Upvc Door Letterboxes for Dual Glazed Doors
There are lots of types of letterboxes fitted on existing upvc doors. Generally however they get into three sizes 10 inch: 250mm long. 12 inch: 300mm long and slimline 12 inches: 300mm lengthy.
Midrail kind letterboxes tend to be fitted with an elongated sleeve that accommodates depths of 40mm to 80mm. The reason for this is certainly that they're suited to the thicker content areas of the door including the transom or midrails.
Panel kind letterboxes are fitted with a shorter sleeve than their counterpart midrail kind. The panel type accommodates depths of 20mm to 40mm. The reason behind this might be they are typically fitted to the slimmer product elements of the entranceway.
The other essential dimension could be the width for the letterbox, frequently determined by whether or not it fits into a upvc door panel or whether it's fitted into a upvc midrail. A midrail user is thicker than a door panel and then the letterbox to fit it has an extended sleeve to match.
There are all the relevant detail by detail measurements on which you need to look out for in a brand new Upvc door letterbox on our page sheets to aid your choice process. These letterboxes are suited to Midrail, Panel or Slimline Upvc Doors.