## how much weight can a 4x4 support vertically

I'd guess it would depend on how many you're going to use, how far apart they would be, and how much weight they support. Therefore the length of the joist 12 divided by 2 =6 , multiplied by the length of the beam 6 = 36. 2x4 on edge - 4" high --> 4" squared = 16 (4x4 behaves as two 2x4 = 32. In other words, the 2 x 4 is laying horizontal like a joist w/ the 4" side vertical. I am going to be building a platform with the goal in mind to be able to hold up 2,500lbs. 900 pounds. - Answered by a verified Home Improvement Expert ... the post will be in the vertical position, used temporary to support a suspended slab. ! I built a playhouse for my kids using four 4x6 posts to support the house. Two 2x4s together are much stronger than one 4x4 and a lot easier to build with. How can I determine the compression and/or vertical weight that a 6 foot 4x6 can support? I am building an observation deck in my back yard,and have poured 4 footings 5′ deep with 1′ being set concrete and 6’x6’x16’PT pine sitting on each poured footing x4plcs. I have 9' height on parts of my deck being supported by 6x6x16' posts buried 4' in the ground with proper footings. THANKS!! Not to be vague but a 4x4 has a lot of vertical support. Continuous and Point Loads - Support loads, stress and deflections ; Board Feet Chart and Calculator - Board feet - volume measurement of lumber; roughly 4 feet in the air and roughly be 45"L x 40"W. Would Pressure Treated 4x4 posts be sufficient to hold up this much weight that high in the air? Re: 4x4 Pressure Treated Posts #698258 12/27/11 12:16 PM 12/27/11 … Im now concerned about the weight of the house on the 4x6 posts. The wood is fir or yellow pine. How much weight can a 10' doug fir 2 x 4 hold if the 2 x 4 is supported at the ends by joist hangers? Multiply 36 by the total load 50 = 1800 pounds. How much weight will a 4x4 post carry? So the other guy saying a 2x6 is stronger than the 4x4 is right on: 2x6 on edge - 6" high --> 6" squared = 36. This appears to be the point at which your beam will deform. Anything going horizontal is a beam. My Question is how much weight will each post support? Each post … I remember awhile ago that one 2x4 can vertically support 1000lbs for like a wall if there’s no heavy wind. would I need to put on supporting cross members? The same calculation can be used to figure the weight for pier (b), however instead of using 3 feet for the beam span you must use 6 feet to adjust for half the span in both directions. 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. total height is 9 feet but will be supported against side bending with a max of 5 … The material you use to support vertically are your posts. The strength of a beam goes up with the square of the depth of the member. So 2x4s should work great, thought I would reinforce them with another on the legs at least for strength. That means that a 2x8, laid on edge so it's 8" high, is four times as strong as a 2x4. For posts typically you'd want 6x6 for heights reaching 10'. HI All,I have a question. Question is how much weight will each post support for heights reaching 10 ' if. Is four times as strong as a 2x4 i would reinforce them with another on the legs at for... The total load 50 = 1800 pounds can support two 2x4s together much... At which your beam will deform horizontal like a wall if there ’ s no heavy wind hold... I need to put on supporting cross members vertically are your posts as strong as a.! So it 's 8 '' high -- > 4 '' high -- > 4 '' side vertical can. So 2x4s should work great, thought i would reinforce them with another on 4x6! 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