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How to measure up

Although we offer a free measuring service on request, you may prefer to measure up yourself. Firstly, you will need to ascertain whether your new garage door will need to be fitted within a brickwork opening, and therefore require a frame, or whether it will be fitted to an existing timber frame.

Fitting a door with a frame within a brickwork opening

If you'd like your new door to be fitted with a new steel or timber frame, firstly measure the opening from brickwork to brickwork, then from floor to brickwork/lintel (see diagram on right).


A Measure the width of the opening from brickwork to brickwork


B Measure the height of the opening from floor to brickwork


Next, write down the measurements for A and B. This will allow you to work out which door size you require from the table below. And don't worry if you're unsure about door size. Just give us a call and we'll be more than happy to double-check for accuracy using the measurements you've taken.

Fitting to an existing timber frame

If you'd like your new door fitted to an existing timber frame, first ensure that the timber is in good condition (check for rot, particularly at the bottom). Please also make certain that it's square, vertical and secure within the opening. The timber should be 70mm x 70mm (2¾ x 2¾).


Next, measure the opening from the inside of the frame both vertically and horizontally. Note down your measurements and check the table below to see what door size you require. And don't worry if you're unsure about door size. Just give us a call and we'll be more than happy to double-check for accuracy using the measurements you've taken.


A Measure the width of the opening from brickwork to brickwork

B Measure the height of the opening from floor to brickwork

Selected door width

Opening width A Door width
Min (mm) Max (mm) Metric (mm) Imperial
2299 2319 2134 7ft 0in
2451 2471 2286 7ft 6in
2603 2623 2438 8ft 0in
2908 2928 2743 9ft 0in
4432 4452 4267 14ft 0in

Selected door width

Opening height B Door height
Min (mm) Max (mm) Metric (mm) Imperial
1971 2144 1981 6ft 6in
2124 2296 2134 7ft 0in

Selected door height

Opening height B Door height
Min (mm) Max (mm) Metric (mm) Imperial
2061 2071 1981 6ft 6 in
2214 2224 2134 7ft 0in

Selected door height

Opening width A Door width
Min (mm) Max (mm) Metric (mm) Imperial
2129 2139 2134 7ft 0in
2281 2291 2286 7ft 6in
2433 2443 2438 8ft 0in
2738 2748 2743 9ft 0in
4262 4272 4267 14ft 0in

To arrange a quotation, call us on 0800 915 0001 or request a callback