The surface material of fire-retardant board is made by impregnating kraft paper in resin, then processed under high temperature and pressure to produce a decorative surface material for indoor use. Fire-retardant board is also known as high-pressure decorative board, a name that conveys its applications and characteristics. It boasts strong resistance to abrasion, heat, impact, alkali, fire, mold, and static electricity. Due to these properties, it is widely used in indoor desktops, cabinets, store props, door panels, and wall decorations. Fire-retardant board is easy to install and does not require painting. In everyday use, many people focus only on its fire-resistant aspect while overlooking its decorative qualities. The board has high plasticity and can be made into various decorative materials, such as wood grain, stone, and metal effects. Its advantages not only satisfy visual needs but also offer cost-effectiveness, ease of installation, and avoid the need for indoor painting, reducing pollution and accelerating the construction process. The maintenance of fire-retardant board is similar to that of painted ceilings, but when maintenance is needed, it is important to ensure the ceiling's high-performance and aesthetic qualities.