Which factor is NOT typically included when calculating the total installed cost of materials?
Correct Answer
C) General contractor's overhead
General contractor's overhead is applied to the total project cost, not specifically to material costs. Material installed costs include the material price, waste, tax, and delivery.
Why This Is the Correct Answer
General contractor's overhead is a project-level cost that covers administrative expenses, office costs, and profit margins applied to the entire project. It is not a direct component of material installed costs. Material installed costs specifically include only the direct costs associated with purchasing, transporting, and installing the materials themselves, such as material price, waste allowance, sales tax, and delivery fees.
Why the Other Options Are Wrong
Option A: Material waste allowance
Material waste allowance is a standard component of installed material costs. It accounts for inevitable material loss during construction due to cutting, breakage, spoilage, and normal construction practices. This allowance is typically calculated as a percentage of the base material cost.
Option D: Transportation and delivery costs
Transportation and delivery costs are essential components of installed material costs. These costs cover freight, shipping, and delivery charges necessary to get materials from the supplier to the job site, making them direct material-related expenses.
Memory Technique
Remember 'WTD' for material costs: Waste, Tax, Delivery. Overhead flies 'over' the entire project, not just materials.
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