Estimating and Costing 
Assignment

1. Calculate the quantity of steel reinforcement required for a roof slab of 3 m x 6 m and fully resting over a wall of 300 mm thick on all sides. Details of reinforcement:
(i)10 mm dia main bars are provided in shorter span direction at 150 mm c/c. Alternative bars are bent up near the support and all bars are hooked at both ends.
(ii) 8 mm dia distribution bars are provided in longer span direction at 200 mm c/c. To hold the bent up bars in position 3 no’s distribution bars are provided on each side at top.
(iii) Cover: Bottom and top cover to reinforcement taken as 15 mm and end cover of 25 mm is provided.

2. Calculate the standard rent of a government residential building newly constructed from the following data:
Cost of land = Rs. 1,00,000/-
Cost of construction of the building = Rs. 4,00,000/-
Cost of roads within the compound and fencing= Rs. 20,000/-
Cost of sanitary and water supply works = 8% of the cost of the building.
Cost of electrical installation including fans = 10% of the cost of the building.
Municipal house tax = Rs. 4,000/-per Annum.
Water tax = Rs. 1,200/-per Annum.
Property tax = Rs. 1,000/-per Annum.