Storage and Handling
Like all building materials, APA trademarked structural wood panels should be properly stored, handled and installed to ensure superior in-service performance.
Protect the edges and ends of panels, especially tongue-and-groove floor and shiplapped siding panels. For panels to be moved by forklift, place them on pallets or bunks when they’re received to avoid damage by fork tines.
Panels to be transported on open truckbeds should be covered with standard tarpaulins. For open railcar shipment, use “lumber wrap” to avoid extended weather exposure.
When possible, store panels under a roof, especially if they won’t be used soon after being received. Keep sanded panels and other appearance grades away from open doorways, and weight down a stack’s top panel to avoid any possible warpage from humidity. If moisture absorption is expected, remove steel banding on panel bundles to prevent edge damage.
Panels to be stored outside should be stacked on a level platform supported by 4×4 stringers or other blocking. Never leave panels or the platform in direct contact with the ground. Use at least three full-width supports along the eight-foot length of the panel, one centered and the others 12 to 16 inches from each end.
Cover the stack loosely with plastic sheets or tarps. Anchor the covering at the top of the stack, but keep it open and away from the sides and bottom to assure good ventilation. Tight coverings prevent air circulation and, when exposed to sunlight, create a “greenhouse” effect, which may encourage mold formation.