Construction Plywood

Cutting: Use a sharp saw blade specifically designed for plywood to prevent chipping and splintering, ensuring clean and accurate cuts. Carbide-tipped blades with a high tooth count are ideal for smooth cuts, minimizing tear-out and splintering, especially on the face veneer. Score the cut line with a utility knife to further reduce chipping, creating a cleaner edge and preventing the veneer from splintering.

Drilling: Predrill holes, especially near edges, to prevent splitting, allowing the screw to penetrate smoothly without putting excessive pressure on the surrounding wood fibers. Use a drill bit slightly larger than the screw shank to allow for wood movement and prevent the screw from binding, preventing the plywood from cracking or splitting as it expands and contracts with changes in humidity. Countersink screw heads for a flush finish, creating a smooth surface for subsequent finishing steps.

Fastening: Choose screws or nails appropriate for the plywood thickness and the application, ensuring the fasteners have sufficient holding power and won’t protrude through the other side of the plywood. Space fasteners evenly and use construction adhesive for added strength and stability, creating a stronger bond between the plywood and the framing members. Consult fastener charts for recommended spacing and penetration depths, ensuring the fasteners provide adequate holding power without compromising the plywood’s structural integrity.

Moisture Protection: Seal all edges and cut ends of plywood with a sealant or primer to prevent moisture absorption, especially in exterior applications. This helps prevent swelling, warping, and rot, extending the life of the plywood and maintaining its structural integrity. Use a paintable sealant if the plywood will be painted, creating a suitable surface for paint adhesion and preventing moisture from penetrating the plywood through the paint layer.