Estimation
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1. The document provides calculations for material quantities needed for various construction items in a building project. 2. It calculates the cement, sand, coarse aggregate, bricks, tiles, timber and other material needs for items like foundations, walls, floors, roof insulation, doors and windows. 3. The summary at the end consolidates the total quantities of key materials including 220.68 cubic feet of cement, 740.26 cubic feet of sand, 528.92 cubic feet of coarse aggregate, and 16570 bricks.
Estimation
- 2. 1- CALCULATIONS 1. Excavation in Medium soil Quantity from BOQ item No. 1 = 1024.52 cft Output of one labourer working 8 hrs = 75 cft 04 labourers are required for 3 ½ days to excavate 1050 cft earth.
- 3. 2. PCC (1:4:8) Quantity of BOQ item No.3 (Foundations) = 146.27 cft Quantity of BOQ item No.11 (Floors) = 142.07 cft Total = 288.34 cft Dry material for 100 cft of cement concrete = 154 cft Note: Materials (i) Cement=154x1x288.34/(100x13) = 34.15cft (ii) Sand=154x4x288.34/(100x13) = 136.62 cft (iii) Coarse aggregate =154x8x288.34/(100x13) = 273.25 cft
- 4. 3. Ist Class Burnt brick work in foundation in cement sand mortar (1:6) Quantity of BOQ item No.4 = 484.21 cft Note: Bricks for 100 cft of brick work = 1350 Nos. Dry mortar for 100 cft of brik work = 30 cft Material (i) Bricks=1350x484.21/100 = 6537 Nos. (ii) Cement=30x1x484.21/(7x100) = 20.75 cft (iii) Sand=30x6x484.21/(7x100) = 124.51cft
- 5. 4. 1 ½” thick PCC (1:2:4) in DPC including two coats of hot bitumen & 2 sheets of Polythene. Quantity of BOQ item No.5=55.50x0.125 = 6.93 cft Note: (i) Dry material for 100 cft of cement concrete = 154 cft (ii) Bitumen for 100 sft of DPC (first coat) = 15 Kg (iii) Bitumen for 100 sft of DPC (second coat) = 10 Kg Material (i) Cement=154x1x6.93/(100x7) = 1.52 cft (ii) Sand=154x2x6.93/(100x7) = 3.04 cft (iii) Coarse aggregate=154x4x6.93/(100x7) = 6.09 cft (iv) Bitumen =25x55.50/100 = 13.87 Kg (v) Polythene Sheet (2 x 55.5) = 111.0 sft
- 6. 5. Ist Class Burnt brick work in Super structure in cement sand mortar (1:4) Quantity of BOQ item No.6 = 743.17 cft Note: (i) Bricks for 100 cft of brick work = 1350 Nos. (ii) Dry mortar for 100 cft of brik work = 30 cft Material (i) Bricks=1350x743.17/100 = 10033 Nos. (ii) Cement=30x1x743.17/(5x100) = 44.59 cft (iii) Sand=30x4x747.13/(5x100) = 178.36 cft
- 7. 6. Reinforced cement concrete (1:2:4) Quantity of BOQ item No.7 = 226.39 cft Note: Dry material for 100 cft of cement = 154 cft concrete Materials (i) Cement=154x1x226.39/(100x7) = 49.80 cft (ii) Sand=154x2x226.39/(100x7) = 99.61 cft (iii) Coarse aggregate =154x4x226.39/(100x7) = 199.22 cft (iv) Mild steel round bars = 1529 lbs = 693.55 Kg (Note: 1 Kg = 0.454 lbs)
- 8. 7. Roof insulation Quantity of BOQ item No.9 = 430.72 sft Note: (i) Brick tiles for 100 sft roof insulation = 360 Nos. (ii) Dry mortar for 100 sft = 9.00 cft (iii) Bitumen for 100 sft of DPC (first coat) = 15 Kg (iv) Bitumen for 100 sft of DPC (second coat) = 10 Kg Material (i) 1 ½” thick brick tiles = 1551 Nos. (ii) Cement=9x1x430.72/(4x100) = 9.69 cft (iii) Sand=9x4x430.72/(4x100) = 29.07 cft (iv) Bitumen =430.72/100 = 107.68 Kg (v) Mud /Earth filling=430.72x0.42 = 180.90 cft (Vi) Polythene sheet (2 x 430.72) = 862 sft
- 9. 8. Sand under floors Quantity of BOQ item No.10 = 213.11 cft Material Sand = 213.11 cft 9. 1 ½” thick cement concrete (1:2:4) in floors Quantity of BOQ item No.12=457.80x0.125 = 57.23 cft Note: (i) 1 ½” = 0.125 ft = 154 cft (ii) Dry material for 100 cft of cement concrete Materials (i) Cement=154x1x57.23/(100x7) = 12.59 cft (ii) Sand=154x2x57.23/(100x7) = 25.18 cft (iii) Coarse aggregate =154x4x57.23/(100x7) = 50.36 cft
- 10. 10. 1/2” thick cement plaster in cement sand mortar (1:3) Quantity of BOQ item No.13 = 3197.07 sft Note: Dry mortar for 100 sft of ½” thick cement plaster = 6 cft Material (i) Cement=6x1x 3197.07/(4x100) = 47.96 cft (ii) Sand=6x3x 3197.07/(4x100) = 143.87 cft 11. Wood work in door, windows ventilators Quantity of BOQ item No.14 (i) Doors = 56.00 sft Quantity of BOQ item No.14 (ii) Windows = 63.00 sft Note: (i) Timber for 100 sft of Panelled Doors = 13 cft (ii) Timber for 100 sft of Glazed windows and Ventilators = 8 cft Material (i) Timber for doors =13x56/100 = 7.28 cft (ii) Timber for windows and Ventilators = 5.04 cft =8x63/100 Total = 13.32 cft
- 11. 12. White wash / Distemper Quantity of BOQ item No.16 = 1872.9 sft Note: Lime for 100 sft of white wash (one coat) = 1.00 Kg Material Lime for three coats=1x3x1872.9/100 = 56.24 Kg 13. Weather Shield Quantity of BOQ item No.17 = 1143.45 sft 14. Earth filling under floors Quantity of BOQ item No.2 = 230.87 cft Material Earth for filling = 230.87 cft
- 12. 2- SUMMARY S.No. Description of material Quantity 1. Cement 220.68 cft or (From 2,3,4,5,6,7,9,10) 177 Bags 2. Sand 740.26 cft (From 2,3,4,5,6,7,9,10) 3. Coarse aggregate 528.92 cft (From 2,4,6,9) 4. Mild steel round bars (item No: 6) 693.55 Kg 5 Burnt bricks 1st class 16570 Nos. (From 3,5) 6 1/2” thick Brick tiles (item No: 7) 1551 Nos. 7 Bitumen 121.55 Kg (From 4,7) 8 Polythene sheet 973 sft (From 4,7) 9. Timber 13.32 cft (item No: 11) 10. Lime 56.24 Kg (item No: 12) 11. Mud/Earth filling 411.77 cft (From 7,13)