Residential Roof Truss Span Calculator

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

Residential roof truss span calculator.

Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. When making a selection below to narrow your results down each selection made will reload the page to display the desired results. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Click to add item 26 spreadweb residential roof truss 6 12 pitch 87 to the compare list.

Is a family owned and operated designer and manufacturer of wooden roof trusses in north central idaho. Custom trusses up to 100 span. Over 51 sizes styles in stock. Shop roof trusses spacer floor truss.

Widely known for producing a quality product for over 20 years barlow truss provide any type of wooden roof truss you need. You can also use the wood beam calculator from the american wood council website to determine maximum rafter and joist lengths. 8 10 foot 1 10 foot 1. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run.

Use this handy tool to calculate the rake length of your roof. Also available for the android os. Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20. Our roof truss calculator can be used to aid you in the purchase of your trusses by determining the quantity of trusses and lineal feet required.

Alpine truss designs are engineered to meet specific span configuration and load conditions. Span calculator for wood joists and rafters also available for the android os. This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof.