Construction Cost Estimating


Basic Estimation Construction Cost

The estimation of construction cost is the process of forecasting the cost of the building. Builders and the clients estimate the cost of each and every project. They estimate the cost to know about the scope of the project and allocate the budgets. If the contractor and the clients estimate the right amount of cost then builders don’t lose their money without any reason and also customers don’t need to overpay.

This is the main element of earned value management. It is a project management technique. It can track the performance of the project against the total time and cost estimate.

Cost estimation is really very tough for development projects like large civil projects. Cost estimation increases accountability, transparency, and it also manages the project very properly. The perfect cost estimation depends upon many things.

  • The quality of the project plan.
  • Experience of the estimator.
  • The skill of the estimator.
  • The perfection of cost estimation.
  • The quality of the tool and the procedure.

In some cases, contractors and subcontractors prepare the cost estimates. Though most cases the construction salesperson calculates the cost estimation.

The Construction Estimation Process

Commission a Project

It is a verification process. This process ensures the design of building, constructs, and deliver projects as per the requirement. This process starts at the beginning of the construction process and can last up to a year.

Determine the Requirements

The first step is the planning step in a construction project. This planning step meets all requirements like the functions, cost, location, and other legal requirements.

Form a Design Team

In this step, architects create many designs. Planning accordingly advances from a schematic plan stage, when the draftsman presents a significant level plan to the proprietor for endorsement, to a plan improvement stage, when the planner works with the plan advisors to settle on points of interest of the development plan.

The last advance is the development records stage, i.e., making development drawings and determinations from which the project worker will assemble. The particulars, which different members in the development cycle read, show up in a standard organization called the MasterFormat, which the Construction Specifications Institute created. Assessors produce and reexamine quotes for the venture as the modeler fleshes out the plan.

Offering Based on the Scope of Work

Once the development reports are concluded, they are delivered to project workers who wish to offer on the task. Alongside these offering reports, they remember directions for how to submit offers, an example of the agreement arrangement, and monetary and specialized necessities for project workers.

These records, which successfully characterize the extent of the work, are the premise on which workers for hire set up their evaluations. In addition to the most proficient method to build up articulation of work, counsel this guide.

To guarantee reasonable offering, all workers for hire get similar data, and the task proprietor for the most part chooses the least qualified bidder. This offer organization format can assist you with arranging your gauge.

Different Types of Construction Cost Estimation

1st step - Users can use an order of magnitude estimate to direct the overall feasibility of construction.

2nd step - An estimate is produced in line with schematic design.

3rd step - During the design development phase, an estimate is made.

4th step - An estimation is based on the construction drawing and the specifications.

5th step - Contractor prepares the estimation based on the construction documents.

The point of view of Cost Estimation

Cost estimators use the Uniformat system of viewing a building as a set of seven functional steps. The parts are:

According to the Cost Estimators

1. Substructure
2. Shell
3. Interiors
4. Services
5. Equipment and furnishings
6. Special construction
7. Building site work

According to the constructors

1. Taking off quantities
2. Squaring
3. Abstracting
4. Billing

The components of Construction Cost Estimate

Quantity take-off, Labor hour, Labor rate, Material prices, Equipment Costs, Subcontractors, Quotes, Indirect Costs, Profits, Contingencies, Escalation, Bonds, Operations, and Maintenance Costs.

The Approaches to Construction Cost Estimation

  • The function of production
  • Stick estimation
  • Empirical Cost Inferenceestimate the unit cost
  • Allocate the joint costs

Applications and Software of Cost Estimation

Cost-Related Inputs and Processes: Estimating software can offer access to cost databases, calculate taxes and the costs of labor and materials, allow estimators to adjust prices to local contexts, feature standard-size room lists, as well as item or activity lists, and integrate with accounting software. Some offer worksheets for specific trades and calculators for standard costs.

Generating Estimates: Estimating software can perform measurements and take-offs, count objects, allow estimators to mark up construction drawings, and generate bills of quantities.

Documentation: Estimating software offers templates for proposals and cover letters, generates proposals and cost reports, and maintains records of past projects.

Other Features: Some software offers support for macros, online collaboration, and the ability to integrate with computer-aided design files.

Basic Estimation Construction Cost
Image Courtesy: