Quantity Takeoff and Cost Estimation Services
After completing the design of architectural, structural, mechanical, and electrical drawings, many clients or employers request a precise cost and time estimation from contractors or builders. To meet this need, quantity takeoff and cost estimation services are performed. The main goal is to calculate the quantities and volumes of work within the project and estimate costs based on these measurements.
At Parsa International Design & Build Group, these services are provided by experienced professionals in civil engineering and MEP (Mechanical, Electrical, and Plumbing).
What is Quantity Takeoff and Cost Estimation?
Quantity takeoff (QTO) refers to the process of measuring and calculating all the work items and materials needed to execute a construction project. Cost estimation uses this data to project the overall cost of construction, including materials, labor, equipment, and time requirements. This enables project owners to make informed decisions before starting any construction activities.
Two Main Methods of Quantity Takeoff:
1. Closed Takeoff (Unit Price Estimation)
In this method, material quantities and weights are calculated directly from technical drawings and contract documents. These values are then multiplied by unit prices (often based on the National Price List or relevant cost databases), resulting in item-wise pricing. The sum of all items gives the net cost of the project. When adjusted by specific coefficients, the final total project cost is obtained.
Key considerations include:
Determining the appropriate unit for each operation.
Applying engineering expertise and experience in precise calculations.
Unit prices include the cost of materials, labor, transportation, loading/unloading, fuel, machinery depreciation, water, and waste.
2. Open Takeoff (Detailed Cost Breakdown or Rate Analysis)
This method provides a more detailed and realistic estimate. Each activity from the QTO table is broken down into its cost components, including:
- Material costs
- Labor wages
- Contractor profit margin
- Equipment rental
- Machinery depreciation
- Project management overhead
This detailed rate analysis offers a highly accurate cost and time projection, essential for proper budgeting and planning.
Why Is Quantity Takeoff Important?
Once the Phase I and Phase II engineering designs (including architectural, structural, mechanical, and electrical plans) are approved and the execution details are finalized, the project enters the takeoff and estimation phase. Based on national standards (e.g., the Price List by the Plan and Budget Organization of Iran), an approximate completion timeline and total project cost will be provided.
This process ensures that clients completely understand both time and budget requirements before the project begins.
Specializing in Catering and Commercial Kitchen Projects
At Parsa EPC, we specialize in the design and construction of industrial kitchens and food courts. If you’re planning to develop a catering facility, food court, or commercial kitchen, you can access detailed service pages through the links below.