There are many different standard door sizes available in the UK and understanding the measurements can often become quite confusing.  Daylight Glazing offers a core selection of the most common door sizes from stock and if you have a non-standard size requirement, bespoke sizes can be ordered for many of our door ranges.


The standard door sizes in the UK are a little different than they are other parts of the world. In this blog post, we will talk about what the standard width and height of internal and external doors is for homes in the UK, as well as what size front door you should have on your home.

The most common door size in the UK is 2’6” (1981 x 762 x 35mm).


  • 1981 x 457/533 x 35mm – door sizes tend to be most popular for use as cupboard or wardrobe doors.
  • 1981 x 610/686 x 35mm – door sizes are used where the wall space may be restricted and a smaller door is required.
  • 1981 x 762 x 35mm – often referred to as a 2’6” door is the most common internal door size in England and Wales.
  • 1981 x 838 x 35mm – in most circumstances provides the required opening width for wheelchair access under the Part ‘M’ mobility requirements. 
  • You may also hear this door size being referred to as a 2’9”.
Different Door Style
New Front Doors design


  • You’ll often find doors do vary in size at some points. Whilst there are standard sizes and minimum size recommendations, it is possible to come across doors that are much smaller or much larger. Smaller doors are common in older or more traditional homes.
  • Some doors have odd widths, usually due to where they are placed being limited by their surroundings, such as a staircase or a wall. You may not realize this until you try to move a piece of furniture through the door and realize it won’t fit through easily, even if it fits through other doorways in your home!
  • But there are some restrictions on door size.


All of the standard UK and metric door sizes are usually available as a fire door equivalent with the only difference being an increased door thickness of 45mm.  This is because extra core component materials are required in the construction of the door to achieve its’ fire rating.  Remember to check that your frames, in tumescent seals and iron mongery also comply with the door’s fire certification.


Please see below our helpful door size conversion chart.  If you still work in feet and inches, the chart will help you work out the metric equivalent size of our doors.

Metric Door Size


The ‘non-standard UK door sizes’ below are the available but less commonly wanted door sizes in the UK. These door dimensions are readily available in popular ranges of doors. If your door isn’t on this list it’s worth giving us a call to see what we can do, even if that means we recommend custom doors to suit you best.

Metric door size chat


When it comes to standard door sizes – measuring is key! If you’re out shopping for new interior or exterior doors then make sure you take dimensions into account before making your purchase. It’s advisable that these measurements are checked by a professional door installer beforehand too, just in case there are any issues which need sorting out early on rather than having problems further down the line!

Request you to check our website for design tool option “Design Your Doors & Windows”

Where you can play with our design tool and get the best idea for your doors and windows with style, color and many more options.

You can always call us on 020 8386 1545 or email us at

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