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Our intumescent telescopic letterbox systems are fire and smoke rated for 30 minutes and are very popular in multiple occupancy residences. The two sizes are 272mm x 70mm (residential) and 306mm x 70mm (commercial) and both will fit doors from 40mm to 65mm thick.

Each letter box system has an intumescent liner fitted around the telescopic sleeve section. In the event of a fire the intumescent liner expands to seal the letterbox and keep the integrity of the fire door.

The letterplate is available in polished brass, polished chrome, satin aluminium or stainless steel and is tested to be fitted up to 1050mm from the floor. The colour of the surround may differ from images shown.

Product Data Sheets

PDF downloadIntumescent Telescopic Letterbox Data Sheet

PDF downloadIntumescent Telescopic Letterbox SDS Sheet

  • Tested to BS476 Parts 22 and 31.1
  • 30 minute fire and smoke rated
  • Two sizes: 272mm x 70mm (residential) or 306mm x 70mm (commercial)
  • Suitable for door thickness from 40mm-65mm
  • Available in 4 finishes - satin aluminium or steel and polished brass or chrome
  • Fully sealed letter plate flaps and back plate
  • Complete with internal flap and aperture liner
Customer reviews
Average rating:
5.00 (Votes: 1)
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  • nick massey
    Jul 23, 2013, 21:32
    Prompt delivery.
    Excellent high quality products.

Intumescent Telescopic Letterbox

    • Model number:
    • £15.73 ex. VAT
      £18.88 inc. VAT
      SAVE £48.02 (75%)
    • Never Beaten on Price
    • 100-day Free Returns
    • Spend £60 + vat for Free Delivery Next working day if ordered before 2pm
    Score: 5.00 (votes: 1)
    Reviews: 1

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