Engineered Floor Joist Span Table

Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope.

Engineered floor joist span table.

The l 480 table with a 40 per square foot live load and a 20 per square foot dead load with a depth of 11 7 8 inches will give you spans according to joint weight. Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability. Residential structural design vertical structural forces we were about to start learning about floor joist span tables. Don t worry you won t need to do a lot of calculations in determining the size and placement of the structural framing within your house design.

With these factors the lightest joist will have a maximum span of 17 feet 8 inches. This is the most common as the typical span is 15 feet. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span. Span refers to the length of the i joist.

Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size. Using floor joist span tables. Continuing on from part 1.