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The **Masonry Calculator **contains equations and data used in working* Rectangular Slab*

- Rebar and Concrete in a Slab - For a rectangular slab, this computes the:
- Length of Rebar
- Weight of Rebar
- Volume of Concrete (this take into account concrete displace by rebar)
- Weight of Slab (Rebar and Concrete)

- Cubic Yards in a Circular Slab - This computes:
- Cubic Yards of Concrete
- The equivalent volume in 80lb, 60lb and 40lb bags of concrete
- Surface Area of the Circular Slab
- Perimeter of the Circular Slab

- Cubic Yards in a Polygon Slab - This computes
- Cubic Yards of Concrete
- The equivalent volume in 80lb, 60lb and 40lb bags of concrete
- Surface Area of the Polygon Slab

- Weight of Concrete by Cubic Yards - This computes the weight of a volume of concrete
- Weight of Rebar - This computes the weight of a length of rebar based on the rebar size
- Price of Delivered Concrete - This computes the price of delivered concrete based on the volume, price per cubic yard, pumping cost, delivery distance, and mileage.

- Bricks or Blocks in a Wall - This computes the number of standard U.S. brick or block needed for a wall using feet and inches.
- European Brick or Block in a Wall - This computes the number of standard European bricks or block in a wall using meters and centimeters.
- Custom Stone in a Wall - This computes the number of blocks or stone in a wall
- Concrete, Rebar and Forms for Wall - This computes the volume of concrete, amount of rebar and the surface area of forms for a concrete wall.

- Blocks in a Foundation - This computes the number of blocks needed for a foundation.
- Concrete in a Poured Foundation - This compute the volume of concrete, the square feet of the forms and the number of 4'x8's needed for the forms.
- Concrete in a Footer - This computes the volume of concrete for a footer based on the length, width and depth of the footer.
- Concrete in a Footer (Cross Section) - This computes the volume of concrete for a footer based on the length and cross-section area of a footer
- Concrete in a Column or Pier - This computes the volume of concrete in a column based on the radius and height of the column
- Concrete for a Post Hole - This computes the volume of concrete for a post hole based on the size of the hole and dimensions of the post.

Sea sand is usually discouraged when mixing concrete. The salt content of the sand weakens the concrete and shortens the life of the concrete structure.

Always consult local building codes for the best answer. However, a guideline for the depth of concrete is as follows:

4” - Home basement floors, farm building floors

4”-5” - Home garage and porches

5”-6” - Sidewalks, barn and granary floors, small sheds

6”-8” - Driveways

See Also

- Rebar Calculator - Comprehensive equations and data dedicated to Rebar
- House Builder - Equations and data for home and shed masonry, framing, drywall and roofing.
- Painters Calculator - Equations and pricing data for interior painting
- Flooring Calculator - Equations and pricing data for interior flooring options