- 26
- Sep
UL Wooden Door Fire Rated
Wooden fire doors are divided into painted wooden fire doors and paint-free wooden fire doors. The lacquered wood fire door structure is added with a layer of perlite board outside, and a layer of MDF is added on the outside. The structure of the paint-free board wooden fire door is that there is no outermost layer of the code board, and the paint-free board is directly attached to the fire board.