The value of a custom garage door.

People typically start seeking out a new garage door by searching for a door that is standard in size that will fit the opening. Such a size will fit perfectly for a lot of garages, especially those in modern housing developments which are built to the same specifications. However, for a large portion of homes in the UK, a garage door that is made to measure is a requirement, not a bonus.

The Issue with Non-Standard Openings Many homes in the UK that were built before the 1980s, as well as a number of homes built after the war that are semi-detached, were constructed when there was no industry standard for garage opening dimensions. It’s possible to have an opening that is 2.1m in width with a height of 1.85m or a width of 2.7m and height of 2.0m. A standard garage door usually is offered in a very limited number of size options.

Because of this, fitting a standard sized garage door to a non-standard opening will result in gaps that can allow draughts, rain, and wildlife to get through. Alternatively, someone could attempt to fit the door with filler panels that look unsightly and will hinder the doors ability to function. What Does “Made to Measure” Actually Mean?

A garage door that is made to measure will be manufactured to be the exact dimensions of the opening, to within a few millimeters. This means that an installer will take measurements of the opening at several different points because the opening is not always square. These exact measurements will go into the production of the door, which will result in a door that is sized perfectly to the opening and has even gaps that are consistent in size all the way around the door.

This level of precision is especially critical for insulated garage doors. Even a slight gap on either side or the top of the frame diminishes the thermal efficiency of the door. All that foam filling means little when cold air is whistling in through the gap.

Choosing the Right Door for Your Home Made-to-measure doors are offered for all the main types of doors: Insulated sectional doors: Increasingly favoured for modern homes that prioritise insulation, security and clean aesthetics. Available in woodgrain and smooth finishes in a variety of colours. Insulated roller doors: Perfect when headroom is limited.

A made-to-measure roller door will fit the opening precisely, removing draughts and rattles that a standard door may have. Up-and-over doors: These are still very popular, especially on older homes. Made to measure in GRP or steel, with a selection of panel styles, from ribbed to Georgian bar designs.

Timber doors: For period properties or homes where character is important, there’s nothing to beat the kerb appeal of a hardwood made-to-measure door. It demands more upkeep than steel or GRP, but the aesthetic payoff is considerable. The Cost Premium — and Why It’s Worth It A made-to-measure door will be more expensive than buying a standard one — generally 20–40% more, depending on the type of door and the level of customisation.

But think about the alternative: a standard door

The Problem with Non-Standard Openings

What “Made to Measure” Actually Involves

Choosing the Right Door for Your Home

Made-to-measure doors are available across all the main door types:

• Insulated sectional doors: The most popular choice for modern homes where insulation, security, and a clean aesthetic are priorities. Available with woodgrain or smooth finishes in a wide range of colours.
• Insulated roller doors: Ideal where headroom is at a premium. A made-to-measure roller will fill the opening precisely, eliminating the draughts and rattles that can plague a poorly-fitted standard door.
• Up-and-over doors: Still widely fitted, particularly on older properties. Made to measure in GRP or steel, with a range of panel designs from ribbed to Georgian bar patterns.
• Timber doors: For period properties or homes where character matters, a hardwood made-to-measure door is unmatched for kerb appeal. Requires more maintenance than steel or GRP but the aesthetic reward is significant.

The Cost Premium — and Why It’s Worth It

A made-to-measure door will cost more than an off-the-shelf equivalent — typically 20–40% more depending on the door type and the degree of customisation involved. But consider the alternative: a standard door that doesn’t quite fit properly will cause operational problems, let in draughts, and look unprofessional. You may end up replacing it sooner than you’d like. A properly measured, properly fitted door should give you 15–20 years of trouble-free service.

Getting It Right: The Survey

The most important part of the made-to-measure process is the survey. A good surveyor will measure the opening height and width at multiple points, check whether the frame is plumb and level, assess the headroom and side room available, and identify any potential obstacles — pipes, light switches, ceiling joists — that might affect installation. If a company offers to supply a made-to-measure door without a physical survey, treat that with caution.

If your garage opening doesn’t match the sizes in the standard brochure — or even if it does and you want a result that looks and performs exactly right — a made-to-measure door is the choice that serious homeowners make. It’s the difference between a good installation and a perfect one.