Also available for the android os.
2x4 floor joist span.
While every effort has been made to insure the accuracy of the information presented and special effort has been made to assure that the information reflects the state of the art neither the west coast lumber inspection bureau the american wood council nor its members assume any responsibility for any particular design prepared from this online span calculator.
2 grade of douglas fir are indicated below.
Doesn t interfere with plumbing or wiring in joist bays.
The depth or height of your floor joists depends on how far they can span without sagging.
Check out this free calculator or consult floor joist span tables for what you are doing.
Shorten the span maybe to 5 and put them 12 oc or like mac said 4 16 oc.
I personally think it will be a bouncy floor.
The problem you ll have with trying to use 2x4 s as floor joists is that most span tables don t include 2x4 s.
Span calculator for wood joists and rafters also available for the android os.
This means that it will be hard for you to convince your planning department to approve your plans without some sort of proof that the 2x4 s are adequate.
Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.
If you use awc calculator 2x4 can span 6 2 with l360 deflection for decks 40lb ll.
Most spans are typically 10 to 12 feet so we typically use 2x8 or 2x10.
Dead load weight of structure and fixed loads 10 lbs ft 2.
This calculator shows 2x4 s limited to 5 8 span for eastern white pine.
There are online span calculators available that tell you the maximum span for.
All floor joist tables start with 2x6 lumber.
Also the type of lumber is important.
Joist span and spacing is set by your local building code.
Bottom edges of joists must be free of wires pipes and ducts.
Live load is weight of furniture wind snow and more.
Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.
1 ft 0 3048 m.
View joist rafter tables.
1 psf lb f ft 2 47 88 n m 2.
Maximum floor joist span for no.
