How Thick Plywood For Shed Roof

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood.

How thick plywood for shed roof.

5 ply is a versatile type of plywood that is about 4 millimeters thick. That s considered to be the minimum. It will support roof. Most builders use 15 32.

Sheathing should be a minimum of 19 32 inch thick. Thicknesses of 1 2 to 5 8 inch are common with rafters spaced at 24 centers. It is about 2 to 3 millimeters thick and is generally used indoors since it looks more decorative than thicker plywood boards. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Post by diy johnny tue feb 20 2018 7 27 pm not advice but i d opt for the 18 if it were my shed. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Due to requiring extra tools for cutting the sheets to size the roofing job for the shed hasn t been completed. If you want the shed to be waterproof its roof must be constructed just like any other roof a plywood decking covered with shingles or with composite or metal roofing.

Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Plywood thicknesses for roofs start at 3 8 in areas with light load requirements on rafters at 16 centers. When this is the case experts recommend a 5 8 inch thick sheet. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

The work is in building it collecting the material etc so i take the view that the extra cost is small compared to the work effort. Use it indoors or outdoors but avoid using for framing permanent structures such as a shed or a home. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Keep in mind that the load of the roof still plays a role in the plywood thickness.

For heavy load rated areas 3 4 inch thick plywood is recommended regardless of rafter spacing. On saturday i collected a couple of 18mm sheets of plywood. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load.

Never attach roof sheathing with staples.