Measuring your UPVC letterbox!

There are three measurements that you will need to take to identify which letterbox to order.

The first is the width of the letterbox (identified as 'W').

The second measurement is the height of the letterbox (identified by 'H' - 50mm for slimline or 70mm for standard).

The third is the depth of the door that the letterbox must pass through, identified by D1 (40mm - 80mm) and D2 (20mm to 40mm) to the right.

Letterboxes have a slight amount of adjustment on the Depth value, so a range of values are provided for this measurement.

D1 (40-80MM) Usually found in the mid rail of the door
D2 (20-40MM) Usually found in the panel of the door.