Porch Roof Beam Span Calculator

Simple beam point load at any location.

Porch roof beam span calculator.

You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. Patio roof beam calculator roof beam span calculator jackdecor co timber trusses beams patio covers and decks santa clarita christopher french beam span table douglas fir elijahhome co patio roof. Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. If an example roof is 10 feet by 20 feet the total area is 200 square feet.

Also available for the android os. Tables providing size selections for various beam spans and loading combinations for southern pine dimension lumber and southern pine glued laminated timber are available for the following applications. This number represents the total load that your roof must carry. Steel i beam.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Span calculator for wood joists and rafters also available for the android os. Two point loads at one third points on a simple beam. Most interior beams need to include the roof load.

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Multiply the load per square foot by the total area of the roof. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. This calculator matches up with 90 of the applications in the 2012 international residential code book.

It has been my experience to never use a beam smaller than a two ply 2 x 8. Window door garage door headers supporting roof wall floor loads. The species of lumber size of lumber and the load it carries. Uniformly loaded beam overhanging post calculator.

Window door garage door headers supporting roof loads only. Rafter and ceiling joist forces. Combined axial and bending load calculator. Another simple column calculator.

If there is are any questions about anything else then you should contact your supplier or an engineer. Multiplied by 40 pounds per square foot equals 8 000 pounds. According to our beam span chart resource the span of a beam is dependent on a few variables.