How To Measure Your UPVC Letterbox

Please use our guide below on choosing the correct letterbox for your double glazed door

There are different sizes of letterboxes or letterplates available. In some cases the letter box you have may not be made any more, but in 99% of cases the letterboxes we sell are able to fit your door.

Step 1: Remove letterbox, see diagram below.
Step 2: Measure size A in the diagram below.
Step 3: Measure size B in the diagram below.
Step 4: Measure size c in the diagram below.
Step 5: You should now have 3 sizes
Additional Info: A & B is the aperture height and width. C is used when choosing the depth setting on the ordering page.

Click Here to be directed to the UPVC replacement letterboxes