1. Width – Measure at the top and bottom on the inside of window from left to right. Measure to the closest millimetre. Deduct 5mm from the measurement taken at the top of the window and record this measurement as the Width.
2. Height - Measure at three different locations on the inside of window from top of the reveal to the window sill. Measure to the closest millimetre. Use the smallest height with no further deductions and record this measurement as the Height.
3. Skirting / Tiles - Should there be skirtings or wider than 10mm which need to be taken into account, please contact the office for further guidance.