Fire Retardant Letterbox - 10''

Fire Retardant Letterbox - 10" 

These Fire-rated letterplates are fitted with an intumescent liner around the telescopic sleeve section of the letterplate. In the event of a fire the intumescent liner expands to seal the letterbox aperture and retains the fire integrity of the door. Fire-rated versions are available in 'Post Port' letterplate assemblies.

Features: 
- Fitted with intumescent liner
- Adjustable telescopic sleeve set
- Available in 10 and 12"
- 180° flap opening
- Fully sealed backplate
- Fully sealed letterplate flap

Measuring Guide:
- First remove your letterbox by lifting the flaps and unscrewing the fixing screws or bolts.
- Once the letter box is removed measure the exact width and height of the aperture (hole) and check the the sizes against the diagram.
- Measure the door mid rail - panel thickness to determine the letter box thickness needed (ie 20/40mm or 40/80mm)
- You may well find there is a few millimetres difference to your existing letter box, the door mid-rail or panel aperture can easily be trimmed using a hacksaw or similar.

Technical Details:
Overall Size: 272mm x 70mm
Cutout Size: 252mm x 57mm
Depth: 40-80mm