How to take measures (sectional door) ?

Position of the sectional door:

The sectional door needs to be installed around the opening. It should be fixed on the sides as well as on the top. During the opening of the door, it will lodge itself below the ceiling. Attention: during the opening, it may take up more depth space (take into account the door’s height + 70 cm for the depth).

If there are no spandrels, you will need to position the door in the day (we will provide you with a frame to conceal the rails and get the best result possible).


The tape measure is the main measuring tool to be used. As mentioned below, we advise you take measurements in different places (top, bottom…) to check the regularity of the wall. Accurate measurements are vital when installing your garage door.

1. Width of the bay:

This corresponds to the available width in façade (also called clear passage or width of a day).

Check the width in different places: at the top (measurement 1) and at the bottom (measurement 2), to check there is no discrepancy. Check also that your wall is indeed level.

Where there is a significant discrepancy between your measurement 1 and your measurement 2 (like with old buildings where a brick may stick out at the bottom), write those measurements in our garage door configurator which will calculate whether it should install the door behind the bay (in the spandrels).

Attention: never take measurements against the existing door (measure the opening from wall to wall).

2. Height of the bay

This corresponds to the height (also called clear passage or width of a day).

Check the height in different places: to the left (measurement 3) and to the right (measurement 4), to check there is no discrepancy.

Where there is a discrepancy, or if your door has a rounded shape (arch…), indicate the highest point. Your door will be set behind the bay, in the spandrels).

3. Spandrels and return bearings:

This often corresponds to the current position of your garage door. These wall returns allow to move the rails and the door frame back in order to maintain the largest opening (clear passage) possible.

Measure the spandrels (measurements 5 and 6) and the return bearings (measurement 7) when the door is open. If you do not write anything down, we’ll set a default value of 0 cm.

4. Left/right sides and clearance:

Measure the left side (measurement 8) and the right (measurement 9) as well as the upper clearance (measurement 10).

Please ensure than no pedestrian door interfere with the horizontal rails and the door.

In the presence of pipework (heating or electrical) reducing the available space, you can indicate a negative measure. This will allow us to calculate a fixed part for the door and taking it into account during the production.

5. Depth of your garage

Measure the available depth (measurement 11). For a sectional door, the depth needs to be equal to the height of the door + 70 cm.

Ensure also that no electrical installation or any other type of installation interferes with the door panels when opening and closing it.

Advice: when ordering, send us a picture of your installation so we can check your measurements.