The White Factory Finished Horizontal 5 Panel Fire Door is a valuable addition to our collection of standard 35mm doors. These 44mm thick FD30 rated internal doors offer the same features, quality, and finish as the standard White Prefinished door. However, they are constructed from heavyweight solid core, providing extra weight and security in case of a fire. Designed and manufactured to resist the spread of fire for a full 30 minutes, as indicated by their FD30 rating, these doors are both modern and stylish. They are supplied with 20mm solid timber lippings all around, enabling trimming to suit specific opening sizes.