# Concrete Columns

## Estimate concrete volume required for concrete columns.

Concrete is in general calculated in *cubic yards (cy). *

The concrete required for a column can be calculated as

*v = 0.7854 a ^{2} h / 27 (1)*

*where *

*v = required concrete - cy (cu. yards)*

*a = column area (sq. ft.)*

*h = column height (ft)*

* *

*1 cubic yard = 27 cubic feet**1 ft = 12 in*

### Concrete required per 1 ft Column Height

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 |

*1 cu yd per linear foot (y*^{3}/ft) = 2.5 m^{3}/m