Shed Roof Rafters Spacing

It is possible to calculate a birdsmouth near the top of the rafter for a freestanding shed roof by checking the kneewall checkbox and entering a setback for the kneewall that positions the upper birdsmouth in the desired location.

Shed roof rafters spacing.

If you get premium kiln dried lumber then you could span 10 5 with the same size of lumber and rafter spacing. The same concept holds true for roof trusses. This is most likely the standard size that you will find on pre made roof trusses. A shed roof slopes in one direction only.

Use these two tables for roof rafters with a slope of 3 in 12 or less. So the space between rafters can be greater without reducing the maximum span. For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. Common spacing for trusses on this type of building is often between 2 and 4 feet but trusses built with advanced designs may allow spacing as great as 8 or 12 feet.

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. For standard shed roof rafter spacing see rafter span chart. For instance 2 grade 2x4s at 16 on center will span just over 9. Typical standard the typical standard for the spacing on the roof trusses is 24 inches.

There is no standard spacing it depends on what size of rafters you want to use and the span of your shed.