Headroom and sideroom refer to the space inside your garage around the opening and play a crucial role in deciding which type of garage door can be installed and how it will operate. These terms often come up during site surveys and quotes, so understanding them helps explain why some door styles are more suitable than others.
What is headroom?
Headroom is the vertical space between the top of the garage opening and the ceiling or an obstruction inside the garage. This space will be needed for:
- Tracks and guide rails
- Roller mechanisms
- Springs and brackets
- Electric motors on automated doors
Different door types require different amounts of headroom. For example, sectional and roller garage doors usually need more headroom than a basic up and over door, especially if the door is electric.
What is sideroom?
Sideroom refers to the horizontal space either side of the garage opening, measured inside the garage from the edge of the opening to the nearest wall or obstruction. This space is typically used for:
- Guide rails and tracks
- Hinges and fixings
- Structural support for the door system
If there is limited sideroom, certain door types may not be suitable without modifications or alternative fitting methods. This includes reduced or low profile track systems, behind-the-opening installations, offset or face fixed guide rails and more.
Why headroom and sideroom matter
Without enough headroom or sideroom, a garage door may:
- Not open or close smoothly
- Be difficult or unsafe to install
- Require adjustments or alternative door styles
During a site survey, installers measure these spaces carefully to make sure the door will fit correctly and operate safely.
What if space is limited?
Limited headroom or sideroom does not mean you cannot have a new garage door. There are low headroom track systems, compact roller doors and alternative fixing options designed specifically for tight spaces. For more information on some suitable garage doors for low headroom settings, have a read of our recent buying guide.
A professional installer can advise on the best solution based on your garage layout and how you use the space. Understanding headroom and sideroom helps ensure the garage door you choose is practical and suited to the structure of your garage.