Floor Joist Wood Beam Span Calculator

On longer spans the beam may require much more bearing space as indicated by this table.

Floor joist wood beam span calculator.

According to the 2012 irc codes any beam joist or header shall never have a bearing of less than 1 1 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. Engineered wood products ewp span and size charts for bci joists. Span tables for deck joists beams and flooring giving.

This means that some values are slightly more conservative than span tables from other sources if those do not include the amended guidance. Joist calculator tutorial you. Floor joist span tables calculator. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Let s expand our house beyond that 17 2 span capability to 24 feet wide. So the house dimensions will now be 24 x 13. Calculate the span for floor and ceiling joist with this free and simple online calculator. Deck joist span chart twhouse org.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Span calculator for wood joists and rafters also available for the android os. Span tables for domestic floor joists to bs 5268 7 1 note. Our floor joist span tables are based on loadings given in the newer amended version of bs 6399 1.

Anything 5 and above we always at least double cripple. Designing with wood beam span tables. To use the joist span calculator below first select the species of lumber you will use for your construction project from the drop down list. Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.

Beams of more than one ply must be fastened together with either nails or bolts. The spans for joists according to the code is far more than we find acceptable. Wood beams maximum span calculator for. The resulting spans are less than the 2012 irc codes but they are to our standards at scott s framing.

Floor joist span calculator. Next use the buttons in the table to select the maximum length in feet or metres in brackets that your floor joists must span.