Caliper, in the context of paper, refers to the measurement of the thickness of paper or paperboard. It is typically expressed in thousandths of an inch, denoted as "mils." This measurement is vital in the paper industry to determine the thickness of paper materials, helping ensure they meet specific thickness requirements for various printing, packaging, and manufacturing applications.


Paper Thickness


  1. "When designing packaging for fragile items, the caliper of the chosen paperboard must provide adequate protection and structural support."
  2. "The printing press operator adjusted the machine's settings to accommodate the precise caliper of the paper being used for the book's interior pages."
  3. "In the label printing industry, caliper measurements are crucial to ensure that labels adhere properly to various surfaces without tearing or causing issues during application."


When working with caliper measurements in the paper and board industry, consider the following recommendations:

Accurate Measurement: Use calibrated calipers or measurement tools to ensure the accurate assessment of paper or board thickness.

Application-Specific Selection: Choose paper or board with the appropriate caliper measurement that aligns with the demands and requirements of your specific application.

Quality Control: Implement quality control measures to verify that the caliper of paper materials meets the specified standards, preventing production issues.

Communication: Communicate effectively with suppliers, manufacturers, and printers to understand their caliper requirements, ensuring that the selected materials are suitable for the intended use.

Testing: Conduct tests and trials to assess the performance of paper or board materials concerning their caliper in real-world applications, such as printing, packaging, or labeling.

Consistency: Maintain consistency in the selection of paper materials with the right caliper to create uniform and high-quality products.