American Wood Council Floor Joist Calculator

Both lateral single and double shear and withdrawal capacities can be determined.

American wood council floor joist calculator. Span calculator for wood joists and rafters also available for the android os. Provides users with a web based approach to calculating capacities for single bolts nails lag screws and wood screws per the 2015 nds. Also available for the android os. To achieve these objectives awc contributes to the development of sound public policies codes and regulations which allow for the appropriate and responsible manufacture and use of wood products.

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. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Tr15 acoustic calculator based upon the data and methodologies compiled in american wood council s technical report no. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

The american wood council awc span calculator for wood joists and rafters span calc performs calculations for all species and grades of commercially available softwood and hardwood lumber as found in the 2012 national design specification nds for wood construction supplement. Awc and icc release mass timber buildings and the ibc. On behalf of the industry it represents awc is committed to ensuring a resilient safe and sustainable built environment. Wood to wood wood to concrete and wood to steel connections are possible.

Wood to wood wood to concrete and wood to steel connections are possible. Design values for wood construction with march 2012 and march 2013 addenda. The american wood council s online maximum span calculator for wood joists and rafters offers solutions. The calculator gives you the maximum span for a selected joist species lumber grade exterior exposure on center spacing and live and dead loads.