particulars
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quantity
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unit
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rate
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per
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amount
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The detailed estimate should accompanied with:
Report
Specification
Drawings (plans, elevation, sections)
Design charts and calculations
Standard schedule of rates.
This method is generally used for multistoreyed buildings. It is more accurate that the other two methods viz., plinth area method and unit base method. The cost of a structure is calculated approximately as the total cubical contents (Volume of buildings) multiplied by Local Cubic Rate. The volume of building is obtained by Length x breadth x depth or height. The length and breadth are measured out to out of walls excluding the plinth off set. The cost of string course, cornice, corbelling etc., is neglected.
The cost of building= volume of buildings x rate/ unit volume.
CHAPTER-08
At the estimate stage the size of various components of work are assumed from the drawings and the approximate cost of every item each calculated based upon data from the department and schedule of rates applicable to the locality. At the construction stage all works executed must be measured and entered in a permanent record called measurement book and payment effected based on the quality of work done and the agreed rate.
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