Contemporary flush internal door with feature grooves and premium primer finish – this door is comprised of an MDF face with decorative shaped grooves. Certifire FD30 fire doors. The door core type is hollow, allowing it to be one of the most cost-effective options on the market. Bespoke measurements and upgrades can be offered on doors in this range. Rebated door pairs can be ordered from stock (not fire doors) with a short lead time.