Fir Plywood Select T&G 4×8 5/8″

Higher-Grade Tongue & Groove Plywood for Cleaner Structural Applications.

The Fir Plywood Select T&G 4×8 5/8″ is a structural panel designed for applications where both performance and a cleaner surface appearance are important. Manufactured from select-grade fir (or spruce/fir) veneers, it offers improved face quality compared to standard construction plywood while maintaining strong structural performance.

Its cross-laminated construction provides stability, strength, and resistance to warping, making it suitable for demanding building applications such as subfloors, roof decking, and wall assemblies. The alternating grain direction in each layer helps the panel maintain its shape under load and changing environmental conditions.

The tongue-and-groove edge system allows sheets to interlock securely, creating tight joints that improve load transfer, reduce movement between panels, and help minimize gaps in flooring or decking systems. This makes installation more stable and helps improve long-term performance in structural assemblies.

At 5/8″ thickness, this panel provides a strong balance of rigidity and manageability, making it suitable for both residential and light commercial construction where a higher-quality finish is desired compared to standard sheathing grades.

Key Features of Fir Plywood Select T&G 4×8 5/8″:
Select-grade surface for improved appearance, tongue & groove edges for tight structural connections, cross-laminated construction for strength and stability, suitable for flooring, roofing, and wall systems, reduced movement and improved load distribution, and ideal for higher-quality construction applications.

Pro Tips:
Ensure all T&G joints are fully seated during installation for optimal structural performance. Use proper spacing and fastening patterns and allow panels to acclimate to job site conditions before installation.