Comparing door sizes can be confusing as there isn’t one overall standard door size chart that all door manufacturers adhere to. Different companies offer different sizes of door and some homes require bespoke non-standard door sizes to be made. And then throw in inches compared to metric sizes.
When researching new front doors and internal doors, there are common sizes you can use as a guide and we have listed these in the standard door size charts below.
Most important to consider is that for new builds, accessibility to a dwelling and internal door sizes are required to be a minimum size to meet building regulations.
What is the standard UK door width?
As we said above, there is no standard door size in the UK.
BUT, the most common (standard) door width in England and Wales is 2’ 6” – 30 inches – 762mm.
In Scotland, the door width is a little smaller, usually measuring 28.5 inches – 726mm.
What is the standard door height in the UK?
The most common (standard) door height in England and Wales is 6’ 6” – 78 inches – 1981mm.
In Scotland the door height is a little taller: 80 inches – 2040mm.
What is a standard internal door size?
For new builds, doorways must meet minimum requirements for building regulations. See Approved Document Part M.
Note, there are different rules for properties built as:
- Visitable dwellings M4(1)
- Accessible and adaptable dwellings M4 (2)
- Wheelchair user dwellings M4 (3)
Image from The Building Regulations 2010
Standard door width for wheelchair access
To allow for wheelchair access (in a visitable dwelling), internal doors must have a minimum clear opening of 750mm.
Note, the clear opening is not the same as the door width. A 826mm wide door will give a clear opening of 775mm.