Setting a realistic budget in the early stage of construction project is very important for successful completion. Many projects face delays and cost problems because the budget was not planned properly at the beginning. This is why preliminary estimates are very helpful for contractors and project owners. With accurate preliminary estimates, it becomes easier to understand the expected cost of materials, labor, and equipment before the project starts. It also helps in better decision making, planning resources, and avoiding unexpected expenses during construction. Using proper preliminary estimates in the early planning phase can improve project control and increase the chances of completing the project within the planned budget.