How to Write Up Construction Estimates

Visit the job site prior to writing a construction estimate.

Contractors develop estimates or bids for potential job opportunities that arise. A construction estimate contains the details about the scope of the work, the costs and any other important details of the project. When contractors calculate an estimate, they begin by investigating the project, determining what is needed and calculating the costs for the job. Contractors must be meticulous when calculating the amount, although most construction estimates are merely an estimation of the costs. The actual charges by the contractor may vary slightly.

Instructions

1. Meet with the customer at the location of the job, if possible. The customer can specifically tell you details of the project and provide you with the necessary documents, which include blueprints and specifications sheets.

2. Review the documents. After you know what the customer is expecting, begin looking over the blueprints and specifications sheets. These documents will provide you with the precise details of the job.

3. Calculate the materials you will need. Determine every type and quantity of material needed to complete the project. List each item and bring it to a lumberyard or supply center for a quote. These companies provide itemized quotes for contractors which allow the construction companies to provide accurate estimates. Many contractors bring the lists to several companies to find the cheapest overall bid.

4. Determine the cost of labor. After reviewing all documents and work to be completed, calculate the manpower needed to accomplish the job. Calculate an estimated amount of hours or days multiplied by the average worker's wage.

5. Create a written estimate on letterhead or using a template. Begin with the customer's name and contact information.

6. Include the costs of material, labor and any additional charges, such as for insurance or permits. Many contractors figure the amount of profit into the labor costs, while others add an extra fee for profit. Place a total cost at the bottom of the estimate.

7. Write any terms of the estimate at the very bottom. Include the date the estimate is good through and any additional relevant information that the customer may need to know.

References

• The Contractor's Group: Construction Estimating Free Tutorial