Building Cost Estimator

How do you estimate a building?

Before you directly start calculating quantity, you must precisely and correctly read the construction drawing.

  1. Check the dimension of each block is provided or not.
  2. The check Schedule of the opening is there.
  3. Check the specification of work.
  4. Check the thickness of the wall is the same or changes.

How do you calculate building costs per square foot?

All you need is the total construction amount and the total square footage of the project. Example: If you have a construction total of $200,000 and you are building 1,800 square feet you divide $200,000 by 1,800 to get $111.11 per square foot (200,000/1,800=111.11).

What are the three basic types of cost estimating?

The three types of cost estimates are design, bid, and control estimates. Design estimates are prepared in the project preliminaries which gives the order of magnitude of the project cost.

How to Calculate Building Area

  1. Measure the length and width of each room by measuring adjacent walls. Video of the Day.
  2. Multiply the length to the width for the area of each individual room. …
  3. Add the area figures for each room in order to obtain the total area or square footage for the entire building.

What is a Gray Structure?

Gray structure, in terms of construction, includes walls, roof, and plastering. None of the services like electricity, sewage water, woodwork, and painting are included in gray structure works.

The Elements of a Construction Cost Estimate

  • Quantity Take-Off: Developed during the pre-construction phase, a quantity take-off measures the materials and labor needed to complete a project. 
  • Labor Hour: The labor hour, or man-hour, is a unit of work that measures the output of one person working for one hour. 
  • Labor Rate: The labor rate is the amount per hour one pays to skilled craftsmen. This includes not just the basic hourly rate and benefits, but the added costs of overtime and payroll burdens, such as worker compensation and unemployment insurance. This template will help you keep track of wages and labor hours.
  • Material Prices: Since the cost of materials is prone to fluctuation based on market conditions and such factors as seasonal variations, cost estimators may look at historical cost data and the various phases of the buying cycle when calculating expected material prices. 
  • Equipment Costs: Equipment costs refer primarily to the cost of running, and possibly renting, heavy machineries, such as cement mixers and cranes. It’s important to note that the equipment in use influences how quickly you can complete the project, so the use of equipment actually impacts many costs outside of those directly associated with running the equipment. 
  • Subcontractor Quotes: Most contractors will hire multiple specialist subcontractors to complete parts of the construction. You add these subcontractors’ quotes to the contractor’s total estimate. (It can be helpful to use a tracker to collect all the subcontractor documentation in one place.