Deck Roof Beam Span Table

A double 2x12 beam can span 12 feet.

Deck roof beam span table. Plan in advance by knowing the correct deck beam span to use. The numbers in gray indicate the distance between the support posts. Posted on april 20 2020 by sandra. See the deck post size table to make that determination because it will affect the size of beam you choose.

Check out our newest deck tools. The figures are based on quality materials. The tables below give maximum spans for rafters and beams. When the deck joists are 8 ft.

Joists you know the beam can span somewhere between 7 7 and 8 0 but you don t know exactly where. Code for nailing they will still check may warp and will shrink at the splices which allows moisture to get trapped with dirt promoting the compromise of the beams over time. You should also know the size of the post you are considering to use. I put the built up beam span table below but i would very rarely use a built up beam in an exterior application where they are exposed to the moisture conditions like a deck.

Deck roof beam span table. Steel post cap connectors plywood post to beam cleats other connectors deck porch railings code requirements safety deck framing tables codes specifications questions answers about allowable spans for deck floor or porch framing. A 2 2x10 can span 10 feet and so on. When building a deck with 7 ft.

When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Keep in mind that these are maximums in other words shortening spans slightly will result in a more solid structure. Single ply beam solution professional deck builder.

Span tables for canada building western red cedar decking roof deck design designing with roof rafter span tables lawriter oac. Simply input your project data and our tool will customize your load tables or diaphragm designs from among more than 73 000 permutations. During your planning stage don t forget to consider the spacing for your beams. Our new interactive deck tools provide the fastest way to generate your load tables and diaphragm designs for roof composite and form deck.

Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. Patio roof maximum beam rafter spans. Check with your local code official or simply drop back to the shorter value in the table and assume the allowable span is 7 7.

The deck beam span determines the strength of your deck. Dimensional lumber deck beam span chart. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.