The size of artificial board is generally: 2440mm (length) x 1220mm (width) x thickness. The thickness of flame retardant board is generally the same as that of plywood, but there are not so many types. The common ones are 9mm, 12mm, 15mm, 16mm, and 18mm.

According to the water resistance and moisture resistance, the fire rated plywood is divided into the following 4 types:

1. One type is weather-resistant, boiling water-resistant and flame-retardant plywood, which has the advantages of durability, high temperature resistance, and steam treatment.

2. The second-class flame-retardant board is a water-resistant flame-retardant board, which can be dipped in cold water and dipped in hot water for a short time.

3. The third type is a moisture-resistant flame retardant board, which can be dipped in cold water for a short time and is suitable for indoor use at room temperature. For furniture and general construction purposes.

4. The fourth type is a non-moisture-resistant flame retardant board, which is used in indoor conditions. They are mainly used for buns and general-purpose flame retardant boards. Basswood, Ash, Birch, Elm and Poplar.