Shed Roof Joist Spacing

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

Shed roof joist spacing.

Studs spaced at 16 inches make for a sturdier shed but the 24 inch spacing is more cost efficient. Spacing in exterior exposure. Factors that impact your shed roof design. If you had a 12 12 shed with a gable roof that would mean 26 rafters which is a lot.

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. Allowable spans vary according to wood species and the loads. There are two stud spacing options for a shed. Span calculator for wood joists and rafters also available for the.

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. For instance 2 grade 2x4s at 16 on center will span just over 9. A shed s sturdiness relates to stud spacing and stud spacing is a notable factor in total materials costs. For standard shed roof rafter spacing see rafter span chart.

While you may be ok with the joist span at 24 inches the floor will be maxed out to the limits. Rafter and roof joist spacing is only one part of a complex roof design that works together to form a structure that meets building codes and can hold up the weight of the roof and roof load. Live load psf dead load psf span calculator for wood joists and rafters available for the iphone. It must meet the local codes for thickness at least 3 8 which is also based on the rafter or truss spacing.

16 inch and 24 inch stud spacing. 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. In other words the maximum distance it can cover without support from posts. 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.

Builders aren t bound by standard rafter spacing measurements. But they do tend to space rafters in one of several industry standard increments typically. Spacing your 2 4 shed rafters at 24 on center limits the width of your roof. However if the spacing is too wide the patio cover s beams will bow under the weight of the joists and roof covering materials.

Stud spacing for a shed is important for two reasons. Plywood or osb is the most common materials used for the roof sheathing.