What is the unit of measure for roll batt insulation?

Roll batt insulation is typically measured in linear feet because it is sold in long rolls that can be cut to fit the specific dimensions required for a project. This measurement reflects the length of the insulation material that can be used continuously without interruptions. Each roll will have a certain width and thickness, but the linear footage allows contractors to easily calculate how much material they need based on the area they are insulating.

By contrast, sheets, square yards, and cubic meters are not standard measures for roll batt insulation. Sheets would imply a rigid or flat product, which does not apply to the flexible nature of roll insulation. Square yards would measure area but is not the most practical way to purchase or apply roll insulation intended for easy manipulation and installation. Cubic meters is a volume measurement that is not relevant for quantifying thin, flat products like insulation which relies more on length when purchased in rolls.