When reviewing a construction estimate, most people focus on visible line items like concrete, steel, and finishes, but an equally important category often goes overlooked: General Conditions. General Conditions include the essential, non-permanent costs required to manage and execute a construction project, such as site supervision, temporary utilities, jobsite trailers, safety measures, equipment rentals, scheduling, cleanup, and project management. These costs do not become part of the finished structure, but they are critical to keeping the project safe, organized, compliant, and on schedule. Because General Conditions are typically time-dependent, project delays can significantly increase them, making accurate estimating crucial. Understanding what General Conditions are—and why they matter—helps owners, contractors, and estimators better evaluate project costs and avoid surprises during construction.