How to use it
- Enter length in feet.
- Enter width in feet.
- Enter thickness in inches.
- Read cubic yards, bags, and cubic feet results.
What it does – The Chandler Concrete Calculator turns your slab dimensions into three practical measures: cubic yards (the unit most suppliers use), the number of 80‑lb bags needed, and total cubic feet.
Why it matters – Knowing the exact volume prevents over‑ordering, saves money, and ensures you have enough material for a solid pour. Contractors price by the cubic yard, while DIYers often buy by the bag, so both numbers are essential.
How to read the results – Cubic yards is the raw volume divided by 27 (the number of cubic feet in a yard). Bags is the cubic‑feet total divided by 0.6, the yield of a standard 80‑lb bag. Cubic feet is the direct volume from your inputs.
Enter your measurements and get an instant, free estimate.
Pro tips
- Add a 10% waste allowance to the bag count.
- Round up the bag total to the next whole bag.
- Order a few extra bags to cover compaction and spillage.
- Double‑check that thickness in inches is converted correctly to feet.
Real-life examples
- Homeowner planning a 10 × 12 ft patio 4 in thick.
- Contractor estimating a 20 × 30 ft warehouse slab 6 in thick.
- DIYer buying concrete for a 6 × 8 ft garage floor 5 in thick.
Case study
Mike needed a 12 × 8 ft patio at 4 in thickness. Using the calculator he saw the job required 0.57 cubic yards, about 28 bags. He ordered 30 bags, avoided a costly short‑fall, and completed the pour on schedule.