This process is intended for small non-structural repair or replacement of equipment with commercial projects where the building owner can obtain a permit to repair or replace the same or existing features of a building without architectural plans.
1 Mark the area that will need concrete and divide it into smaller areas. 2  Calculate its volume of the area after determining the shape of the area (see chart below) by multiplying in the height.  Convert the volume from feet to cubic yards to get the number of cubic yards of concrete youâll need.
1 To measure the driveway in cubic feet, multiply length by width by depth. 2  For cubic yards, divide the total cubic feet by 27. 3  One cubic yard of gravel is equal to 1.13 ton. 4  Multiply total cubic yards by 1.13 to convert to tons.