In an earlier post, we have discussed how to calculate the material for concrete? & now we are going to see how to calculate the volume for trapezoidal footing volume along with an example.

**Contents of the Article**show

## Trapezoidal Volume Calculation Formula

The below formula is used to calculate the volume of the trapezoidal footing.

V = H/3 (A1+A2+(√A1 x A2)

A1 = Area of Lower Portion

A2 = Area of Upper Portion

H = Height of trapezoidal portion

## Example Footing Calculation

Let us see an example.

Refer below the Diagram. Now we are going to calculate the volume of the trapezoidal footing.

Volume = H/3 (A1+A2+(√A1 x A2)A1 = 2 x 1.5 = 3 Sqm

A2 = 0.5 x 0.3 = 0.15 Sqm

H = 0.15m

Now Volume = 0.15/3 x (3+0.15+(√3 x 0.15)

= 0.05 x (3.15+0.67)

= 0.19 m

^{3}

Volume (V) = 0.19 m^{3}

You may be interested to know about the different types of foundations used in construction.

## 12 Comments

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Good

Thanks very much sir.yiu given as easy solution and details now anyone can understand use of formule

It’s verY useful ThankQ so much.

Be in connect!..

Good

Very good page for learning and growing

Please share derivation of the above formula. (Trapezoidal footing)

Very good web site

Height or slant height ?

Bottom cuboid volume is not considered in ready calculator???