How UL Fire Rated Mortise Locks Support Fire Door ComplianceFire door compliance is not a matter of preference—it is a matter of life safety, code adherence, and legal liability. At D&D HARDWARE Industrial Co., Ltd, we do not view fire-rated hardware as a product category; we view it as an engineeri
Specifying door hinges for a commercial project means more than picking a finish or a material. It means selecting the right ANSI/BHMA grade—because that single number determines how long the hinge will last, how much wear it can withstand, and whether it meets the performance requirements for the b
When specifying access solutions for commercial buildings, hospitals, or multi-family housing, one question comes up repeatedly: What does UL 10C certification actually mean for a fire rated mortise lock?As a fire door hardware manufacturer, I have seen too many spec sheets list certifications witho