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Concrete is in general calculated in cubic yards - cy.
The concrete required in a column can be calculated as
v = 0.7854 a2 h / 27 (1)
where
v = required concrete - cy (cu. yards)
a = column area (sq. ft.)
h = column height (ft)
| Column Size (in) | Volume (cy - cubic yards - per linear foot Round Column) |
| 8 | 0.013 |
| 9 | 0.016 |
| 10 | 0.020 |
| 11 | 0.024 |
| 12 | 0.029 |
| 14 | 0.040 |
| 16 | 0.051 |
| 18 | 0.065 |
| 20 | 0.081 |
| 22 | 0.097 |
| 24 | 0.116 |
| 26 | 0.137 |
| 28 | 0.158 |
| 30 | 0.181 |
| Column Size (in x in) | Volume (cy - cubic yards - per linear foot Square Column) |
| 12 x 12 | 0.037 |
| 13 x 13 | 0.043 |
| 14 x 14 | 0.050 |
| 15 x 15 | 0.058 |
| 16 x 16 | 0.066 |
| 17 x 17 | 0.074 |
| 18 x 18 | 0.083 |
| 19 x 19 | 0.093 |
| 20 x 20 | 0.103 |
| 21 x 21 |
0.113 |
| 22 x 22 |
0.124 |
| 23 x 23 | 0.136 |
| 24 x 24 | 0.148 |
| 25 x 25 | 0.161 |
| 26 x 26 | 0.174 |
| 27 x 27 | 0.188 |
| 28 x 28 | 0.202 |
| 29 x 29 | 0.216 |
| 30 x 30 | 0.231 |
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