### How To Calculate Volume Of Trapezoidal Footing

Individual Footings Are Mostly Used In Residential Buildings And Small Building. Usually Individual Footing Have The Shape Of Rectangular, Square And Trapezoidal.

Rectangular And Square Shape Footings Are Calculated The Volume By Simple Steps

Volume Of Rectangular Footing = Area ( A x B ) X Height
Volume Of Square Footing = Area ( A2)  X  Height

Also Trapezoidal Footing Volume Calculation is The Easy Process. I Will Explain Broadly About Volume Calculation Of Trapezoidal Footing Below.

V = H / 3 ( A1 + A2 + ( A1 X  A2 )

H = Height Of Trapezoidal Portion
A1 = Area Of Bottom Of Trapezoidal Portion
A2 = Area Of Top Trapezoidal Portion

Example Calculation For Trapezoidal Footing Volume Calculation.

V = H / 3 ( A1 + A2 + ( A1 X  A2 )
Where H= 0.3 M
A1= 1.5 X 1.5 = 2.25 M2
A2= 0.9 X 0.9 = 0.81 M2
V = 0.3/ 3 ( 2.25+ 0.81+ ( 2.25 X  0.81 )
V = 0.1 ( 3.06+ 1.35)
V = 0.441 M3

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