Honeycomb paperboard, also known as honeycomb panel or honeycomb cardboard, is a lightweight and structurally strong material commonly used in various industries for packaging, construction, and other applications. The specifications of honeycomb paperboard can vary depending on its intended use, but here are some commonly encountered specifications:

1. Cell Size: Honeycomb paperboard consists of a series of hexagonal cells that form the characteristic honeycomb structure. The cell size refers to the diameter of these hexagonal cells, and it can range from small to large. Common cell sizes are typically between 3/8 inch (9.5 mm) and 1 inch (25 mm).

2. Thickness: Honeycomb paperboard comes in various thicknesses, which determine its strength and load-bearing capacity. The thickness can range from as thin as 3/8 inch (9.5 mm) to several inches (50+ mm), depending on the specific application.

3. Material: The core material of honeycomb paperboard is typically made from recycled paper or paperboard, with or without additional additives or adhesives. The choice of material can influence the strength, rigidity, and other properties of the honeycomb panel.

4. Facing Materials: Honeycomb paperboard may have facing materials applied to one or both sides to enhance its performance or provide specific characteristics. Common facing materials include cardboard, corrugated board, plywood, or other composite materials.

5. Density: The density of honeycomb paperboard refers to the amount of material packed into a given volume. It is typically measured in pounds per cubic foot (lb/ft³) or kilograms per cubic meter (kg/m³). The density can vary depending on the specific grade and thickness of the honeycomb panel.

6. Strength and Load-Bearing Capacity: Honeycomb paperboard is known for its excellent strength-to-weight ratio. The specific strength and load-bearing capacity can vary depending on the thickness, cell size, and material used.

It's important to note that the specifications of honeycomb paperboard can be customized to meet specific application requirements. Therefore, it's recommended to consult with honeycomb paperboard manufacturers or suppliers to determine the exact specifications available for your specific needs.