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Concrete Footing
Estimate amount of concrete for footing
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Concrete is in general calculated in cubic yards - cy. Required concrete for footing can be calculated as
v = 0.0031 l w t (1)
where
v = required concrete - cy (cu. yards)
l = length of footing (ft)
w = width of footing (ft)
t = depth of footing (in)
- 1 cubic yard = 27 cubic feet
- 1 ft = 12 in
Concrete Volume - CY per Linear Foot of Footing
| Depth of Footing (in) | Concrete Volume (cy per linear foot of footing) |
|||
| Width of footing (in) | ||||
| 12 | 15 | 18 | 24 | |
| 6 | 0.019 | 0.023 | 0.028 | 0.037 |
| 8 | 0.025 | 0.031 | 0.037 | 0.049 |
| 9 | 0.028 | 0.035 | 0.042 | 0.056 |
| 10 | 0.031 | 0.039 | 0.046 | 0.062 |
| 12 | 0.037 | 0.046 | 0.056 | 0.074 |
| 18 | 0.056 | 0.069 | 0.083 | 0.111 |
| 24 | 0.074 | 0.093 | 0.111 | 0.148 |
| 30 | 0.093 | 0.116 | 0.139 | 0.185 |
| 36 | 0.111 | 0.139 | 0.167 | 0.222 |
| 42 | 0.130 | 0.162 | 0.194 | 0.259 |
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