Types of Plywood Plywood Collections We offer plywood tailored for both structural and aesthetic applications: Ordinary Plywood 8'x4' (3,6,12,18,24,30mm thick). Birch Plywood 1250x2500mm (6,12,18,30mm) & 1500x3000mm (6,12,30mm). Flexible Plywood 8'x4' (6,12mm), ideal for curved surfaces. European Oak Plywood Refined, high-end projects. American Walnut Plywood Premium interiors and bespoke furniture.