Select Hinges, Geared Continuous Hinges, SL21 Full Surface
- Standard Duty (SD) Tested per BHMA standard for medium-frequency doors up to 200 lb. without frame or door reinforcement.
- Heavy Duty (HD) Tested per BHMA standards. Up to 200 lb. doors (high-frequency) and up to 400 lb. doors (medium-frequency) without frame or door reinforcement; up to 600 lb. doors (low-frequency) with the use of Rivnuts in the frame and door.
83" Swing Clear
85" Swing Clear