What is a first-class ceiling, a second-class ceiling and a third-class ceiling? I don't understand the decoration of my home. Thank you.

The "Grade I and Grade II" here does not refer to the level of the suspended ceiling, but refers to the shape, like gradient. A layer is added below the suspended ceiling, which is called Grade II, and Grade III is another layer on the basis of Grade II. This kind of multi-storey suspended ceiling can reduce the height and increase the sense of layering, so it is also more suitable for spaces with higher floors.

that is, the shape is only one level lower, that is, the ceiling with two planes and only one level is relatively simple. Usually, the ceiling is 12~15mm from the top, and the ceiling edge is 5cm thick (looks 5cm). However, due to the need to make reflective lamp troughs sometimes, the space for installing lamps should be reserved, so the first-level ceiling is generally 12~15mm down. The thickness of the first-class ceiling with light trough is about 6cm.

Extended information:

The two-level ceiling is slightly more complicated than the first-level ceiling. Multi-level ceiling is suitable for high-rise space. For example, when some pipes are below the suspended ceiling and the height is not enough, the suspended ceiling is only partially suspended, which is the secondary suspended ceiling. The height of the secondary ceiling is generally lowered by 2cm. If the floor height is high, the thickness of each level can also be increased. The height of the floor can be slightly 2~3 cm per level, not too little, otherwise the lamp tube can't be installed. If the lamp is not installed, it can be hung down by 5 cm per level.

The secondary suspended ceilings are all made of environmentally-friendly aluminum materials for modular production, without secondary processing, which completely eliminates pollution sources such as paint/plates, and has zero pollution construction and no harmful substances, which solves the serious problem of formaldehyde pollution in home decoration.

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