Estimation means the process of calculating the ‘probable cost’. It is very important to know the estimate of a proposed project to plan,design and arrange the required fund at regular intervals. We prepare the estimate as per designed specification and datas according to the requirements before the commencement of a project. This helps to organize the work in a systematic and strategic manner in an order of sequence without affecting the time scale. Estimate is normally prepared by considering the quality and prevailing market rates of men and materials.