Labor factoring is used to adjust the labor units required for a takeoff, based on installation standards. To select a labor factor condition, click the list box to the right of the Lb Factor button.
When you enter a value in a specific labor factor for a takeoff, the labor units are adjusted based on the factor assigned. Labor factors may include such installation conditions as a suspended ceiling, slab, exposed @ 30’, and so on.
Additional resources:
Labor Factoring in Takeoff