10" Letter Box / Letter Plate Set — Doormaster (Fits uPVC, Composite & Wood Doors)

A modern, stylish 10" (254mm) letter plate set by Doormaster designed to give a neat, identical appearance on both sides of the door. Supplied as a two-part tunnel-style unit with extending inner sleeves for a perfect fit in doors from 40–80mm thickness. Ideal for domestic and light commercial doors.

Key Features

• Integral brush strip — improves insulation and reduces draughts.
• Sound-dampening bumpers — quiet operation when the flap closes.
• Telescopic sleeve set — adjustable to suit door thicknesses 40–80mm for a snug tunnel fit.
• 180° opening flap with a fully sealed backplate for clear access to mail and weather protection.
• Modern design — curved edges and corners for a neat, contemporary look inside and out.
• Supplied with all fixings — everything needed for installation included.

Technical / Fitment Information

• Overall width: 10" (254mm)
• Suitable door thickness: 40–80mm (adjustable sleeves)
• Flap travel: Up to 180°
• Packaging includes: External faceplate, internal faceplate (tunnel), telescopic sleeves and fixings.
• For full dimensions and installation diagram, please refer to product images.

Why Choose This Letter Plate?

The Doormaster 10" letter plate offers a balance of style and function — it looks identical inside and out, seals well against draughts, and fits a wide range of door thicknesses thanks to the adjustable tunnel sleeves. Perfect for uPVC, composite and wooden doors where a clean, modern finish is required.

Note: If you need help confirming fitment for a particular door, send the door thickness and we’ll confirm compatibility.