Constructing a building isn’t easy. It requires a lot of materials, labourers, money and most important an accurate plan. Yes, an accurate plan is necessary before starting the construction. You need to know the exact amount of money, time, materials that will be required for the construction work. This accurate plan can be termed Quantity Takeoff . By accurate doesn’t mean that there can’t be errors. It just means that the calculation should be near to accuracy. Think of the situation when you didn’t give much time to planning before construction. You just estimated the amount of material, money and time as per your experience without looking at the facts. As a result, two things can be possible. Either the work will get extended longer than the estimated time or can be finished before the estimated time. It’s possible that you order extra materials than a requirement or you may feel a lack of materials. Therefore, you must give enough time to plan about the material, mon...