Survey Sheet Download
How to measure a composite Door
For our doors all measurements are in millimetres (mm) There are 25.4 millimetres to one inch so
An door hole measuring width 2Ft 6inches =30 inches multiplied by 25.4mm = 762mm
Alway make sure that your tape is in good condition and the end is not bent giving an incorrect measurement.
All doors need to measured in three places top middle and bottom and the same for the height.
Print this page to help you ....
Top width ............mm
Middle width ............mm
Bottom width ............mm
Smallest width ................mm becomes the size you use minus 10mm for fit
Finished width after deductions.................mm
You now repeat the exercise for the height
Left height ............mm
Middle height ............mm
Right height ............mm
Smallest height .............. mm becomes the size you use minus 10mm for fit
Finished height after deductions ........................mm
Things to remember.
Look out for and remove render so you can see the edge of the current frame.
Check inside for heavy plaster lines that may hinder the opening of the door or may require knockon to be added
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