Marine-grade plywood is used where exposure to dampness or weather may impede the performance of regular fir or spruce plywood.
Marine-Grade plywood is composed of 100% Douglas fir veneer, bonded with waterproof exterior grade phenolic resin adhesive. Typically, fir marine-grade plywood is of a good 2 side composition, with an “A” grade face and a “B” grade back. The common misconception about marine-grade plywood is that it utilizes a special adhesive in the layup process. The truth is that it is the same phenolic waterproof adhesive used in structural sheathing and sanded panels. What sets marine-type plywood apart from the others is the type of veneer used in the core. The inner plies of marine-grade plywood are composed of “B” veneers which are specially selected for no open defects in order to lay-up a panel with no core voids. Core voids will, with time, ultimately allow moisture ingress and a core with no open defects will provide extra protection from premature failure from the inside of the panel outwards.
MARINE-GRADE PLYWOOD AVAILABLE:
| Grade | Thickness | Width x Length |
| ABX Fir | 1/2″ | 4’x8′ (Special Order Item) |
| ABX Fir | 3/4” | 4’x8′ (Special Order Item) |
Other thicknesses may be available on special order, as well as exotic veneered face panels such as meranti, teak and gaboon for boat building.
