Patio Roof Beam Span Calculator

The smallest beams for patio covers are typically 4 by 6.

Patio roof beam span calculator.

In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. If there is are any questions about anything else then you should contact your supplier or an engineer. This post may contain affiliate links. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine.

Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. For more information see our disclosures here. Also available for the android os. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Multiplied by 40 pounds per square foot equals 8 000 pounds. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. If an example roof is 10 feet by 20 feet the total area is 200 square feet. Patio roof beam calculator september 10 2016 by arfan leave a comment deck beams and posts beam spans post sizes by alter how to attach a patio roof an existing house diy pj roof beam span table newgroun co a to residential decks and patios city of saskatoon roof beam span table newgroun co.

Patio roof maximum beam rafter spans. If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. This calculator matches up with 90 of the applications in the 2012 international residential code book. Patio beam span calculator posted on april 5 2020 by sandra please plete the items below and pergola beam span 18 professional deck builder forums build your patio cover or deck.

Multiply the load per square foot by the total area of the roof. It has been my experience to never use a beam smaller than a two ply 2 x 8. The species of lumber size of lumber and the load it carries. Span calculator for wood joists and rafters also available for the android os.

An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. According to our beam span chart resource the span of a beam is dependent on a few variables. A 4 by 10 can usually span up to 12 feet between posts.