Garage door glossary
Most people don’t think too much about their garage door- until it has a problem that needs attention. When you call a professional to come in and assess what the issue is, you may hear a few terms you’re unfamiliar with. Check out our glossary below so that you can be in-the-know about what the problem with your garage door might be and how it can be fixed.
Supports that hold the track in place. Back hangs run vertically, while the track runs horizontally. Back hangs are usually cross-braced to prevent the track from spreading.
How much space you need to install the garage door, measured from the door to the rear of the horizontal track.
The structural support corner brackets on each side of the garage door. These brackets typically provide the attachment for the lifting cables on sectional doors.
These tracks are attached to the doorjamb with angle brackets.
Thick, multi-strand wires that attach the garage door to the counterbalance system.
Cable drums are an important component of the spring system that keep the cable from becoming tangled when the garage door opens and closes. They are grooved drums that the cables wind around as the system operates.
CABLE SAFETY DEVICE/CABLE STOP
Safety mechanisms that stop the garage door from falling if the cable breaks and stop the cable from slipping through the drum
CENTER SUPPORT BEARING
The support plate for the spring shaft, usually located in the center but can be located in other places depending on the size of the springs.
How much backroom, sideroom and headroom is needed to install the garage door.
The face of the door that actually rolls up and down or sideways.
One repetition of the garage door going from fully closed to fully opened and back to fully closed again.
How much room a door has to lift in relation to the inside of the garage. This can be low headroom, standard lift, high lift, or full vertical lift.
Always indicate the width first, and then the height.
Also sometimes called “double-strength glass,” this glass is about ⅛” thick and is lighter than plate glass.
Also called “stretch springs”, these springs provide lifting force for the garage door by stretching. They are attached to a pulley on one end and the rear track hanger on the other.
L-shaped bracket that connects the vertical and horizontal tracks.
This is the process used to prevent steel garage doors from rusting, coating the door with a zinc material.
GARAGE DOOR OPENER
Every component that is used to open and close the garage door. Can often be operated by a remote control.
The measurement of how thick steel is. Contrary to what you might think, higher numbers mean thinner steel.
Metal components that connect the sections of the door and allow the sections to maneuver the track as the door goes up and down.
The piece of the track that runs along the ceiling, supporting the door when it is fully open.
Material within the garage door that has the ability to reduce heat/cold transmission. Insulation usually consists of synthetic foams or fillers.
The vertical pieces of the door frame.
Weather stripping material along the door jambs that prevent wind, rain and snow from entering the garage.
The handle on the garage door that may be used if the door must be opened manually.
Glass or clear plastic windows in a frame on the garage door.
Specific hardware used when there is a lower ceiling and not a lot of height in the garage.
A bar of material that separates and supports panes of glass in a window or door.
Also called “daylight opening” or “finished opening” this is the measurement taken between the walls or between the door jambs.
One section of a garage door.
Key for safety, these sensors prevent the door from closing if they sense an obstruction in the doorway. They are typically mounted about 6” or so from the floor, and prevent the garage door from closing if they’re misaligned.
PNEUMATIC SENSING EDGE KIT
The curved part of the track that lets the door move between the horizontal and vertical track pieces.
RAIN STOP/WATER STOP
REAR TRACK HANGERS
The pieces that hold the end of the horizontal track to the garage ceiling.
The ball-bearing wheels or nylon rollers that allow the garage door sections to move along the tracks.
SAFETY SPRING CONTAINMENT
These components support the weight of the counterbalance system in relation to the weight of the garage door.
The mechanism that comprises that counterbalance system and transfers the weight between the counterbalance system and the door.
TORSION SPRING COUNTERBALANCE ASSEMBLY
Springs mounted above the door that aid in opening and lowering the door. The springs turn a shaft, which raises and lowers the door via the winding cables on drums.
Hardware that safely allows torque from a torsion spring to be applied to the rest of the spring system.