Roofing Plywood Dimensions

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

Roofing plywood dimensions.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Plywood typically comes in 4 8 ft. These project panels help eliminate waste cut costs and are easier to transport than full size panels. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood.

When this is the case experts recommend a 5 8 inch thick sheet. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. Foot and with a maximum of spacing of 16 inches between rafters. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal.

We also carry pre cut project panels that are available in different sizes that may vary by store. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Its size tolerances especially for thickness are smaller that those for the utility grade plywood used in the building trades for roof and wall sheathing subfloors and general use purposes. The standard width is 4 feet.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. It will support roof. You can get plywood sheets with a length of up to 10 feet. Steeper rather than flatter roofs will have lesser load per sq.

Sheet with varying thickness. Keep in mind that the load of the roof still plays a role in the plywood thickness. You might be tempted to choose a inch thickness although it s unnecessary in most cases. This kind of plywood can be used on roofs with minimal load.

Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof. Required dimensions of plywood for roofing.