Hello everyone, welcome back to another article where we are discussing **how to calculate quantity of steel in slab, column, beam, and footing**. As we all know that nowadays houses or buildings are being constructed with concrete. In the construction of a house or building footings, columns, beams, and slabs construct with the help of steel. Today we will know what quantity of steel can use in the construction of slabs, columns, beams, and footing.

**What is slab?**

A Slab is a flat stone piece that is used to make a floor or roof. by its use, the floor or roof becomes perfectly level. Slabs are made by mixing things like cement, water, sand, etc. The strength, rigidity, and durability of slabs set them apart from other building materials.

**What is column?**

When the construction of a building starts, it starts from the floor and goes up to some height. The column serves to connect the work done at that height with the floor. In other words, the column connects the weight of the construction work at the height of the construction work on the floor.

**What is Beam?**

The work of a beam is to connect the upper and lower surfaces of two columns, which helps the column to bear the weight of the building.

**What is footing?**

The first step in the construction of a building is the footing. First of all, the foundation of the land is laid by excavating the land with the help of cement, steel rods, sand, etc. The support on which the whole building stands is called footing. For example, our feet help us to stand. Similarly, footing helps the building.

## How to calculate the quantity of steel in Slab, Column, Beam, and footing

Now, we are going to discuss what quantity of steel needed in making Slab, Column, Beam, and Footing.

### Calculation of steel for RCC Slab

To know the amount of steel we need to make the RCC slab. We must first know the length, width, and thickness of the slab to make (in meters). If we want to find out the volume of the RCC slab in a cubic meters. We have to multiply the length, width, and thickness together. If we want to get the amount of steel in kg to make an RCC slab. we need to multiply the **density of steel which is 7850 kg/m3** by 1% of the net volume of the slab.

**Example**:- here we will show how to calculate the cost for the Rcc slab.

If the length, width, and depth of the slab are 6m × 5m × 0.10 m. **how will we calculate the amount of steel required to make the RCC slab?**

Normally, the quantity of steel required to make an RCC slab should be only 1% of the total quantity of concrete.

Here we have the length of the slab is given 6m, the width 5m, and the depth 0.10m. So the quantity of steel required for the RCC slab would be 6m × 5m × 0.10m = 3m^{3}.

Now we need to multiply the result of length × width × depth with the 1 percent of total concrete and the density of steel which is 7850 kg/m3.

So, 3 × 0.01 ×7850 = 236 kg here we got the amount of steel needed to make an RCC slab in kg.

### Calculation of steel for Column

To know the amount of steel we need to make RCC Column. We must first know the length, width, and thickness of the column to make (in meters). If we want to find out the volume of columns in cubic meters. We have to multiply the length, width, and thickness together. If we want to get the amount of steel in kg to make the RCC column. We need to multiply the **density of steel which is 7850 kg/m3** by 2.5% of the net volume of the RCC column.

**How to calculate the quantity of steel for 12 foot RCC column**. Whose length, width, and depth are 0.30m, 0.30m, and 4.5m.

Normally, the quantity of steel required to make an RCC column should be only 2.5% of the total quantity of concrete.

As we have length = 0.30m, width= 0.30m, and depth= 4.5m, and the total number of columns taken is 12.

So, the required quantity of steel would be 0.30m×0.30m×4.5m×12= 4.86m3.

Now we need to multiply the result of length×width×depth with the 2.5 percent of total concrete and the density of steel which is 7850 kg/m3.

Therefore, 4.86 × 0.025 (2.5%) × 7850 =953 kg here we got the amount of steel needed to make the RCC column in kg.

### Calculation of steel for Beam

To know the amount of steel we need to make an RCC Beam. We must first know the length, width, and thickness of the Beam to make (in meters). If we want to find out the volume of Beams in a cubic meter. We have to multiply the length, width, and thickness together. If we want to get the amount of steel in kg to make RCC Beam. We need to multiply the density of steel which is 7850 kg/m3 by 2% of the net volume of the RCC Beam.

**How to calculate the needed quantity of steel**. If the length, width, and thickness are 100m, 0.230m, and 0.230m given respectively.

Normally, the quantity of steel required to make RCC Beam should be only 2% of the total quantity of concrete.

As we have length= 100m, width= 0.230m, and thickness= 0.230m.

So, the required quantity of steel would be (in meters).100 × 0.230 × 0.230 =5.29m3.

Now we need to multiply the result of length × width × depth. With the 2% of total concrete and the density of steel which is 7850 kg/m3.

Therefore, 5.29 × 0.02 (2%) × 7850 = 830 kg, here we got the quantity of steel needed to make Rcc Beam in kg.

### Calculation of steel for footing

To know the amount of steel we need to make footing. We must first know the length, width, and thickness of the footing to make (in meters). If we want to find out the quantity of footing in cubic meters, then we have to multiply the length, width, and thickness together. If we want to get the amount of steel in kg to make footing. We need to multiply the density of steel which is 7850 kg/m^{3} by 0.5 percent of the net volume of the footing.

**How to calculate the quantity of steel** whose footing’s length, width and thickness is 3m, 3m, and 0.3 given respectively.

Normally, the quantity of steel required to make footing should be only 0.5% of the total quantity of concrete.

As we have length = 3m, width =3m, and thickness = 0.3m.

So, the required quantity of steel would be (in meters) 3 × 3 × 0.3 = 2.7m^{3}.

Now we need to multiply the result of length × width × depth. With the 0.5% of total concrete and the density of steel which is 7850 kg/m3.

Therefore, 2.7 × 0.005 (0.5%) × 7850= 106 kg. Here we got the quantity of steel needed to make footing in kg.

### Required quantity of steel for the slab, column, beam, and footing per 1m^{3} of concrete

**FOR SLAB** what should be the required quantity of steel for slab per 1m3 of concrete?

As we have the volume of concrete 1m3 of the slab. To calculate the steel quantity of slab as 1% of the volume of concrete. We need to multiply the volume of concrete in percentage(1%) with steel density(7850 kg/m3) and 1m3 of concrete 0.01× 7850 ×1=78.50 kg. Here it concluded that for every 1m3 of the slab, the steel quantity would be 78.50 kg.

**FOR COLUMN**

what should be the required quantity of steel for a column per 1m3 of concrete?

As we have the volume of concrete 1m3 of the column. To calculate the steel quantity of the column as 2.5% of the volume of concrete. We need to multiply the volume of concrete in percentage (2.5%) with steel density(7850 kg/m3) and 1m3 of concrete. As- 0.025 × 7850 × 1= 196 kg. Here it concluded that for every 1m3 of the column, the steel quantity would be 196 kg.

**FOR BEAM**:- what should be the required quantity of steel for a beam per 1m3 of concrete?

As we have the volume of concrete 1m3 of the beam. To calculate the steel quantity of the beam as 2% of the volume of concrete. We need to multiply the volume of concrete in percentage(2%) with steel density(7850 kg/m3) and 1m3 of concrete. As 0.02 × 7850 × 1= 157 kg. Here it concluded that for every 1m3 of the beam, the steel quantity would be 157 kg.

**FOR FOOTING**:- what should be the required quantity of steel for footing per 1m3 of concrete?

As we have a volume of concrete 1m3 of footing. To calculate the steel quantity of footing as 0.5% of the volume of concrete. We need to multiply the volume of concrete in percentage(0.5%) with steel density (7850 kg/m3) and 1m3 of concrete. As- 0.005 × 7850 × 1= 39.25 kg. Here it concluded that for every 1m3 of footing the steel quantity would be 39.25 kg.

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#### Conclusion

In this article, we discussed what is the column, beam, slab, and footing. And how we can find out the required quantity of steel in m3 and kg. If we have to make columns, beams, footing, and slab.