2x6 Floor Joist Max Span

Spans in this table were derived from the irc table r502 3 1 2.

2x6 floor joist max span.

Floor joist table joist size joist spacing maximum span. 2 grade of douglas fir and maximum span floor joists imperial units engineering toolbox resources tools and basic information for engineering and design of technical applications. Article may contain affiliate links. Publications calculators software building codes fire safety span tables decks weights and measurement codes standards calculators software.

Section r507 5 notes that deck joists can cantilever up to 1 4 of the joist span. 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. Building codes for residential decks only require 40 psf. But you ll notice when you look at the portion of the span table for joists with cantilevers that the joist span for decks with a cantilever is often less than the span for the same sized joist without cantilevers.

12 4 2 2x4 2 2x4 2 2x4 2 2x6 2 2x6 2 2x6 2 2x6 2 2x8 2 2x8 j 5 2 2x4 2 2x4 2 2x6 2 2x6 2 2x6 2 2x6 2 2x8 2 2x8 2 2x10 o i 6 2 2x4 2 2x4 2 2x6 2 2x6 2 2x6 2 2x8 2 2x8 2 2x10 2 2x10 s. As an amazon associate i earn from qualifying purchases. Beam span maximums are based on a maximum anticipated live load. For conventional guardrail post installation bolted to the side of the framing larger framing will provide more strength in the rails.

2x6 joists should only be used on ground level decks that do not require and will not provide for any guards. Search is the most efficient way to navigate the engineering toolbox.