HD1800 Heavy Duty Concealed Continuous Geared Hinge Sliding Door & Barn Door Hardware This product is fabricated to

This product is fabricated to order and is not returnable or refundable

Includes SDST Arm — Spring stop door saver arm thumb turn hold open

For use with hollow metal doors and wood doors

When retrofitting any portion of an existing fire-rated opening

HD1800 Heavy Duty Concealed Continuous Geared Hinge Sliding Door & Barn Door Hardware This product is fabricated toNGP HD1800 HD1800 LL Heavy Duty Concealed Continuous Geared Hinge, 1 8" Door Inset, for 1 3 4" Doors Continuous geared aluminum hinges run the full height of the door evenly distributing the weight of the door along the full height of the frame. Ideal for high frequency and heavy weight doors in new construction and retrofit applications. 1 8" Door Inset, for 1 3 4" Doors Aluminum alloy 6063 T6; Anodized after machining Specially designed involute