Shed Roof Span Tables

Joist and rafter span tables.

Shed roof span tables. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. For standard shed roof rafter spacing see rafter span chart.

For instance 2 grade 2x4s at 16 on center will span just over 9. R cb150 16 beam span table used w 3600 width of frame rafter span χ 6410 fascia beam span the cb150 16 beam achieves the 6000mm span for the fascia beam and can be used for the rafters. View joist rafter tables. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters.

The tables below give maximum spans for rafters and beams. For lesser grades spans should be shorter. There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. Span tables use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

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