Quick Answer: Why Is OSB Cheaper Than Plywood?

What is the cheapest type of plywood?

D-grade plywood: The cheapest type of plywood veneers, these sheets typically haven’t been repaired.

The flaws can be slightly larger and the knots in this type of plywood can be up to 2.5 inches in diameter.

CDX: CDX-grade plywood is typically inexpensive material, as it is made of the two lowest grades (C and D)..

What are the 3 types of plywood?

Types of plywoodSoftwood plywood.Hardwood plywood.Tropical plywood.Aircraft plywood.Decorative plywood (overlaid plywood)Flexible plywood.Marine plywood.Other plywoods.More items…

Is OSB board better than plywood?

Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.

What is OSB plywood used for?

OSB is a material with favourable mechanical properties that make it particularly suitable for load-bearing applications in construction. It is now more popular than plywood, commanding 66% of the structural panel market. The most common uses are as sheathing in walls, flooring, and roof decking.

What type of plywood is strongest?

Marine plywoodIf you ever wondered “what is the strongest plywood?” The answer is Marine plywood. It is the strongest and toughest of all plywood on the market. It is bonded with high-quality glues to make the plies structurally solid and resistant to moisture.

How can I waterproof plywood?

Many types of waterproofing are available to protect plywood. The most common type sold in home improvement stores is the paint-on or spray-on type of waterproofing. These typically are liquid latex substances applied to the surface of the plywood while wet. Once they dry, they form a plastic, protective layer.

Which is more water resistant OSB or plywood?

OSB takes longer to get wet than plywood but also takes longer to dry out. When used as a roof sheathing, this tendency to hold moisture means it can degrade faster than plywood when exposed to chronic leaks.

What is the thinnest plywood you can buy?

The thinnest plywood products available today are aircraft grade. Yet, even though it is thin, it still offers excellent strength.

Is OSB plywood waterproof?

OSB is strong and water-resistant. In many instances, it is rated for load bearing applications (depending on the OSB grade). This type of board is an excellent material for use in waterproofing systems, be they roof, sub-floor or wall.

Is OSB board cheaper than plywood?

OSB is cheaper than plywood by about $3 to $5 per panel. For a typical 2,400 sq. ft. home, OSB is about $700 less expensive compared with plywood if used as the subfloor, sheathing, and roof decking.

Is OSB cheaper than drywall?

The biggest reason is cost – 1/2″ drywall sheets are about the same price as 7/16 OSB (with 15/32″ OSB not far either).

Which side of OSB goes down?

Also, by installing the stamps down, the rougher side of the panels is kept upward which helps with worker traction on the jobsite. However,structurally there is no difference in how the panel will perform whether the side with the grade stamps is installed up or down.

Can OSB be used for interior walls?

Unless you have an ordinance or amendment prohibiting OSB as an interior finish, they can do it.

Which side of OSB should you paint?

For interior uses the OSB should be smooth side out. The reason it is textured on one side is for roofing purposes and states to install with that side up. You put a smooth side up on a roof and you are going ice skating. You can mix drywall compound with paint, or paint with drywall compound.