The size of mineral wool board is divided into metric size and imperial size in the unit system. This is because of the difference in the conversion of the unit system of mineral wool board sizes at home and abroad. In fact, our commonly used mineral wool boards are divided into nominal size and actual size in size.

The nominal size of the mineral wool board refers to the linear distance between the two adjacent parallel keels in the grid-shaped suspended ceiling when the mineral wool board is hoisted, that is, the size of the mineral wool board plus the keel edge that we can see after the hoisting is completed . The actual size of the mineral wool board refers to the size of the mineral wool board that we can actually measure. The actual size is usually smaller than the nominal size of the mineral wool board. Because the mineral wool board has to consider the width of the keel, installation errors, etc. during the installation of the mineral wool board, it is necessary to reserve a convenient installation space during the production and cutting of the mineral wool board; depending on the thickness of the supporting keel used by different manufacturers, usually Set aside 5-7mm. The actual size of the mineral wool board is more clearly reflected in the graded mineral wool. At this time, the size of the graded side of the mineral wool board will be clearly reserved, which is convenient for actual installation.

In actual statistical use, we call the size of the mineral wool board the nominal size of the mineral wool board, which is to facilitate the actual ceiling design and the use of the mineral wool board. The nominal sizes of common mineral wool board specifications are 300*600mm, 600*600mm, 600*1200mm. These are commonly used for ordinary square ceilings. The 300*600mm specifications are mostly used for mineral wool paste board ceilings; now the more popular strip mineral wool board Nominal sizes are: 300/400/600mm*1200/1500/1800/2100/2400mm, etc. The thickness of the mineral wool board is usually 9mm, 14mm, 15mm, 16mm, 18mm, etc., according to actual needs and the production capacity of the manufacturer. 19mm, 20mm, etc.