Specialized architectural and structural plywood types are generally the most expensive. This includes certified Marine Plywood (IS:710 grade), aircraft-grade Baltic birch plywood prized for its void-free multi-ply construction, and decorative architectural hardwood veneers overlaid with exotic wood species like teak, oak, or rosewood. These panels command premium prices due to superior timber selection, waterproof resin bonding, and rigorous manufacturing standards.