What is the max load on a 2×8 floor joist?
In some cases, a 2×8 can support a dead load of 20 pounds per square foot and a live load of 40 pounds per square foot. A total load of 60 psf is being applied. For a 2x8x10, the total weight per linear foot would be 600 pounds.
Can 2×8 be used for floor joist?
When joists are spaced at 16-inch intervals, a good rule of thumb is 1.5 times the depth of the joists in feet. It is common for a 2 x 8 to span 1.5 x 8 feet, or 12 feet.
How much weight can my floor joists support?
At least 40 pounds per square foot, joists must be able to withstand the live load. A reduction in span from 12 feet to 11 feet 11 inches would be required to safely support heavier loads, as shown by the table of 50 pounds per square foot live load/10 pounds per square foot dead load.
How do you strengthen a 2×8 floor joist?
Make a supporting mid-span beam or wall beneath the wobbly floor joists in order to strengthen them from the bottom up. Your joists will no longer wobble if you use jack posts or 6×6 posts and 2×10 or 2×8 beams perpendicular to the joists.
How far can a triple 2×8 beam span?
A triple 2×8 deck beam can span up to 10 to 11 feet when loaded with 50 psf (40 psf live load + 10 psf dead load) and deflected by a maximum of L/360, according to general rules and guidelines.
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