Grey cardboard(CCNB) thickness and stiffiness

Greyboard Paper Thickness and Stiffness

At NSW printing company, we use high-quality greyboard and CCNB to manufacture custom cardboard gift boxes, paper tubes, magnetic closure boxes, and drawer boxes. Different greyboard grammage will lead to different thicknesses, while the different quality of greyboard will lead to different stiffiness. Our clients can choose the suitable thickness greyboard to make their packaging gift boxes. Of course, the level of the grey cardboard will affect the final price/cost. Here is an introduction to the greyboard thickness, grammage, moisture content, and unit ton price.

Lift-off Lid Cardboard Gift Box(1.5mm greyboard)

Conversion Between Greyboard thickness and grammage:

If you want to make the cardboard gift box for your products, you need to make sure of the thickness of the grey cardboard. The greyboard is also called chipboard paper. The grey cardboard with white inside liner paper is called CCNB. Our common cardboard boxes are using the thickness from 1.5mm to 2mm(1000gsm to 1400gsm). You can also use the following formula to converse grammage to thickness.

Thickness(mm) = Grammage(gsm)*0.0015

It is the estimated thickness and the accurate thickness will have ±0.1mm deviation.

Moisture Content of the Greyboard affects the Stiffiness

The moisture content affects the greyboard's stiffness. The moisture degree varies from 8% to 13%. When the moisture content is low, the cardboard gift box will have very good stuffiness, resistant to bending. Also, the price of the low moisture content greyboard will be higher than the normal greyboard. For the grade A greyboard, the unit ton price would be around USD$800-1000 while the ordinary greyboard would be around USD$500-700.

2020.9.18 by Damon