Also available for the android os.
Max floor joist span.
True floor joist span calculations can only be made by a structural engineer or contractor.
Dead load weight of structure and fixed loads 10 lbs ft 2.
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.
While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length.
1 psf lb f ft 2 47 88 n m 2.
Joist span and spacing is set by your local building code.
2 grade of douglas fir are indicated below.
Floor joist span tables for various sizes and species of wood.
Live load is weight of furniture wind snow and more.
When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started.
Maximum floor joist span for no.