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Our footing form and pier footing concrete volume calculations - great for DIY and contractors
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Volume calculations for concrete footing forms:
| Model | Volume of concrete | Model | Volume of concrete |
| BF20 | 1.75 cubic feet | BF24 | 2.50 cubic feet |
| BF28 | 3.25 cubic feet | BF36 | 6 cubic feet |
| BFT8 | 1.4 cubic feet |
Concrete volume calculations for sono tubes:
| Tube Diameter | 6" | 8" | 10" | 12" | 14" | 18" |
| Imperial Vol (cu. feet) | 0.196 | 0.349 | 0.545 | 0.785 | 1.067 | 1.767 |
| Imperial Vol (cu. inches) | 339.3 | 603.07 | 941.76 | 1356.48 | 1843.78 | 3053.38 |
| Imperial Vol (cu. metres) | 0.006 | 0.010 | 0.015 | 0.022 | 0.030 | 0.050 |
Note: Volume is per foot of construction tube. For example:
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10" construction tube 6 feet long:
6 ft x 0.545 cu.ft. = 3.27 cubic feet
6 ft. x 941.76 cu.in. = 5,650.56 cubic inch
6 ft. x 0.015 cu.m. = 0.09 cubic metres
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Using both Bigfoot Systems Footing Forms and construction tubes combined -
Model BF24 with a 10 inch tube 6 feet long:
6 ft. x 0.545 cu.ft. + 2.50 cu.ft. = 5.77 cubic feet of concrete
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