LCN has been the benchmark for commercial door closers since 1877, and the brand remains the specification of choice for architects and facility managers outfitting hospitals, schools, government buildings, and high-traffic commercial entrances where consistent performance and life safety compliance are non-negotiable. Every LCN closer is engineered to tolerances ten times finer than the width of a human hair, UL listed for fire-rated door assemblies, ADA compliant, and built to exceed ANSI/BHMA Grade 1 cycle requirements. The flagship 4040XP series has independently tested beyond 10 million cycles in controlled testing, making it one of the most proven closers in the industry. Doorware.com stocks 37 LCN models covering surface mounted, concealed, and parallel arm configurations for standard and fire-rated applications across wood, hollow metal, and aluminum doors. Need a direct replacement for an existing closer without new door prep? Most LCN models are engineered to retrofit the most common commercial hole patterns, which means a straightforward swap with no additional drilling. Our team can help you match your existing footprint to the right model.
