Roof Thickness Plywood

Plywood typically comes in 4 8 ft.

Roof thickness plywood.

With edge support and the same snow load 3 8 inch osb can be used. Sheet with varying thickness. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch. The standard width is 4 feet.

You can get plywood sheets with a length of up to 10 feet. In this case plywood should be a minimum of 3 8 inch thick. Plywood is made with three or more layers of thin wood glued together with the grain. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off. However you may need to consider bolstering the plywood thickness for a roof that has a higher load. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Many factors affect thickness.

The minimum plywood for roofing plywood is layers of wood. You might be tempted to choose a inch thickness although it s unnecessary in most cases. Steeper rather than flatter roofs will have lesser load per sq. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness.

The minimum thickness of plywood used for roofing is 3 8 th of an inch. A 3 4 sheet is actually 23 32 thick. 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. What is the actual thickness of a sheet of plywood.

Required dimensions of plywood for roofing. We also carry pre cut project panels that are available in different sizes that may vary by store. This kind of plywood can be used on roofs with minimal load. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal.

Foot and with a maximum of spacing of 16 inches between rafters.