A construction estimate is only as complete as the categories it accounts for. This guide lists the major cost buckets used by professional estimators. It does not predict costs, prescribe multipliers, or auto-fill any field in the ConstrCalc® calculator. Enter your own values based on quotes you obtain locally.
Direct Costs
- Materials — cement, sand, aggregate, steel, bricks, timber, glass, paint, finish materials. Purchased at unit prices from suppliers.
- Labor — general labor + skilled labor (electricians, plumbers, carpenters). Tracked by hours or days at prevailing local rates.
- Equipment Rental — heavy equipment (excavator, crane, concrete mixer) and small tools. Priced by day or week.
- Legal / Professional — permits, architect fees, engineer fees, site surveys, inspections, insurance.
Indirect Costs
- Overhead — business operating costs distributed across projects (office rent, admin, insurance, marketing). Applied as a % of direct-cost subtotal.
- Profit — contractor's margin. Applied on (Subtotal + Overhead) in the ConstrCalc formula.
- Taxes — VAT / GST / sales tax on materials or the total invoice, per local jurisdiction.
Formula Chain (ConstrCalc)
Subtotal = Materials + Labor + Equipment + Legal
Overhead = Subtotal × Overhead%
Profit = (Subtotal + Overhead) × Profit%
Grand Total = Subtotal + Overhead + Profit + Taxes (when applied)
Every number in the output derives from a number you entered. There are no hidden multipliers.