Roof Thickness Plywood

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.

Roof thickness plywood.

This kind of plywood can be used on roofs with minimal load. You can get plywood sheets with a length of up to 10 feet. Plywood is made with three or more layers of thin wood glued together with the grain. The standard width is 4 feet.

Plywood typically comes in 4 8 ft. Many factors affect thickness. A 3 4 sheet is actually 23 32 thick. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

Required dimensions of plywood for roofing. Foot and with a maximum of spacing of 16 inches between rafters. We also carry pre cut project panels that are available in different sizes that may vary by store. Plywood is often sold in 1 4 1 2 or 3 4 nominal thicknesses but the actual thickness is often 1 32 thinner.

However you may need to consider bolstering the plywood thickness for a roof that has a higher load. Steeper rather than flatter roofs will have lesser load per sq. 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. Because the actual thickness may vary measuring the plywood is the only accurate way to determine its thickness.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. What is the actual thickness of a sheet of plywood. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet.

In this case plywood should be a minimum of 3 8 inch thick. You might be tempted to choose a inch thickness although it s unnecessary in most cases. The minimum plywood for roofing plywood is layers of wood. Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot.

Sheet with varying thickness.