This Practice provides door hardware manufacturers, suppliers, and installers with requirements for door hardware. This Practice describes the requirements for all material, fabrication, finishes, delivery, and installation of hardware. This is a nonrestrictive specification, written without reference to specific manufacturers, brand names, or model numbers. Industry standards from the American National Standards Institute (ANSI) and Builders Hardware Manufacturers Association (BHMA) are used to specify performance and quality requirements for pieces of hardware.