The estimation of the quantities of various items of a building such as earth work in excavation, concrete in foundation, brick work in foundation and plinth,brick work in super structure, etc., may be made by the following methods:
- Center line method
- Long and short wall method
In this method, the center line length of walls in a building is multiplied by the breadth and depth of the respective item to get the total quantity of the item. In case of partition or verandah walls joining with the main walls, the center line is reduced by half of the breadth of the layer of the main wall at the same level.
Suitability: This method is especially suited for estimating the circular, hexagonal, octagonal, etc. shaped buildings.
2.Long and short wall method:
In this method, the longer walls are generally treated as long walls and the shorter or partition walls. The long walls are measured out-to-out i.e. center to center length minus half projection one side and half projection on the other side.
Suitability: This method is mostly used irrespective of variable sections of walls.
No comments:
Post a Comment