How to Measure for Bi Fold Doors
Below is a simple measuring guide to help you accurately measure the opening for your Bi fold doors. This measuring guide is not a definitive instruction manual so we recommend that if you are in any doubt seek the assistance of a professional bi fold door surveyor.
Take your measurements from outside
|1 To ensure the opening is square, measure the diagonals as shown. These should be equal to confirm the opening is not out of square.|
|2 Measure the width in three places as shown. Take the smallest measurement and deduct 10 mm to give your true door size.|
|3 Measure the height of the opening in 3 places . Once again deduct 10 mm from the smallest measurement to give the true door size.|