Plywood Roof Size

Sheet with varying thickness.

Plywood roof size.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch. Required dimensions of plywood for roofing.

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. It is generally believed that osb is cheaper than plywood. Most roofs will be sheathed in plywood at least 3 8 inch thick. Plywood subflooring 3 8 plywood plywood roof sheathing 3 4 plywood 4x8 3 4 sheathing plywood 48 24 sheathing plywood related products 23 32 in.

This kind of plywood can be used on roofs with minimal load. It is true as the price of every osb board is around 15 20 per sheet 4 8 sizes. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal. The typical thickness range for sheathing is 3 8 to 3 4 inch.

We also carry pre cut project panels that are available in different sizes that may vary by store. 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. Loads will vary with the pitch of the roof.

Hardwood plywood comes also in abbreviated sheets measuring 2 by 2 2 by 4 and 4 by 4 feet while utility grade plywood comes in longer 4 by 10 foot sheets. Talking about plywood or osb for roofing you cannot miss the information of the cost. Sheathing should be a minimum of 19 32 inch thick. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

The standard width is 4 feet. In this case plywood should be a minimum of 3 8 inch thick. Foot and with a maximum of spacing of 16 inches between rafters. The most common plywood sheet dimension 4 feet by 8 feet translates to the metric dimensions of 1 219 by 2 438 millimeters.

The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. 8d ring shank nails should be used instead. However you may need to consider bolstering the plywood thickness for a roof that has a higher load.