These guidelines are to help you measure for a new interior door and make an accurate measurement. There are 2 ways of measuring the required sizes.
Presuming the doorway has NO door installed.
An existing door is installed in the door frame.
1.Measuring a door frame with NO existing door installed.
Measure inside the door frame opening inside ( where door should sit ) on both the height and width. Measure internally in at least three different places and deduct 5 mm from both the Largest size around the new opening. By doing this , you will be able to scribe and trim the door to suit the opening. Measure the Height in 2 different places and deduct 10mm for spacing for existing carpet or tiles.
Measure your Internal Door frame ( Where Door should sit , you will find on most frames is rebated back 12mm ).
Measure in at least three different places and we recommend deducting 10mm from both the final height - we do not make any fitting allowances on the sizes you provide.
All dimensions to be supplied in Metric and all designs viewed externally.
Measure width in 3 different spots ( shown in red ) , then deduct 5 mm from the largest size out of the 2 measurements
Measure width in 2 different spots ( shown in Blue ) , then deduct 10 mm from the smallest size out of the 2 measurements
2. Measuring an Existing Door.
Measure the door on both the height and width. The existing door should have been installed with all the margins taken into account for opening ( No deductions will be needed ).
Measure your Internal Door.
Measure in at least three different places in width and Height - we do not make any fitting allowances on the sizes you provide.
Measure Width in 3 different spots , no deducting of measurements needed.
Measure Height in 2 different spots , no deducting of measurements needed.
Measuring Door Thickness
Measure your door thickness as shown below.
Once you have these measurements, you can email us with the measurements. Example: Height of Opening : 2040 Width of opening : 815 Door Thickness : 35 Metric Measurements = MM
A Picture says a lot.
Pictures say a thousand words, a few good pictures would help us a lot to determine the best way to tackle your project.