Framemaster 12 Inch Letterbox

This is the FrameMaster 12-inch (40/80mm) aluminium letterplate with a white powder-coated finish, designed specifically for installation on composite, timber, and aluminium external doors. It features a 40mm sleeve for doors/composite slabs 38-42mm thick and an 80mm sleeve for doors 68-78mm thick (both sleeves are included). The letterplate has external spring-loaded flaps with rubber seals for draught protection and an internal brush strip. Overall size: 355 × 76mm. Aperture required: 278 × 45mm. Supaced 10mm from the door edge. Comes complete with colour-matched fixing screws and bolt-through fixings for secure installation. Ideal replacement or new fit for doors requiring a 12-inch letterplate with telescopic sleeves.