W3-4 Rear access letter box with Trim


  • Mail Chute Dimensions:
    • Height: 110mm
    • Width: 375mm
    • Depth: 80mm
  • Mail Box Dimension:
    • Height: 400mm
    • Width: 375mm
    • Depth: 142mm
  • Dimensions of letter slot: 33mm x 340 mm
  • Fitting Trim Dimensions: 415mm x 150mm
  • Correspondence suitable: A4 and C4
  • Capacity: 20.7L
  • Weight: 3.7kg
  • Colours: Black, White, Copper, Silver RAL 9006, Dark Grey RAL 7016
  • Warranty: 2 year
  • Material: Galvanised steel
  • Thermal powder coated for enhanced rust resistance
  • Lock: Secure cylinder lock (Euro-Locks-Lowe&Fletcher),
  • Keys: 2 supplied

Our current Dispatch and delivery terms can be viewed here


The W3 is our best selling range of letterboxes. The W3-4 has a large capacity and a deeper main chute than the W3-3. This rear access letterbox is the perfect solution for mounting through your gate or fence. The trim provides a clean and finished look to any edge cut in a gate or fence. It’s designed to hold lots of mail, safely and securely. It comes with 2 keys.

The W3 range is thermally powder coated to protect against rust. It is available in 4 colours, black, white, copper and dark grey. The dark grey powder coating finish has a smooth mat appearance. The black, copper and white powder coating has a slightly textured gloss finish.

The W3-4 is also available to be installed through a single brick wall as the W3-4 XL as it has a deeper mail chute.


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