In the Center Line method, sum total length of center lines of walls, long and short has to be found out. Find the total length of center lines of walls of the same type.Long and short have the same type of foundation and footing and they find the quantities by multi-plying the total center length by the respective breadth and height.

In this method, the length will remain the same for the excavation in a foundation for concrete in the foundation. For all footings and for the superstructure. (With slight difference when there are cross walls or the number of junctions).

Center Line Method Of Estimation
In center line method is quick but requires special attention and consideration at the junction, meeting points of cross walls, etc.