Timber Panelled and Glazed Shutters - Part 1: Door Shutters (B.L.T. type)
This standard specifies the requirements for timber panelled and glazed door shutters. Engineers, architects, and builders use it to define material quality, standard dimensions, permissible tolerances, and construction methods (like mortise and tenon jointing) for wooden door shutters in buildings.
Specifies requirements for timber panelled and glazed door shutters of B.L.T. type.