This guideline is to help you make acurate measurements for a new/replacement windows and doors.

Measure the opening outside on both the height and width. Always measure the exact brickwork opening and not the old window frame.

Measure brick to brick in at least three different places, the smallest measurement of width and height is used for manufacturing. Once you have your sizes you should deduct 10mm from both the final height and width to allow for 5mm fitting allowance around the new window frame. This will enable you to ensure the new frame sits plumb and square once in the aperture. Measurements will need to include the frame, cill and any frame extenders/add on’s required.

All dimensions to be supplied in metric and all styles viewed externally.