Being a time-consuming practice, detailed cost estimation is primed when all construction project documents are completed. Knowledge and creativity are indispensable for organizing an cost estimate of construction. During construction, different technologies, methods, and processes are used by different contractors. Thus, estimators require experience, creativity and knowledge to implement the task of estimation effectively. Detailed cost estimation entails two vital steps, namely, pricing and quantity takeoff or quantity estimate. The project is divided by the estimator into separate work items while preparing this estimate, and the material quantities are estimated by him for individual item of work. This process is referred to as quantity takeoff. Furthermore, material, equipment and labor required for carrying out a work item are decided on the basis of the construction method and given specifications.