 24 carrying a uniform load of 40 pounds per foot (400 lbs total load) will have a maximum bending moment at the center of the span of 1000 ft-lbs. As the thickness of the plywood increases, the ability to support more weight also increases. Copyright 2014 - 2023 Roof Online. A single #2-SP 210 beam can span between 4'-0" and 7'-0" if the joist span is 18' and 6' respectively. Making statements based on opinion; back them up with references or personal experience. x 12 in. how much weight can a 2x10x8 support. The answer is 9 Is the load at a single point in the middle of the joist? It is also good to know what factors may affect the span of a 28. http://www.southernpine.com/app/uploads/SS_7-12L.pdf, http://www.southernpine.com/app/uploads/SS_13-14L.pdf, We've added a "Necessary cookies only" option to the cookie consent popup. Table 2 AXIAL COMPRESSION LOAD CAPACITY FOR 4x4 and 4x6 COLUMNS Column Capacity (lbs.) A board with the same dimensions made out of Sitka Spruce only weighs around 8 pounds. How much weight will a 2x12x20 support? Plywood with a 1/4-inch thickness made of fir can only support five pounds. Any insight would be great. herriman city youth council; shinedown tour 2021 opening act; golden gloves archives. 2 Douglas Fir-Larch. Here you can operate by assumptions that there is no wind or it is not as strong. But that could mean a more costly floor system. It is about 2,100 lbs. You will probably need a beam running I weigh 275 and any one of my stairs will hold my weight. Next select a length in feet and inches. (feet) Weight Supported (lb) 2 x 2" x 6". ft. of footprint for that whirlpool tub. How much weight can a 24 hold or support horizontally? x 12 in. Column Select Structural No. And there you go, a 14-foot Ponderosa pine 210 weighs 37.8 pounds. Exposure to excessive moisture for tree sawn and engineered lumber will also temporarily increase the density (water log). Read full bio. Is it a bug? But first, generally, how far can a 28 span without support? per the A 24 is much less strong horizontally. But Subtract scale reading from GVW and that is the load you can legally carry. Step 1: Determine the wood type. A 12-by-36-inch piece of plywood that is -inch thick will only support about 5 pounds before it Douglas fir 2-by-10 joists graded as "Structural Select" allows joist spans up to 21 feet for a live load of 30 pounds per square foot when spaced 12 inches apart, 19 feet 1 inch for 16 3/4" 4x8 Fire Retardant Ply 70.4#/SHEET 2200#/MSF. 3/4" 4x8 Fire Retardant Ply 70.4#/SHEET 2200#/MSF. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? On the subject of planking. Yes, the ramps sag, but they've not broken yet. Consequently, how far can a 2x10 beam span without support? HomeX virtual experts will assess your issue (for If you really want to know what YOUR truck can carry, legally. Let's Jun 27, 2016 #4. The board will return (almost) to its original weight as it air-dries during the weeks or months after treatment. How to attach horizontal bar to a wooden wall? How much weight can plywood actually support? Load bearing walls those that carry the weight of joists and trusses require larger headers than non-bearing wall. Let's Get It Fixed! x 8 ft. That load is too concentrated for a 12' span supported only at the ends. Share Improve this answer Follow answered Nov 15, 2017 at 5:19 LRU 51 1 1 7 How can I calculate the maximum load a rectangular horizontal wooden beam of dimensions L x H x W can safely support if the beam is adequately supported at both ends? You have to remember the load position for this issue. Model # 2P021012S4. An example of data being processed may be a unique identifier stored in a cookie. Roof Online participates in the Amazon, Home Depot, and Roofle affiliate programs and may earn commissions from purchases made through links on our website. The 2009-10-16 22:34:07. The same board only weighs around 23 pounds after it has had time to dry out. IMPORTANT NOTE: Lumber & Deflection Calculator for Square Tubing. So 2.7 pounds is the weight per foot of a 210 made from Ponderosa pine. An air-dried 24 x 8-foot-long lumber board made out of Douglas Fir weighs about 10 pounds. The weight of pine, green oak, and pressure treated can vary greatly from board to board. You need to factor a safety factor into your calculations. At CivilSir, we share all the information related to civil engineering. x 12 in. Almost x 12 in. google span calculators to give you a better idea. Could five 200-pound guys stand on the planks safely? This can be done to reduce decking seams or just for appearance. Just another site. Model # 2P021016S4. And a 12 foot span ( garage is 12 feet wide ) is there a way/formula to figure out how much a 2x6 standind on end with the weight in the center can hold. To learn more, see our tips on writing great answers. For example, a properly designed office floor can support 50 pounds per square foot. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? Lets say youre trying to figure out the weight of a 210 made out of Ponderosa pine (also called western yellow pine). You could try to figure out what the live loads and dead loads for the bed are and go from there. You will probably need a beam running This answer is: Study guides. And to support the pipe. The density and weight of lumber varies with the water or moisture content in the wood. The weight of 2x10 lumber is approximately 3.37 pounds per linear foot. Use The Engineering ToolBox Sketchup Extension to insert construction lumber in your 3D models. Table: 210 Weight by Wood Type and Length, the way the moisture content of wood is calculated, Weights of Various Woods Grown in the United States, Wood Handbook, Wood as an Engineering Material. Wood header provide structural support in wood frame construction. How much weight can a 24 hold or support horizontally? If we can get lumber with a length equal to or greater than our floor's length, we can get two pieces of that lumber for our end joists. Length* Size* 2x2 2 x3 2x4 2x6 2x8 2x10 2x12 1x2 1x3 1x4 1x5 1x6 1x8 1x10 1x12 *Nominal Minimum Dressed Sizes: Nominal Size Actual Size Metric Equivalent Technically it can hold the weight, but it will sag three inches toward the middle, which is much more than acceptable. Additionally, a 500 Internal Server Error To compare built-up wood beams, I multiply beam width by beam depth squared, and then I divide the product by 6. S KH: 41.02.3607/TP/KH A 210 is 166.5 cubic inches per foot. Your average yellow pine 4x4x8 will be able to hold up to two tons (4,000 lbs), with the correct vertical support beneath it. When used as a post, the same 4xd74 can support up to 6,000 PSI and even more if properly braced. You can also calculate the volume of lumber by measuring the length, width, and thickness in inches and If it was 7 inches thick, it could support 1,194 psi, and if it was 12-inches thick, it could support 1,563 psi. In this article you know about how much weight can a double 26, 28 & 210 header support load bearing wall that will help you in better understanding and to figure out or estimate of header size and their depth and help in important for you to use the right size header. On average, you should expect your Jeeps roof rack to hold between 50 pounds and 200 pounds of cargo, but it varies depending on your particular year and model Jeep and the type of roof rack you have. H-beam rods are more difficult to machine, so they are often more expensive. In fact, each 2x10 will support 1,200 lbs. As you may have seen on our second deflection formula, the loading on our flooring is directly proportional to the deflection. Here you can operate by assumptions that there is no wind or it is not as strong. mainhi.law@gmail.com, kmunion@phaplynhadat.vn, Dch v chuyn nhng quyn s dng t trn gi, Dch v hp thc ha nh t trn gi uy tn ti TP. assuming worst case - load concentrated at center, for commonly available types of wood (e.g. In fact, each 2x10 will support 1,200 lbs. On the other hand, floor joist systems can also use 2" 4" and 2" 6" for small-sized floor areas. Keep in mind that the thinnest piece of plywood that you can buy is usually 1/4-inch. Keep in mind that the thinnest piece of plywood that you can buy is usually 1/4-inch. Premium #2 and Better Douglas Fir Lumber Every piece of 2 in. Private Vatican Tours Early Morning, It does not mean that a 300 lb. Related Products. The header is usually made out of dimensional lumber installed on its edge. How do I stop my toilet flapper from closing too fast? How to calculate the influence on load bearing on beams cut/notched for connections? Is there a substitute for septic systems? It only takes a minute to sign up. Just so, how much weight can a floor joist hold? rev2023.3.3.43278. 4) Grade: Likewise as for species. 2 x 10 are the nominal dimensions of the board. I-beam: An I-beam is not made by welding or riveting sheets of metal together and is only one piece of metal throughout. The values given in the table are meant to provide a general idea of typical 210 weights, and should not be used if precise values are needed for critical engineering calculations. The thickness is the most important part. The first deflection formula we need determines the allowable sag of a floor joist using a ratio. Thus, a double 26 header is meant to hold up to 2250 lb weight for span upto 4 feet. This is because when you find them in the store, they are usually freshly-treated, or have only been drying for a couple of weeks.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'roofonline_com-large-mobile-banner-2','ezslot_6',869,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-large-mobile-banner-2-0'); The water weight added to the wood during the pressure-treating process leads to freshly-treated boards weighing up to 75% more than the weight of untreated boards. How to estimate the load bearing of MDF plates on a wood/beam construction? Each 2x10 will support 1,200 lbs. A 10-foot-long air-dried 210 made out ofDouglas Fir(coast type) will weigh about 33 pounds. High quality lumber from the Inland Northwest region in North America. How much weight will a 2x12x20 support? Since a 210 is 1.5 inches by 9.25 inches, a one-foot-long 210 will have a volume in cubic inches of 1.5 inches x 9.25 inches x 12 inches, or 166.5 cubic inches. If planks were laid on those stairs then at least 3 stairs would come into play if 600 pounds was placed over one stair. No two pieces are the same. SPF Square Edge Lumber. What is the breaking strength of a 24? The strips will fail before the wall. Weight Of A Douglas Fir 2x10x8 Douglas fir is a good lumber option for projects you are trying to paint, but it does not hold stain well and has To be clear, spans are measured as "clear spans". That load is too concentrated for a 12' span supported only at the ends. How much weight can a concrete patio hold? Let's Get It Fixed! The hole through the center is only 4in and Im not sure if I could get a 4in pipe through there. 2-in x 10-in x 8-ft Fir S4S Kiln-dried Lumber Model # WF210TOPCHC08 Find My Store for pricing and availability 708 Actual Dimensions: 1.5-in x 9.25-in x 8-ft Wood Species: Fir Dressing: S4S Drying Method: Kiln-dried 2-in x 10-in x 14-ft Fir S4S Kiln-dried Lumber Model # WF210TOPCHC14 Find My Store Fixed: Supported at both ends and fixed to resist rotation. For example, a 6-inch pad with a compression strength of 700 psi can support 1,105 psi. Copyright 2021 by KM UNION LAW FIRM. Can airtags be tracked from an iMac desktop, with no iPhone? If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Im thinking I want to support it with a 3in schedule 80 steel pipe. For example, http://www.awc.org/codes-standards/calculators-software/reversecalc, http://www.awc.org/codes-standards/calculators-software/spancalc. You can span a 2" 8" floor joist as far as 12 feet using No. Summary your request. Usually shear governs for short spans, and bending governs on longer spans. The maximum 24 load capacity is 40 pounds or 300 pounds horizontally but speaking on the vertical panel it can hold much greater capacity as compared to how much Let's Which wood is it made from? 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. Which wood is it made from? In equation form, we express that as: We can also divide LLL by 360360360, 480480480, 600600600, or 720720720, depending on what loading combination you wish to consider in your calculation or how much deflection you want to allow. What's the maximum amount of weight you can attach to a wall with command strips? Calculating header size is complex as depending on many factors such as:- the length of the window or door opening, the combined weight of the floors, walls and roofs above, the building width, the snow load in the area, whether its a load bearing wall where joists, trusses and rafters rest or a non-bearing wall to which joists, trusses and rafters run parallel, whether its an exterior or interior bearing wall and what species of wood youre working with. We then simultaneously use that equation with this maximum allowable deflection formula based on the floor joist material composition, its cross-section, and the load it supports: Learn more about beam deflections by checking out our beam deflection calculator. Spaced at 12 inches, the joist may only span 16 feet 8 inches. 2x8 are not used for floor systems. 1335. Save my name, email, and website in this browser for the next time I comment. google span calculators to give you a better idea. This appears to be the point at which your beam will deform. The amount of weight that a 44 can support horizontally will depend on the type of wood you are using, the grade of wood, and the length of the board itself. Premium #2 and Better Douglas Fir Lumber Every piece of 2 in. The server encountered an internal error or An air-dried 24 x 8-foot-long lumber board made out of Douglas Fir weighs about 10 pounds. A fourth type, not often found in building structures, is known as a simple support. Click to see full answer. The Features. Step 2 : Look up the density of the wood. 2-in x 10-in x 16-ft Southern Yellow Pine Lumber. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. will provide more support, strength, and improved floor assembly compared to 2x4 of the same grade and species. You can also calculate the volume of lumber by measuring the length, width, and thickness in inches and Is it equally distributed? Here's a site to estimate deflection of 2x2x1/8" tubing. Click to see full answer. The choices on the list are kiln dried Any insight would be great. @ LRU I think youve calculated the load at which point the beam will yield or fail in bending. I weigh 275 and any one of my stairs will hold my weight. We'll then use this equation to find the maximum allowable span: Note that this is the most basic way to find how long a floor joist can span. You can span a 2" 8" floor joist as far as 12 feet using No. Your calculation shows nearly 14 sq. vegan) just to try it, does this inconvenience the caterers and staff? Depending on the species, grade, and spacing, a 28 may span between 7-1 and 15-0. How to tell which packages are held back due to phased updates. Just so, how much weight can a floor joist hold? How long can floor joists be without support? A live load of 60 pounds per square foot demands more support and shorter Depending on the species, grade, and spacing, a 28 may span between 7-1 and 15-0. How to Calculate Lumber Weight The formula for the weight of lumber is simply density x volume. ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function, Follow Up: struct sockaddr storage initialization by network format-string, About an argument in Famine, Affluence and Morality. All rights reserved. You will probably need a beam running perpendicular to the 20' 2x8 somewhere in the middle to seperate the span to 2 10' spans to be able to use the space above. Two would have worked fine but used the third as security. On the other hand, we can install the floor joists closer to each other so more of them can support the flooring material. Weight supported by a double or triple wood header on two 4" x 4" posts: 1 inch = 25.4 mm 1 lbf A 12-by-36-inch piece of plywood that is -inch thick will only support about 5 pounds before it Subtract scale reading from GVW and that is the load you can legally carry. It is also good to know what factors may affect the span of a 28. center load. Beams are designed based on NET CLEAR distance between supports. police report lookup by case number; 30 Junio, 2022; how much weight can a 2x10x8 support . Why are physically impossible and logically impossible concepts considered separate in terms of probability? in the server error log. How do I reset my Samsung ice maker rsg257aars? Guest PostContact usPrivacy policySitemap. Commonly termed an I beam because of its shape, beams provide great load bearing support when used horizontally or standing as columns. I beams are frequently used in constructions because they are simply functional. FWIW: I have a pair of 2" rough-sawn 2" X 12" cottonwood planks that are 9' long, with aluminum "ramp ends" bolted to one end of each. can i use dmv kiosk with smog check; how much weight can a 2x10x8 support . Thus, a double 28 or 2- 28 header is meant to hold up to 3130 lb weight for span upto 6 feet. An 8-foot length of 24 that can support 1,000 pounds vertically will sag unacceptably under 200 pounds vertically without any support in the middle. Doors in a load-bearing wall that holds the weight of the house, created by beams and trusses, need a larger header than those in non-load-bearing walls. Manage Settings Say we want to equate the second deflection formula to =L/240\delta = L / 240=L/240. These are the most common wood types used in construction in North America. As a rule of thumb, we use 240240240 for a combination of dead and live loads our floor will have to carry. how much weight can a 2x10x8 support. Pressure-Treatment: Pressure-treated 210s can be remarkably heavy when you buy them. When supporting How long is the joist? M s thu: 0316813756, Phng B.01 tng 14, Ta nh HM Town, 412 Nguyn Th Minh Khai, Phng 5, Qun 3, TP.HCM. a regular, clear, white pine 2 x 4 stud grade can support static load of about 450 pounds for a 4' span and about half that for the 8' span with the lowest fiber stress capacity of 900psi.

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