Using floor joist span tables.
Floor joist span table.
Continuing on from part 1.
Floor joist span tables for various sizes and species of wood.
1 psf lb f ft 2 47 88 n m 2.
Residential structural design vertical structural forces we were about to start learning about floor joist span tables.
1 ft 0 3048 m.
Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall.
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.
Dead load weight of structure and fixed loads 10 lbs ft 2.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size.
Maximum floor joist span for no.
Span calculator for wood joists and rafters also available for the android os.
This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.
2 grade of douglas fir are indicated below.
View joist rafter tables.
Also available for the android os.