Shed Roof Joist Spacing

In other words the maximum distance it can cover without support from posts.

Shed roof joist spacing. 16 inch and 24 inch stud spacing. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. The determining factor of post spacing is the allowable span of your beams. For standard shed roof rafter spacing see rafter span chart.

Span calculator for wood joists and rafters also available for the. There are two stud spacing options for a shed. Moving to 16 on center you could span your spf 2x4s up to 6 for heavy loads and 9 for light loads which would still work with a 12 12 gable shed. Spacing your 2 4 shed rafters at 24 on center limits the width of your roof.

Stud spacing for a shed is important for two reasons. Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. 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. Factors that impact your shed roof design.

Builders aren t bound by standard rafter spacing measurements. Studs spaced at 16 inches make for a sturdier shed but the 24 inch spacing is more cost efficient. Spacing in exterior exposure. Allowable spans vary according to wood species and the loads.

Spacing joists in your shed 16 inches on center will give you a firmer feel with less bounce and increase the load capacity of the floor. Plywood or osb is the most common materials used for the roof sheathing. A shed s sturdiness relates to stud spacing and stud spacing is a notable factor in total materials costs. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

There is no standard spacing it depends on what size of rafters you want to use and the span of your shed. But they do tend to space rafters in one of several industry standard increments typically. If you had a 12 12 shed with a gable roof that would mean 26 rafters which is a lot. It must meet the local codes for thickness at least 3 8 which is also based on the rafter or truss spacing.

For instance 2 grade 2x4s at 16 on center will span just over 9. 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.