A comprehensive construction cost estimation is necessary for foretelling the total cost of any structure under construction. it is an important fact to consider for cost management as well as for budget adherence. Materials and their quantity, design guideline and features, geographical area, shape and size of the facility are some of the important variables are considered while estimating the construction costs. Construction estimates can be prepared by researching the current market values for materials and labors. It can also be done by outsourcing experts or agencies. Now a lot of estimating software is available in the industry designed for contractors to estimate construction costs for any kind of project.