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Garage Door terms, defined

Plain definitions of the garage door words that come up on estimates, inspections and supplier calls, written for garage door companies. Each term says where it matters on the job and links the Koira calculator, cost guide or template that goes with it.

C

Garage DoorCable drumCable drums sit at each end of a torsion shaft.

D

Shared with Appliance RepairDiagnostic feeA diagnostic fee is the set charge for coming out and finding what is wrong, before any repair is approved.

E

Garage DoorExtension springExtension springs run along the horizontal tracks on each side of a garage door and stretch to counterbalance the door.

G

Garage DoorGarage door openerA garage door opener is the motor unit that raises and lowers the door, driven by a chain, belt, screw or a wall mounted jackshaft.Garage DoorGarage door trackThe tracks are the steel channels the door's rollers ride in, vertical at the sides of the opening and horizontal along the ceiling.Shared with Windows and DoorsGarage to house doorThe door between an attached garage and the house has fire separation rules: solid or rated construction and, in many places, a self closer.

I

Garage DoorInsulated garage doorAn insulated garage door has polystyrene or polyurethane insulation inside the panels, rated by R-value like other insulation.

P

Garage DoorPhoto eyePhoto eyes are the pair of sensors near the floor on each side of a garage door opening.

S

Garage DoorSpring cycle ratingA spring's cycle rating is the number of open and close cycles it is built to last before it is expected to break.

T

Garage DoorTorsion springA torsion spring is the coiled spring on a shaft above a garage door that twists to store energy and lift most of the door's weight.

W

Shared with Windows and DoorsWeatherstrippingWeatherstripping is the foam, rubber, felt or metal seal fitted around doors and operable windows to stop drafts where they close.

More for garage door companies: free garage door tools, templates and guides and how the trade runs on Koira. Or browse the whole glossary.

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Garage Door Glossary: Terms and Definitions | Koira