If your slab door is more than 25 years old use a pre hung door to ensure a sealed frame.
Standard external door dimensions uk.
Internal standard door sizing uk.
While a door width of 36 inches is oversized for an interior door it s the standard size for front doors the standard height remains the same however.
It can take 10 12 weeks to get an extra tall or extra wide door made depending on the size and the type of material.
Pre hung doors include both the door and the frame that supports the door while slab doors include just the door alone.
As external doors need to be more sturdy they are usually thicker with 44mm 1 3 4 being the most common thickness in domestic settings.
Typically fire doors sizes are 27 x78 30 x78 and 22 x78 but may also be available in the smaller size of 24 x78 metric fire doors may also be available with standard sizes ranging from 626mm x 2040mm and 726mm x 2040mm to 626mm x 2040mm and 926mm x 2040mm.
Measuring for a pre hung exterior door can be tricky.
The standard heights and widths of external doors are often comparable to standard internal door sizes.
Follow this video for specific steps.
The main difference is seen in the thickness of external doors.
If you want something that is just slightly smaller than the standard 3 foot exterior doors then trimming down a standard sized door to fit is a good option.
All external doors are usually supplied 44mm thick.
On this page we explain the standard internal door height and standard internal door size door width.
Entry doors are usually 36 inches wide.
The most common standard door sizes for both imperial and metric external doors are 30 x78 32 x80 33 x78 34 x82 36 x84.
At bso we provide a core range of the most prolific door sizes from stock.
Adjusting the size of an external door.
Jb kind doors offer 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.
Extra wide internal doors many people nowadays have wider than standard openings which means they will require non standard internal doors this can sometimes be due to disability access which means doors are wider than 838mm or it may be that you have an older property with a slightly odd size door opening.
Double doors are also sold as room dividers which means that not only do you get the two doors but also the frame to suit the chosen doors the sizes of the standard room dividers are 1246mm 1558mm 1904mm 2478mm and 2494mm not all double doors are available in all these sizes the range of timber types is confined to oak mahogany pine.
1981 x 457 533 x 35mm door sizing usually most popular for wardrobe or cupboard door use.