Fire Proof Letter Boxes (Intumescent Letterbox - Fire & Smoke Rated)
An economy priced Fire Proof Letter Box range in various finishes, all fire & smoke rated for 30 minutes. Letterboxes are fitted with an intumescent liner around the telescopic sleeve section of the letterplate. In the event of a fire the intumescent liner expands and seals the letterbox aperture. Fire & Smoke tested to BS 476 with a 30 min. rating. Particularly suitable for applications like post rooms and multiple occupancy residential buildings. With a fully sealed back plate and letter plate flaps there is no need for an integral brush seal.
Standard 10" Size - 272mm x 70mm : Cut out size 241mm x 57mm : Adjustable to door thickness 40-80mm
Commercial 12" Size - 306mm x 70mm : Cut out size 274mm x 57mm : Adjustable to door thickness 40-80mm
All sizes have a black ABS frame and choice of Satin Anodised Aluminium, Chrome Plated, Stainless Steel, Polished Silver, Polished Gold, Polished Brass.