Porch Roof Beam Span Calculator

Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads.

Porch roof beam span calculator.

Uniformly loaded beam overhanging post calculator. Another simple column calculator. Simple beam point load at midspan. Most interior beams need to include the roof load.

If an example roof is 10 feet by 20 feet the total area is 200 square feet. 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 loads only. This calculator matches up with 90 of the applications in the 2012 international residential code book.

Multiply the load per square foot by the total area of the roof. Use this calculator to find out the beam span and deck footing size for your project. Lumber species southern pine douglas fir douglas fir larch hemlock fir spruce pine fir redwood western cedar ponderosa pine red pine. Simple beam point load at any location.

Steel i beam. If there is are any questions about anything else then you should contact your supplier or an engineer. Beam span calculator for help simply click on the beside the section you need help with watch this tutorial video. Rafter and ceiling joist forces.

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. The species of lumber size of lumber and the load it carries. Also available for the android os. 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. This number represents the total load that your roof must carry. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Combined axial and bending load calculator.

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. Window door garage door headers supporting roof wall floor loads. Span calculator for wood joists and rafters also available for the android os.