6x6 Beam Span Chart
Repetitive member fb design values are used in design when three or more load sharing members such as joists rafters or studs are spaced no more than 24 apart and are joined by floor ing sheathing or other load distributing elements.
6x6 beam span chart. Dimensional lumber deck beam span chart. Numbers in blue are joist spans beam to beam or house to beam. Refer to the deck beam span table below to assist in determining the maximum span of a given beam between posts.
Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. A redwood 4x6 beam should span no more than 6 between supporting posts. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.
Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. A 2 2x10 can span 10 feet and so on. Six by six beams can be milled from almost any wood species but only a handful of commonly milled species are readily available.
Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. Beam may be solely responsible for carrying a specific design load. The numbers in gray indicate the distance between the support posts.