How to use it
- Enter length (ft).
- Enter width (ft).
- Enter thickness (in).
- Enter price per cubic yard and click Calculate.
What it does – The calculator turns the dimensions of your slab and the price you pay per cubic yard into three actionable numbers: total cubic yards of lift material, the estimated dollar cost, and how many 80‑lb bags you’ll need. Why it matters – Knowing the exact volume prevents over‑ordering (which wastes money) and under‑ordering (which delays the job). Reading the results – Cubic yards is the raw volume you’ll order from the supplier. Estimated cost multiplies that volume by your entered price, giving a quick budget. Bags converts the volume into the number of standard 80‑lb bags (each 0.6 ft³). Cubic feet shows the same volume in a more familiar unit for small projects. Use the numbers to place an accurate order and keep your lift schedule on track.
Pro tips
- Add a 10% waste allowance to your order.
- Round up the bag count to the next whole bag.
- Compare supplier prices per cubic yard before buying.
- Double‑check thickness conversion from inches to feet.
Real-life examples
- Homeowner renovating a patio needs exact lift material quantity.
- Contractor preparing a commercial slab lift and budgeting material costs.
- Landscape designer estimating concrete lift for a garden walkway.
Case study
Mike, a DIY homeowner, entered a 12 ft × 8 ft patio, 4 in thickness, and $120 per cubic yard. The calculator showed 0.89 cubic yards, $107 cost, and 2 bags. He ordered exactly 2 bags, saved $30 on excess material, and completed the lift on schedule.