Geared hinges are also referred to as piano hinges. This type of hinge is a one piece hinge that spans vertically from the bottom of the aluminum storefront door frame to the top of the aluminum storefront door frame with screw holes every 4 -6 inches.
Geared hinges have two flaps, one that screws onto the aluminum storefront door frame and one that screws directly onto the aluminum storefront door.
Geared Hinge Usage
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Typical usage of a geared hinge would be if you were buying a new storefront door and keeping your existing frame due to the
fact that it would be a 99% chance that hinges from some random aluminum storefront door vendor would most likely not match up to your existing frame.
- You have an oversized storefront door with insulated glass installed; therefore, you will need to have a heavy duty geared hinge to support the doors weight.
- Auto showroom doors typically ship with four hinges spaced one at the top and bottom and two intermediate hinges or one geared hinge on each door.
Geared hinges are an additional charge that runs from $100.00 - $200.00 extra per door.