Measuring for Bay Windows

1. Determine the depth of the blinds you are mounting and use this for the width of your cardboard:

• 25mm slats = 40mm depth
• 35mm slats = 55mm depth
• 50mm slats = 64mm depth

2. Cut two pieces of cardboard (depth determined from 1 above) wide by 30cm (12") long.

Important: If window handles stick out measure how far they stick out from the frame, usually 30-40mm and add the amount of extra clearance to the width dimension of the cardboard.

3. Place the strips in the left angle first, and bring them together until the front corners of the cardboard meet. Mark points "A" and "B".

4. Repeat this step for the right side angle, marking points "C" and "D".

5. Measure between points "B" and "C" to obtain the width measurement of the center window treatment.

6. Measure from point "A" outward to the desired width to obtain the width measurement of the left window treatment.

7. Measure from point "D" outward to the desired width to obtain the width measurement of the right window treatment.

8. Deduct about ¾cm (7.5mm) from each of your measurements to allow for clearance.

How to measure Square Bay Windows (Type A)

Use this method to cover the front window more effectively. The best method if you want to stop direct light from the front or to stop people looking in directly from the front. There may be a small gap where the side blinds meet the front blinds but this is usually obscured by the window frame at the corners.

Taking measurements

Front blind

Measure the width of the recess where the front blind will go. Make sure you take the smallest measurement if the recess or frame varies from top to bottom. Deduct 1.5 cm for clearance.
Side blinds Measure the width of the recess where the first side blind will go. Make sure you take the smallest measurement if the recess or frame varies from top to bottom. Deduct the depth (projection from window) of the blind you are going to order.

Front window recess width 200cm.

Deduct 1.5cm for clearance 200cm - 1.5cm = 198.5cm.

You should order the front blind at 198.5cm.

• 25mm slats = 40mm depth
• 35mm slats = 55mm depth
• 50mm slats = 64mm depth

Side window recess width 95cm.

Deduct depth of front blind as in above for example for 25mm deduct (4cm) 95cm - 4cm = 91cm.

Then deduct 1.5cm for clearance 91cm - 1.5cm = 89.5cm.

You should order the side blind at 89.5cm.