Homeowners and home builders have to decide whether to use plywood or oriented strand board (OSB) for floor and roof decking. Although both plywood and OSB are used for similar purposes, there are differences in the two products that need to be considered.
Both plywood and OSB are strong enough to handle standard roof loads. OSB, which is constructed from wood chips, has a comparable weight threshold and thus can be used for roof decking.
Although OSB may be strong enough, there are questions about OSB durability, particularly after getting wet. Plywood has a much higher tolerance for water, and therefore may be a better choice. OSB tends to expand more rapidly when exposed to moisture.
There is only a slight difference in the cost of OSB versus plywood. A sheet of plywood typically runs only $4 to $6 more than a sheet of OSB.
- Photo Credit roof diagonal image by drx from Fotolia.com
Osb Vs. Plywood for Subflooring
Consumers choosing to build subflooring with oriented strand board (OSB) or plywood must consider the impact of moisture when the product gets...
How to Use 7/16 OSB on a Ceiling
There are many different materials that can be used for roofing and one of the most common is 7/16" OSB. This type...
How to Figure Out How Much Plywood to Use on a Roof
When building a home or other structure such as a shed or pool house, you'll need to know how many materials will...
OSB Roof Installation
Oriented strand board, also known as OSB, is commonly used in the building trade. OSB is manufactured by gluing wood chips into...