Fir Plywood G1S 4×8 1/2″ (11mm)

Reliable Strength with a Smooth Finish on One Side.
The Fir Plywood G1S 4×8 1/2″ (11mm) is a durable structural-grade panel designed for a wide range of residential and commercial construction applications. Manufactured from Douglas fir, it offers a strong strength-to-weight ratio along with consistent performance and dependable rigidity.

Featuring a G1S (Good One Side) finish, this panel provides a smoother, more refined surface on one face, making it suitable for applications where appearance matters while still maintaining structural performance. Its 1/2″ thickness provides increased strength and stability compared to thinner sheets, making it suitable for wall and roof sheathing as well as general construction applications.

Commonly used in wood-frame construction, this plywood delivers reliable nail-holding strength and structural support required for building assemblies. It is a versatile choice for contractors and builders looking for a balance between workability, strength, and finish quality.

Key Features of Fir Plywood G1S 4×8 1/2″ (11mm):
Structural-grade Douglas fir for strength and durability, G1S finish with one smooth side for improved appearance, standard 4 ft x 8 ft sheet size, strong and stable 1/2″ panel for construction use, suitable for wall, roof, and general structural applications, and reliable nail-holding performance.

Thickness Guidance:
Thickness depends on your specific application, stud or rafter spacing, and local building code requirements. Always confirm the appropriate thickness with your builder, engineer, or local building inspector before installation.