Patio Roof Beam Span Calculator

The species of lumber size of lumber and the load it carries.

Patio roof beam span calculator.

This calculator matches up with 90 of the applications in the 2012 international residential code book. Multiplied by 40 pounds per square foot equals 8 000 pounds. 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. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths.

Most interior beams need to include the roof load. In general the maximum span for a 4 by 6 beam is 6 feet between 4 by 4 posts. A 4 by 10 can usually span up to 12 feet between posts. For more information see our disclosures here.

This number represents the total load that your roof must carry. This post may contain affiliate links. 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. If an example roof is 10 feet by 20 feet the total area is 200 square feet.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Use this calculator to find out the beam span and deck footing size for your project. 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. Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video.

According to our beam span chart resource the span of a beam is dependent on a few variables. Also available for the android os. The smallest beams for patio covers are typically 4 by 6. Multiply the load per square foot by the total area of the roof.

If you move up to 4 by 8 you re usually allowed to span up to 10 feet between posts. It has been my experience to never use a beam smaller than a two ply 2 x 8. Patio roof maximum beam rafter spans.