How much can a 2x12 support?
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business and finance
civil engineering industry
One 2x12 can support about 180 lbs. per foot or about 2,100 lbs.
People also ask, how far can a 2x12 span without support?
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 double 2x12 beam can span 12 feet; a (2) 2x10 can span 10 feet and so on.
Also asked, what size lumber can span 20 feet?
Re: 20 foot clearspan beam size In that case, you need something like a 12-16" GLULAM or LVL to span the 20' and can use simple 2x8-10 dimensional lumber 16"OC as floor joists.
In fact, each 2x10 will support 1,200 lbs. To be clear, spans are measured as "clear spans".