Concrete quantity calculation is a crucial aspect of any construction project involving the use of concrete. This could be a slab, footing, column, or any other shape. If it’s a simple shape like a rectangle or a cylinder, you can use the appropriate formula to calculate the volume.

Given,

pcc size = (1.6m*0.1m*0.1m)

footing size = (1.5m*1m*0.3m)

column size = (3.5m*0.3m*0.3m) *(height of column below ground level is 0.5m)*

floor height = 3m

beams —

long beam size = (3.66m*0.3m*0.25m)

short beam size = (3m*0.3m*0.25m)

floor thickness at ground level = 0.15m

first floor slab thickness = 0.125m

concrete mix ratio = 1:2:4 (M20)

Floor area = 13.72m*11m (45’*36′)

stair case —-

area of stair case = 3.66m*2.286m = (12’x7’6″)

Tread = 0.3m

Riser = 0.2m

step length = 1.143m

landing size = 2.286m*1m*0.1m

waist slab & landing thickness = 0.1m

No. of riser in flight1 = 9

No. of riser in flight1 = 7

Total no. of steps = 9+7 = 16

## concrete quantity in Pcc

concrete volume = (length*width*depth)

= 1.6*0.1*0.1 = 0.016m^3

Total no. of pcc = 20

Total volume = 0.016*20 =** 0.32m^3**

Dry volume = 0.32*1.54 =** 0.4928 ~ 0.5m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*0.5 = 0.0715m^3

Sand Quantity = (2/7)*0.5 = 0.143m^3

Aggregate Quantity = (4/7)*0.5 = 0.286m^3

**No. of cement bags required = 0.0715*(1440/50) = 2 bags**

**Sand Quantity Required = 0.143*35.32 = 5.05 ~ 6cft**

**Aggregate Quantity Required = 0.286*35.32 = 10.1 ~ 11cft**

## concrete quantity in Footing

concrete volume = (length*width*depth)

= 1.5*1*0.3 = 0.45m^3

Total no. of footing = 20

Total volume = 0.45*20 = **9m^3**

Dry volume = 9*1.54 = **13.86m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*13.86 = 1.98m^3

Sand Quantity = (2/7)*13.86 = 3.96m^3

Aggregate Quantity = (4/7)*13.86 = 7.92m^3

**No. of cement bags required = 1.98*(1440/50) = 57 bags**

**Sand Quantity Required = 3.96*35.32 = 139.86 ~ 140cft**

**Aggregate Quantity Required = 7.92*35.32 = 279.73 ~ 280cft**

## quantity in Column

concrete volume = (length*width*depth)

= 3.5*0.3*0.3 = 0.315m^3*

Total no. of column = 20

Total volume = 0.315*20 =** 6.3m^3**

Dry volume = 6.3*1.54 = **9.702m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*9.702 = 1.386m^3

Sand Quantity = (2/7)*9.702 = 2.772m^3

Aggregate Quantity = (4/7)*9.702 = 5.544m^3

**No. of cement bags required = 1.386*(1440/50) = 39.91 ~ 40bags**

**Sand Quantity Required = 2.772*35.32 = 97.907 ~ 98cft**

**Aggregate Quantity Required = 5.544*35.32 = 195.81 ~ 196cft**

## quantity in Beam

concrete volume in long beam = (length*width*depth)

= 3.66*0.3*0.25 = 0.275m^3*

No. of long beams = 22

Total volume = 0.275*22 = **6.05m^3**

concrete volume in long beam = (length*width*depth)

= 3*0.3*0.25 = 0.225m^3*

No. of short beams = 9

Total volume = 0.225*9 = **2.025m^3**

Total volume of Concrete in beams = 6.05+2.025 = **8.075m^3**

Dry volume = 8.075*1.54 = **12.44m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*12.44 = 1.78m^3

Sand Quantity = (2/7)*12.44 = 3.554m^3

Aggregate Quantity = (4/7)*12.44 = 7.11m^3

**No. of cement bags required = 1.78*(1440/50) = 51.26 ~ 52bags**

**Sand Quantity Required = 3.554*35.32 = 125.175 ~ 126cft**

**Aggregate Quantity Required = 7.11*35.32 = 251.125 ~ 252cft**

*Note :- here, in the case of beam, concrete volume in beams may not be accurate due to the variation in beam length, but you will get the overall idea to calculate the concrete Quantity.*

## quantity in ground floor slab

Total floor area = 13.72*11 = 150.92m^2

Total Column area = 0.3*0.3*20 = 1.8m^2

Area of slab at ground floor = 150.92-1.8 = **149.12m^2**

floor thickness at ground level = 0.15m

Volume of slab at ground floor = 149.12*0.15 = **22.368m^3**

Dry volume = 22.368*1.54 = **34.447m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*34.447 = 4.921m^3

Sand Quantity = (2/7)*34.447 = 9.842m^3

Aggregate Quantity = (4/7)*34.447 = 19.684m^3

**No. of cement bags required = 4.921*(1440/50) = 141.72 ~ 142bags**

**Sand Quantity Required = 9.842*35.32 = 347.619 ~ 348cft**

**Aggregate Quantity Required = 19.684*35.32 = 695.238 ~ 696cft**

## quantity in 1st floor slab

Total floor area = 13.72*11 = 150.92m^2

Total Column area = 0.3*0.3*20 = 1.8m^2

stair case area = 3.66*2.286 = 8.367m^2

Area of slab at 1st floor = 150.92-1.8-8.367 = **140.753m^2**

slab thickness at 1st floor = 0.125m

Volume of slab at 1st floor = 140.753*0.125 = **17.59 ~ 17.6m^3**

Dry volume = 17.6*1.54 = **27.104m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*27.104 = 3.872m^3

Sand Quantity = (2/7)*27.104 = 7.744m^3

Aggregate Quantity = (4/7)*27.104 = 15.488m^3

**No. of cement bags required = 3.782*(1440/50) = 108.92 ~ 109bags**

**Sand Quantity Required = 7.744*35.32 = 273.518 ~ 274cft**

**Aggregate Quantity Required = 15.488*35.32 = 547cft**

## quantity in stair case

### Landing

volume of landing = 2.286*1*0.1 = **0.23m^3**

Total volume of landing = 0.23*2 = **0.46m^3**

### Waist slab

*flight**1*

length of waist slab = sqrt((tread*no. of tread in flight1)^2+(riser*no. of riser in flight1)^2)

no. of tread = No. of riser-1 = 9-1 = 8

length of waist slab = sqrt((0.3*8)^2+(0.2*9)^2) = 3m

volume of Waist slab in flight 1 = 3*1.143*0.1 = **0.343m^3**

*flight**2*

length of waist slab = sqrt((tread*no. of tread in flight1)^2+(riser*no. of riser in flight1)^2)

no. of tread = No. of riser-1 = 7-1 = 6

length of waist slab = sqrt((0.3*6)^2+(0.2*7)^2) = 2.28m

volume of Waist slab in flight 2 = 2.28*1.143*0.1 = **0.261m^3**

### Steps

volume of step = 0.5*tread*riser*step length = 0.5*0.3*0.2*1.143 = 0.0343m^3

Total volume of steps = volume of one step*no. of steps

= 0.0343*16 = **0.548 ~ 0.55m^3**

Total volume of staircase = volume of landing+volume of waist slab+volume of steps

**= 0.46+0.343+0.261+0.55 = 1.614m^3**

Dry volume = 1.614*1.54 = **2.485 ~ 2.5m^3**

sum of ratios = 1+2+4 = 7

Cement Quantity = (1/7)*2.5 = 0.357m^3

Sand Quantity = (2/7)*2.5 = 0.714m^3

Aggregate Quantity = (4/7)*2.5 = 1.43m^3

**No. of cement bags required = 0.357*(1440/50) = 10.28 ~ 11bags**

**Sand Quantity Required = 7.744*35.32 = 25.218 ~ 26cft**

**Aggregate Quantity Required = 15.488*35.32 = 50.50 ~ 51cft**

## Concrete Quantity Table

Sl. No. | Particulars | Cement (bags) | Sand (cft) | Aggregate (cft) |

1. | PCC | 2 | 6 | 11 |

2. | Footing | 57 | 140 | 280 |

3. | Column | 40 | 98 | 196 |

4. | Beam | 52 | 126 | 252 |

5. | Ground Floor Slab | 142 | 348 | 696 |

6. | 1st Floor Slab | 109 | 274 | 547 |

7. | Stair Case | 11 | 26 | 51 |

Total | 413 | 1018 | 2033 |