The costs of running the construction site itself, such as the site trailer, superintendent, and temporary power.
General conditions costs are the project-specific overhead costs required to support construction operations, including the site superintendent's salary, project engineer, temporary facilities (trailer, fencing, utilities), safety equipment, surveying, equipment rentals, and insurance premiums. General conditions are included in the contractor's bid or GMP as a separate line item and typically represent 5–15% of total construction cost depending on project size and duration.
The contractor's general conditions costs of $2.1M covered 18 months of superintendent salary, trailer, temporary utilities, and site security for the hotel project.
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