Floor Joist Dead Load Calculator

Dead load of attic floor when floored 20 lbs.

Floor joist dead load calculator. Live load is weight of furniture wind snow and more. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. The user enters the member geometry adds loads holes and other relevant data and then selects a product for analysis.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Storage space dead load of partitions 20 lbs. Most lay outs are on 16 so the field is pre selected. Floor joist span tables for various sizes and species of wood.

1 psf lb f ft 2 47 88 n m 2. 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. It is simple to use yet flexible enough to analyze a variety of common applications. Bc calc performs engineering analysis to help our customers size beams joists columns studs and tall walls for their building projects.

Of floor area dead load of partitions 20 lbs. There are six choices. 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. Dead load weight of structure and fixed loads 10 lbs ft 2.

This is how far apart they will be. Dead load of first floor ceiling not plastered 10 lbs. The highest is a fully loaded floor 70 pounds per square foot. Span calculator for wood joists and rafters available for the iphone.

Span calculator for wood joists and rafters also available for the android os. Maximum floor joist span for no. Of floor area dead load on second floor 20 lbs. 2 grade of douglas fir are indicated below.

1 ft 0 3048 m. Span calculator for wood joists and rafters also available for the android os. The lowest is a plain ceiling joist with no storage 10 pounds per square foot. In this case your joists are adequate to support a 30 psf live load and 10 psf dead load.

In the example the joists have a spacing of 16 inches and a span of 11 feet 2 inches.