1 psf lb f ft 2 47 88 n m 2.
Floor joist single point load.
But larger is not always better when builders are constructing a home or adding a room addition.
When a bend check load is specified the local bending.
In this case your joists are adequate to support a 30 psf live load and 10 psf dead load.
A floor joist appropriately selected to span 10 feet with an l 360 limit will deflect no more than 120 360 1 3 inches under maximum design loads.
Live load is weight of furniture wind snow and more.
2 grade of douglas fir are indicated below.
Drywall attached to the underside of this system is not expected to crack when the floor joist system deflects 1 3.
The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example.
Drywall attached to the underside of this system is not expected to crack when the floor joist system deflects 1 3.
1 ft 0 3048 m.
Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor.
Maximum floor joist span for no.
A floor joist appropriately selected to span 10 feet with an l 360 limit will deflect no more than 120 360 1 3 inches under maximum design loads.
The span table for a 30 psf live load 10psf dead load floor indicates a required fb value of 1 315 and a minimum e value of 1 800 000.
Moment by use of an add load.
Dead load weight of structure and fixed loads 10 lbs ft 2.