Commercial plywood in simple terms is the basic or standard plywood available. Commercial plywood is also termed as MR grade plywood. MR stand for moisture resistant. Do not confuse MR with waterproof. Moisture resistant means the plywood can withstandsome amount of moisture, humidity and dampness.
Manufacturing of Commercial Plywood
Plywood (be it any grade or type) is typically made by gluing several veneer sheets together. The veneers sheets are manufactured from logs of wood obtained from different tree species. You therefore will find every commercial plywood made from different species of veneer. The veneer species varies with geographical location like you will have Rubber plywood coming from South of India, similarly you have different veneer species from North, East and West oh India.
Though Commercial plywood’s are made from different veneer species, the basic properties of commercial plywood remain the same.The inside material is the same. The only difference is its manufacturing process or treatment you can say (which vary from each manufacturing unit) and secondly the adhesive used to glue veneers. Usually Urea formaldehyde is used as adhesive to glue veneers.