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.
Metric fire door sizes.
Sometimes odd size doors can be present in period properties the main difference being a door height increase of 2040mm and door thickness of 40mm.
Internal door sizes can also vary widely.
If in doubt give us a call on 01752 422 501.
Standard internal door sizes in metric.
Metric door sizes are extremely specific and different from imperial feet and inches.
Many homes and properties tend to have the more popular average door sizes which are also known as uk standard door sizes which are usually 1981mm.
Generally internal door thickness tends to be 35mm for a standard door but can go up to 40mm.
Standard uk door sizes.
Standard internal door sizes.
This is because extra core component materials are required in the construction of the door to achieve its fire rating.
The industry hasn t widely decided which measurement is king yet so the metric to imperial door size conversion charts below should help you understand the size of an internal door.
Take a look at our guide to fire doors to learn more.
2040 x 526 626 726 826 926 x 40mm.
2040mm x 926mm.
Standard fire door sizing.
Below are the most common uk door size dimensions in three measurements.
The door width size can vary whether it s imperial door sizes or metric door sizes in other terms if it s a short door or a large door you need we are here to guide you in the right direction.
Fire door standard sizes.
Remember to check that your frames.
Fire doors will be 44mm for a half hour fire rating and 54mm for an hour fire rating.
The door sizes have exact heights of 2040mm and widths vary as follows 526mm 626mm 726mm 826mm and lastly 926mm all with door thicknesses of 40mm but 44mm for 30 minute fire rated doors.