Timex Plywood offers Decorative Type Lumber Core Board. Timex Plywood has been awarded ISO certification. Decorative Type Lumber Core Board is made from blocks of woods as per the Specification IS: 1659-2004. Decorative Type Lumber Core Board is of two grades and two types depending on the end use of the products. It is available in MR and BWR grades. MR Grade [decorative & commercial type] is used for interior purposes such as furniture, partition, paneling, ceiling etc.