Floor Joist Deflection Calculator

This calculator has been designed for the sizing of structural floor joists.

Floor joist deflection calculator. Top and bottom chords braced by structural sheathing 6. K series joist deflection and stress analysis calculator. Openings are to be located in the center of the span max opening width is 24 inches 7.

Beam deflection and stress formula and calculators engineering calculators. Select the on center spacing for the joists. The surface floor decking plate sheet or floor boards is referred to as the floor.

See the table below. Note it gives the allowable deflection based on a fractional span quantity so a larger denominator will yield less deflection. 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.

Most lay outs are on 16 so the field is pre selected. If that same joist had gypsum ceiling l 240 the allowable deflection is 0 6. There are six choices.

For a sample calculation of beam deflection let us consider a simple wooden bench with legs 1 5 meters apart from each other at their centers. Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. A floor is deemed to be an elevated rectangular plate or sheet or floor boards supported by equally spaced longitudinal and transverse beams all of which are simply supported at both ends see figs 1 2.

K series joists specifications. Floor joist span calculator 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. This is how far apart they will be.