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FIRESTOP 255mm Intumescent Telescopic Letter Plate


With an ABS plastic frame and metal flap, these stylish letter boxes from Firestop are fully tested and certified in regards to fire and smoke applications. They are fitted with a high performance intumescent liner, which expands when heated, helping to protect door furniture and prevent the spread of fire. Additionally, the letter plate is available in different colours and sizes and also features an internal draught excluder and external weatherseal.


  • Fully fire and smoke tested
  • Intumescent seal expands when heated to help secure door furniture and prevent the spread of fire
  • Internal draught excluder
  • Stylish design
  • A variety of finishes and sizes available

Availability: Out of stock


  • Height: 70mm
  • Width: 255mm
  • Weight: 500g
  • Door Thickness: 40mm to 80mm
  • Finish: Satin Anodised Aluminium
  • Fire Tested: 1/2 hour EN1634-1 and BS 476: Part 22
  • Packaging: Boxed
  • Standards: Fire Tested to BS EN 1634-1 and BS 476: Part 22, Smoke Tested to BS 476: Part 31.1 and Acoustically Tested to BS EN ISO 240-3 (32db RW)
  • Manufacturer Reference: FS303