The Preformed Plastic Concrete Footing Forms Calculator helps you determine the amount of concrete required to fill durable, pre-made plastic forms for creating reliable concrete footings. These preformed plastic forms are designed to streamline setting footings for structures such as decks, fences, and posts, providing consistent shapes and reducing the need for custom on-site forms. Benefits
Concrete Volume Accuracy: By entering the form dimensions, capacity, and number of forms, this calculator provides an accurate estimate of the concrete volume needed in cubic feet, cubic yards, and cubic metres.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 |
one cubic foot (ft³)= 0.037037037037037 cubic yards (yd³) one cubic foot (ft³) = 0.028316846592 cubic metres (m³)
Capacity of Plastic Form: 2 cubic feet Diameter of Tube Form: 12 inches Height of Tube Form: 3 feet 6 inches (3.5 feet) Number of Forms: 4
Calculate the Volume of the Concrete Tube Form (Cylinder): The volume of a cylinder (tube form) can be calculated using the formula:
Volume = π * (Diameter / 2)² * Height
Convert Diameter to Feet: The diameter is given in inches, so we convert 12 inches to feet:
Diameter = 12 inches ÷ 12 = 1 foot
Calculate Radius:
The radius is half the diameter:
Radius = 1 foot ÷ 2 = 0.5 feet
Calculate Volume of Tube Form:
Volume = π * (0.5)² * 3.5 Volume = 3.1416 * 0.25 * 3.5 = 2.7489 cubic feet
Add Capacity of the Plastic Form: Since each plastic form already has a capacity of 2 cubic feet, add this to the volume of the tube form.
Total Volume per Form = Plastic Form Capacity + Tube Volume
Total Volume per Form = 2 + 2.7489 = 4.7489 cubic feet
Multiply the total volume per form by the number of forms:
Total Concrete Volume = Total Volume per Form * Number of Forms
Total Concrete Volume = 4.7489 * 4 = 19 cubic feet 19 * 0.037037037037037 = 0.704 cubic yards 19 * 0.028316846592 = 0.538 cubic metres
Concrete Volume: Cubic Feet: 19 cubic feet Cubic Yards: 0.7 cubic yards Cubic Meters: 0.54 cubic metres
This tool simplifies concrete volume calculations, ensuring you order the right amount of concrete for your project, avoiding waste and additional costs.