
Choosing the correct SELECT HINGES SL21 Full Surface Hinge involves considering several factors. First, determine the necessary length; standard options include 83", 85", 95", and 120" to match your door's nominal height, with custom lengths available. Next, assess your load and frequency requirements. These hinges are suitable for 1-3/8" to 1-3/4" doors, with options for thicker doors using long barrel nuts. They can support doors up to 200 lbs without reinforcement for medium-frequency use. For heavier doors or more frequent use, the SL21 offers heavy-duty options: up to 200 lbs for high-frequency use, up to 400 lbs for medium-frequency use, and up to 600 lbs for low-frequency use, but these heavier applications might require frame reinforcement with Rivnuts. Finally, consider door width compatibility; the hinge works with doors up to 48" wide, using a minimum of 16-gauge hollow metal or 1/8" aluminum frames. When ordering, specify the length, finish (Clear or Dark Bronze anodized aluminum), and whether you need standard duty (SD) or heavy duty (HD) hinges, along with your specific door and frame application details. Proper selection ensures your door functions smoothly and lasts longer.


