Gatehouse W3-4 Large Gate Letterbox Rear Access

£96.99 (inc VAT)

Frequently Brought Together
House Numbers Large
Large House Numbers - 190 mm Wall Mounted
£9.99 (inc VAT)
  • 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
  • Correspondence suitable: A4 and C4
  • Capacity: 20.7L
  • Weight: 5.5kg
  • Colours: Black, 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 mail chute than the W3-3. This rear access letterbox is the perfect solution for mounting onto your 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 black and dark grey. The dark grey powder coating finish has a smooth matt appearance. The black powder coating has a slightly textured gloss finish.

The W3-4 is also available with a trim. This gives the letterbox a clean finish if a hole is cut into a gate or fence.

View our complete range of gate post boxes here,
or you can view more of our rear access post boxes here.

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