Honeycomb paperboard, also known as honeycomb panels, is available in various thicknesses to suit different applications and requirements. The common thicknesses of honeycomb paperboard typically range from 6 mm (0.24 inches) to 100 mm (3.94 inches), although it can vary depending on the specific manufacturer and application.

The thickness of honeycomb paperboard is often chosen based on factors such as the desired strength, load-bearing capacity, and the specific application it will be used for. Thicker honeycomb paperboard panels generally offer higher strength and stiffness, while thinner panels are lighter and more flexible.

For packaging applications, honeycomb paperboard is often available in thicknesses between 10 mm (0.39 inches) to 25 mm (0.98 inches) to provide adequate cushioning and protection.

In construction and building materials, honeycomb paperboard panels may range from 20 mm (0.79 inches) to 50 mm (1.97 inches) in thickness, depending on the intended use and structural requirements.

It's important to note that the thickness of honeycomb paperboard can vary based on the specific manufacturer and customization options. Different industries and applications may have specific thickness requirements, so it's advisable to consult with the manufacturer or supplier to determine the most suitable thickness for your intended use.