A construction takeoff is the process of analyzing and measuring the quantities of materials and labor required for a building project. It is a crucial step in the pre-construction phase, as it helps to ensure that all necessary materials are ordered and on hand before work begins.A construction takeoff is a detailed analysis of the plans and specifications of a building project. It is used to identify the materials, labor, and equipment needed to complete the project, and is critical for accurate budgeting and scheduling.