2x4 Rafters Shed Roof Rafter Span Calculator

The roof rafters provide integral structural support to the roof.

2x4 rafters shed roof rafter span calculator.

Includes result for hip valley factor slope factor and the roof slope in degrees. If you d rather not purchase. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. As mentioned above a 2 4 spf shed roof rafter can span 11.

Rafter length using pitch v r 2 sqrt 1 p 2 where v overhang r roof span p pitch use our online rafter length calculator to quickly compute the length of the shed roof rafter by entering the measurements of overhead length of roof span pitch or angle. Roofing calculators are commonly used by professionals. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. Span calculator for wood joists and rafters also available for the android os.

Allow for ridge thickness when determining rafter run to outer wall. An syp rafter can span 11. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through.

An syp rafter can span 8. There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. See rafter run to outer wall calculator below. Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement.

For instance 2 grade 2x4s at 16 on center will span just over 9. Shed roof a shed roof slopes in one direction only. Both of these are for light roof loads. 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.

If you live in an area that requires a shed roof rafter to support a heavy load then an spf rafter can only span 7. Calculating a shed roof with easy rafters. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. A manual with rafter length tables.

Easy rafters is designed to calculate shed roofs that are framed to a ledger board nailed against a vertical wall not freestanding shed roofs supported by walls at both ends. Also available for the android os.