How to determine the total cost of labors in a construction work

This is another nice presentation from S.L. Khan, the renowned civil engineer. In this video tutorial, one can learn the detail process for working out the labor cost for particular construction work.

The labor cost is calculated based on the following steps :-

1) Find out the number of labor for total work.
2) Guess wages for labors (it is assumed from local workers wages)
3) To obtain total cost of labor, the number of Labor is multiplied with their wages

To determine the desired labor for total work (per unit), a tabular format is used. In this table, there are various fields like serial number, constructional work, unit, laborers etc. In laborers section, there are mason, cooli, water man. The constructional work field comprises of brick work, cement concrete work, R.C.C. work, flooring etc.

Guess wages for labors. (it is assumed from local workers wages).

To obtain total labor cost, multiply number of labor with their wages.

To learn the process more clearly, the solution is given to the following problem :-

Example: Workout the labor cost for 15000 cft along with first class brick work in ground floor :-

Solution:
Number of labors:
Mason = 2.5/100 x 15000 = 375 numbers (assume number of masons in 100 cft are 2 ½ i.e 2.5)
Coolies = 4 5/6/100 x 15000 = 725 numbers (assume number of coolies in 100 cft are 4 5/6)

Water man = 0.75/100 x 15000 = 113 numbers (assume number of water mans in 100 cft are ¾ i.e. 0.75)
Assume per day and per capita wages of mason is rupees 1500
Assume per day and per capita wages of coolie is rupees 800
Assume per day and per capita wages of water man is rupees 500

To determine the total cost of individual laborers, multiply number with wages :-

Mason = 375 x 1500 = rupees 562500
Coolies = 725 x 800 = rupees 580000
Waterman = 113 x 500 = rupees 56500

To determine the total costs of employed laborers, just sum up the total cost of mason, coolies and waterman i.e. 562500 + 580000 + 56500 = Rupees 1199000

Video Source: SL Khan