Residential Garage Door Parts Diagram

A residential garage door is a complex system of various parts that work together to provide secure and convenient access to your property. Understanding the components of a garage door can help you make informed decisions about maintenance, repairs, and upgrades.

Door Panel

The door panel is the visible part of the garage door and the largest component. It is typically made of steel, aluminum, or fiberglass and can be insulated or non-insulated. The door panel's design and material contribute to the door's curb appeal, insulation value, and durability.

Tracks

Tracks are vertical and horizontal metal rails that guide the garage door's movement. The vertical tracks are attached to the jambs on either side of the door opening, while the horizontal track is mounted across the top of the opening. The door's rollers engage with the tracks, allowing the door to move smoothly up and down.

Rollers

Rollers are circular wheels mounted to the door panel that engage with the tracks. They provide smooth movement and reduce friction during operation. Rollers can be made from nylon, steel, or a combination of materials and come in various sizes and designs.

Springs

Springs provide the tension needed to balance the weight of the garage door and allow it to open and close effortlessly. There are two main types of springs used in residential garage doors: torsion springs and extension springs. Torsion springs are mounted above the door opening and utilize a coiled spring to provide tension, while extension springs are mounted on either side of the door and stretch as the door opens.

Cables

Cables are attached to the springs and run over pulleys to the bottom of the garage door. They help to distribute the load and ensure the door moves smoothly and evenly. Cables should be inspected regularly for wear and replaced if necessary.

Hinges

Hinges connect the door panel to the vertical tracks. They allow the door to pivot as it moves up and down. Hinges can be made from steel, plastic, or nylon and are designed to withstand constant use.

Weatherstripping

Weatherstripping seals the gaps around the door panel and opening to prevent air, water, and pests from entering the garage. It is typically made from rubber, vinyl, or foam and helps to improve energy efficiency and reduce noise.

Operator

The operator is the electrical component that opens and closes the garage door. It can be controlled manually with a wall-mounted keypad or remotely with a transmitter, smartphone app, or voice assistant. Operators come in various types, including belt drive, chain drive, and direct drive, offering different levels of performance and noise.

Sensors

Safety sensors are installed near the bottom of the door opening to detect obstacles in the path of the door. If an obstacle is detected, the sensors send a signal to the operator to stop or reverse the door's movement, preventing potential accidents.

Other Components

In addition to the main parts mentioned above, residential garage doors may also include additional components such as insulation, windows, decorative hardware, and backup batteries to ensure operation in the event of a power outage.