Measure Your Garage
How to Measure Your Garage Opening
Accurate measurements help us recommend the correct garage door size, confirm installation requirements and prepare a more accurate quotation.
View Measuring Guide →
Measure the Opening, Not the Existing Door
Measurements should be taken from the structural garage opening. Do not measure the existing garage door itself.
Measure in millimetres and, where possible, take each measurement in more than one position to identify any variation in the opening.
Final installation measurements should be confirmed before a custom-size door is manufactured.
The Four Measurements We Need
Provide these measurements when requesting a garage door quotation.
Measure the clear width of the garage opening from the left side of the opening to the right side.
Measure across the top, middle and bottom where possible.Measure from the finished floor level vertically to the underside of the lintel.
Measure on both sides of the opening.Measure the available wall space beside the opening on both the left and right sides.
This space is required for tracks and installation hardware.Measure from the underside of the lintel to the ceiling or the lowest obstruction above the opening.
Check for beams, pipes, lights or other obstructions.Also Check These Areas
Make sure there is sufficient clear space inside the garage for horizontal tracks and the garage door motor.
Confirm that the areas beside the opening are clear and suitable for fixing the vertical tracks.
Measure from the final floor height where possible, particularly on new builds or renovation projects.
Take note of pipes, beams, lights, cupboards or other items that may interfere with the garage door system.
Plan the Motor Plug Point
If you are preparing the garage before installation, we recommend providing a standard 3-pin plug point on the ceiling, approximately 3 metres back from the garage door opening.
This allows the garage door motor to be connected neatly without visible extension cables running along the walls or ceiling.
Send Us Your Measurements
For a faster quotation, send the measurements together with a photo of the garage opening.
Record the opening width, height, side room and headroom.
Take one clear photo from outside and one from inside the garage.
Include your suburb and province so we can confirm installation availability.
Let us know which Door King garage door design and colour you prefer.
Send Your Measurements to Door King
Our sales team can assist with standard sizes, custom openings, product selection and installation requirements.