# Plastic Concrete Footing Form

Calculate the amount of concrete needed using plastic forms

There are a few different brands available, and they will be easier to use for the average person that needs to place forms for pillars or posts that have to support a deck or an overhang.

Brand | Model | Concrete Volume |

Bigfoot | BF20 | 1.75 ft³ |

Bigfoot | BFT10 | 2.18 ft³ |

Bigfoot | BF24 | 2.50 ft³ |

Bigfoot | BF28 | 3.25 ft³ |

Bigfoot | BF36 | 6.0 ft³ |

SquareFoot | SF-22 | 2.0 ft³ |

SquareFoot | SF-28 | 4.5 ft³ |

SquareFoot | SF-32 | 7.0 ft³ |

Redi Base | 8" x 24" | 2.0 ft³ |

### Example of how to use this calculator:

4 big foot BF24 concrete forms with 10" diameter concrete tubes
BF24 = 2.5 ft³ - enter in field one of calculator 2.5
tube diameter = 10" - enter in field two of calculator 10
form 1 concrete tube height = 1' - 6"
form 2 concrete tube height = 2' - 1"
form 3 concrete tube height = 1' - 7"
form 4 concrete tube height = 2' - 4"
for a total height of 7' - 6" enter in field three of calculator 7 feet 6 inches
four forms used - enter in field four of calculator a 4
Result: you will need 14.09 ft³ of concrete

### Plastic Concrete Footing Forms

#### Calculation

- enter the volume of your concrete form in cubic feet
- diameter of the tube in inches
- height of tube(s) in feet and inches (for multiple forms add all individual height sections together)
- number of forms used

#### Results

- amount of concrete needed in cubic feet
- amount of concrete needed in cubic yards
- amount of concrete needed in cubic metres

### When Ordering Concrete

This concrete calculator will help you in estimating the amount of concrete needed for your project. The amount given as needed, does not include any waste. It is recommended, depending on the job you are doing, to add anywhere from an extra 4% to 10% to your concrete order to make sure you have enough concrete to finish the job. Ask when ordering the concrete. They will be able to give you a good idea of what is needed.
### Concrete Volume Calculators

##### Shapes using Imperial & Metric Measurements