Available in commercial and water proof grades, plyboard is used for making indoor furniture and outdoor applications. Commercial grade is made using urea formaldehyde resins and are moisture resistant grades fit for interior use in offices and homes. Waterproof or BWR is made from phenolic resins for bonding and is sufficiently resistant to water. These are suited for both indoor as well as exterior applications. Made from hard wood, these are much stronger and are available in different sizes and thickness to suit the purpose.