WebThe maximum distance a 2×6 can span, according to the 2018 IRC, for a floor joist, is 12’-6”, ceiling joist 20’-8”, rafter 18’-0”, deck board 24”, deck joist 9’-11”, deck …
WebCodes & Standards. Span Tables. Overview. Resources provide a simplified system to determine allowable joist and rafter spans in one- and two-family …
WebUse the span tables in the links below to determine the maximum allowable lengths of joists and rafters. These tables provide maximum spans for the #2 …
WebSPFA has created 46 simplified maximum span tables based on common load conditions for floor joists, ceiling joists, and rafters for selected visual and …
WebJan 18, 2024 · To find the span of a wood beam, let's say a 2"×8" beam (with actual measurements of 1.5"×7.5" ): Determine your wood beam's modulus of …