Fire Rated Intumescent Letterboxes
Our fire rated letter plates are designed to maintain the integrity of fire doors while still allowing safe and practical mail delivery. Fitted with intumescent liners, these letterboxes expand in the event of a fire to seal the opening and help prevent the passage of flames, smoke, and hot gases. Whether you’re upgrading existing doors or specifying new fire-rated assemblies, these units ensure compliance without compromising functionality.
Tested to Perform in Fire Conditions
Each fire rated letterbox in our range is independently tested and certified to meet FD30 and FD60 fire door specifications. The intumescent material activates at high temperatures, providing a reliable fire seal and reinforcing the door’s fire resistance. Available in a range of finishes, these plates are suited to residential, commercial, and multi-occupancy settings where safety and compliance are essential.
Easy Installation with a Discreet Finish
Engineered for quick installation, our intumescent letter plates are compatible with a wide range of door types and thicknesses. They have a clean, low-profile design that blends seamlessly into the door face. Whether for retrofitting or new installations, these letter plates offer an ideal solution for enhancing passive fire protection without compromising everyday usability.