2x12 Floor Joist Weight Capacity

Our joist span charts are for wood joists with a maximum dead load of 10 pounds per square foot and a live load of 40 pounds per square foot.

2x12 floor joist weight capacity. Joists that are closer together can support more weight which allows the joists to span a longer distance than joists spaced further apart. 1 psf lb f ft 2 47 88 n m 2. Span calculator for wood joists and rafters also available for the android os. 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.

Live load represents the weight of furniture snow etc. Dead load weight of structure and fixed loads 10 lbs ft 2. Dead load is the weight of the structure and any fixed items. Maximum floor joist span for no.

Floor joist capacities max working load 3 0 kn m 2. But larger is not always better when builders are constructing a home or adding a room addition. Floor joist capacity max working load 2 0 kn m 2. My question is whether the floor joists can handle this weight.

Floor joist capacity max working load 3 0 kn m 2 as pdf file. 2 2x12 2 2x12 3 2x10 12 2 2x4 2 2x6 2 2x6 2 2x8 2 2x10 2 2x10 2 2x12 3 2x10 3 2x10 design criteria. Common joist spacings for 2 by 10 joists and other dimensional lumber sizes are 12 16 and 24 inches. Hem fir 2 beam members with a live dead loading of 40 10 psf.

This chart is for basic reference only. Live load is weight of furniture wind snow and more. F dept development services building division shared building forms floor joist beam doc. The living room floor is over the garage and is supported by 2x10 joists with 16 spacing.

Also available for the android os. 1 ft 0 3048 m. Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity. If you have any questions.

Floor joist capacities for timber grade c 18 c 24 and c 30 joist center space ranging 300 to 600 mm are indicated in the diagram below. 2 grade of douglas fir are indicated below.