Paperboard Thickness and Grammage Conversion Table
In China, the thickness of the paperboard is measured in milimeters, while point is used in USA, which is abbreviated to pt. The fomulas below can be used for the conversion of the 2 units.
1 inch =25.4mm = 1000 pt.
1 pt = 0.0254mm
For example, 60pt=60*0.0254mm=1.524mm. The 60pt chipboard in USA refers to the 1.5mm greyboard in China, which is very ideal for the small rigid paper boxes. When you need a strong rigid box, 80pt chipboard can be used, which is 2mm thick greyboard in China.
– 标准厚度(mm) – 标准厚度(mm)
10PT 0.254 11PT 0.279
12PT 0.305 13PT 0.330
14 PT 0.356 15PT 0.381
16 PT 0.406 17PT 0.432
18 PT 0.456 20 PT 0.508
Below is the paper details used at DE Printed Box.
|白卡纸，单铜(SBS C1S)||双铜纸(SBS C2S)||哑粉纸,铜版纸(Art Paper)||双胶纸(Woodfree Paper)|
|SBS C1S（白卡)PT/GSM Comparison Table||SBS C2S(双铜)PT/GSM Comparison Table|
|灰底白板(Duplex Board with Grey Back)||白底白板(Duplex Board with White Back)|
Note: 1. The duplex board with grey back is also referred to as the while lined chipboard with greyback, clay coated new back(CCNB).
2. The duplex board with white back is also referred to as the white lined chipboard with white back.
3. The wouldfree paper is also referred to as the offset paper
4. The SBS C1S, C2S is also referred to ivory board or art paper in China. C1S means that the paper is coated on only one side of the paperboard. C2S means that both sides of the paperboard are coated. Ivory paperboard in China usually refers to the SBS C1S. Such papers are used to make the luxury printed paper boxes and cosmetic boxes.
5. The art paper is also called coated paper.