According to the product type, natural decorative stone slabs in the national standard are divided into conventional slabs, thin slabs, ultra-thin slabs and thick slabs.
Regular board: 20mm thick
Thin plate: 10mm -15mm thick
Ultra-thin plate: <8mm thick (for buildings with weight reduction requirements, or when saving materials)
Thick Plate: Plates thicker than 20mm (for stressed floors or exterior walls)
The mainstream thickness of conventional slabs in the foreign stone market is 20mm. In order to pursue low prices in the domestic stone market, the thickness of slabs conventionally used in the market is lower than the national standard.
The influence of the thickness of the stone slab
impact on cost
Block cutting board, different thicknesses will affect the yield, the thinner the board, the higher the yield, the lower the price.
For example, the marble yield is assumed to be calculated by the thickness of the saw blade of 2.5MM.
The number of squares of large slabs per cubic meter of marble blocks:
18 thick can produce 45.5 square meters of plate
20 thick can produce 41.7 square meters of plate
25 thick can produce 34.5 square meters of plate
30 thick can produce 29.4 square meters of plate
The thinner the sheet, the weaker the compressive capacity:
Thin plates have poor compressive ability and are easy to break; thick plates have a strong compressive ability and are not easy to break.
disease may occur
If the board is too thin, it may cause the color of cement and other adhesives to reverse osmosis and affect the appearance;
Too thin plates are more prone to lesions than thick plates: easy to deform, warp, and hollow.
Because of its particularity, stone can be polished and refurbished after a period of use to make it shine again.
During the grinding and refurbishment process, the stone will be worn to a certain extent, and the stone that is too thin may cause quality risks over time.