Shed Roof Rafters Spacing

So the space between rafters can be greater without reducing the maximum span.

Shed roof rafters spacing.

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. Typical standard the typical standard for the spacing on the roof trusses is 24 inches. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center. 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.

There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. A shed roof slopes in one direction only. For instance 2 grade 2x4s at 16 on center will span just over 9. 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.

As a general rule roofs that have a high human occupancy rate should be framed with rafters every 16 structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes. The same concept holds true for roof trusses. Use these two tables for roof rafters with a slope of 3 in 12 or less. If you get premium kiln dried lumber then you could span 10 5 with the same size of lumber and rafter spacing.

For standard shed roof rafter spacing see rafter span chart.