How the yards are figured
A rectangular pour is three measurements. Yardslip multiplies them, then divides by 27. This page writes that arithmetic. It does not pick a thickness or a price.
Change inches to feet
Divide the thickness in inches by 12. Five inches, the figure already filled in on the calculator, is 5 divided by 12 feet. That five is an example, not a required thickness.
Multiply for cubic feet
Cubic feet equals length in feet, times width in feet, times thickness in feet.
Divide by 27
Cubic yards equals those cubic feet divided by 27. One cubic yard is 27 cubic feet. The 27 is the size of the unit.
The same rectangle as the calculator
18 feet by 12 feet by 5 inches is filled in on the calculator so the slip is not empty. The lines below are that example. Replace the five inches with what you measured.
Arithmetic
- 18.00 ft × 12.00 ft × (5.00 in ÷ 12) = 90.00 ft³
- 90.00 ft³ ÷ 27 = 3.33 cubic yards
Area is 18.00 ft × 12.00 ft = 216.00 square feet. Rounded to the hundredth for reading.
Bags
A bag count is the cubic feet divided by the yield printed on the bag, then rounded up to a whole bag. Yardslip does not keep a bag yield. Type the cubic feet from the bag you plan to buy. The bag line stays blank until you do.
Dollars
A cost range is the area in square feet times a low rate and a high rate. Those rates are yours. Yardslip does not keep a price list. How to find a rate: a quote you already have.
A size you already measured
A 10 foot by 10 foot rectangle is not its own page. Type 10, 10, and the thickness you measured. The yards are for that rectangle only. This page does not publish a dollar figure for that size, or for any other footprint.