Exterior Plywood

Oriented Strand Board (OSB)

OSB is a type of engineered wood. OSB’s combination of wood and adhesives creates a strong, dimensionally stable panel that resists deflection, delamination, and warping. The most common uses of OSB are as a floor, or as wall and roof sheathing.

Available in
23/32″ (4’x8′) #1 Tongue and Groove (3/4)
19/32″ (4’x8′) #1 Tongue and Groove (5/8)
7/16″    (4’x8′) #1
3/8″       (4’x8′) #1


TimberTown carries both Standard and Select Grade Spruce Plywoods: unsanded sheathing for general structural applications or sanded panels where a smooth finish is desired. Spruce plywood is often used for underlament and subflooring. It is also manufactured with waterproof glue for exterior applications.

Available in
3/4″ (4’x8′) Standard/Select
5/8″ (4’x8′) Standard/Select
1/2″ (4’x8′) Standard/Select
3/8″  (4’x8′) Standard


TimberTown carries Standard, Select, and Good 1 Side for plywoods. They are most commonly used in the construction industry for interior and exterior roof, wall, and floor sheathing. It is light and easy to work with.

Available in
1″    (4’x8′) Standard
3/4″ (4’x8′) Good 1 Side
3/4″ (4’x8′) Select Tongue and Groove
3/4″ (4’x8′) Standard Tongue and Groove
5/8″ (4’x8′) Select Tongue and Groove
5/8″ (4’x8′) Standard Tongue and Groove
1/2″ (4’x8′) Good 1 Side
3/8″ (4’x8′) Good 1 Side
1/4″ (4’x8′) Good 1 Side


To treat plywood, it is put into a pressurized chamber, a preservative is added and high pressure is applied to force the preservative deeper into the wood. This process will significantly increase the lifespan of the wood by protecting it against both decay and insect damage.

Available in
3/4″ (4’x8′) Micropro Sienna®
5/8″ (4’x8′) Micropro Sienna®
1/2″ (4’x8′) Micropro Sienna®
3/8″ (4’x8′) Micropro Sienna®

Request a Quote for Your Project