Basketball Court Concrete Calculator

1. Pick the court size: full, high school, junior high, half court, or Custom.
2. For a Custom court, enter the length and width in feet; standard sizes are set for you.
3. Set the thickness in inches and a 5 to 10 percent waste allowance.
4. Read the result: cubic yards to order, the ready-mix truck loads, the weight and the area.

Here is what each result line means:

A basketball court concrete calculator estimates the concrete for a court slab from the court size and thickness. A court is a large flat pour, so the main question is how many cubic yards and how many truck loads it takes.

Standard courts are set sizes: an NBA or college court is 94 by 50 feet, a high school court 84 by 50, a junior high court about 74 by 42, and an NBA half court 47 by 50. The tool uses those dimensions, or your own for a home or custom pad, and works out the concrete. For the mix itself, use the concrete mix calculator or the cement calculator, and for mix water the water cement ratio calculator.

A court is a rectangle, so the volume is the area times the thickness, divided by 27 for cubic yards. The court size sets the area, and the thickness and waste do the rest.

1. Take the court area, length times width, from the chosen size or your custom dimensions.
2. Multiply by the thickness in feet for the volume in cubic feet, then add the waste allowance.
3. Divide by 27 for cubic yards, and by about 10 for the ready-mix truck loads.

Suppose you are pouring a full court, 94 by 50 feet, at 4 inches, with 10 percent waste.

Calculation: the area is 94 x 50 = 4,700 sq ft. Volume = 4,700 x 0.333 = 1,566.7 cu ft, or 58 cu yd. Adding 10 percent waste gives 1,723 cu ft, which is 63.83 cu yd, about 7 ready-mix truck loads and roughly 129 short tons.

The lesson: a full court is a major pour of over 60 cubic yards. It is strictly a ready-mix job, and placing it in one go takes planning and a full finishing crew.

Court Size

The size sets the area, and the area drives everything. A full court is more than double a half court, and a junior high court is smaller again.

Thickness

Thickness multiplies the whole area, so an extra inch across a court is a lot of concrete. Four inches suits most outdoor play; heavier use or vehicles need more.

Sub-base and Drainage

A court needs a compacted, well-drained sub-base and a slight slope to shed water. A soft or uneven base soaks up concrete, which the waste allowance covers.

Control Joints and Reinforcement

A slab this large must be jointed and usually reinforced to control cracking. These do not change the volume but are essential to the build.

Most home courts are smaller than a regulation court, scaled to the space and budget. The tool offers the standard sizes and a custom option so you can compare.

A backyard court is often a custom pad, perhaps 30 by 50 feet or less. Choose Custom and enter your own size to compare the concrete each takes.

Planning a Court Pour

Size the concrete in cubic yards and truck loads before you order, so the big continuous pour is scheduled and crewed.

Comparing Court Sizes

Weigh a full court against a half or a custom pad to see what fits the space and the budget.

Budgeting the Slab

Use the cubic yards with a price per yard to get a material figure before adding the base, finishing and the hoop.

1. Forgetting the Sub-base

A court slab sits on a compacted, drained base. The concrete estimate does not include that stone layer; size it separately.

2. Under-crewing the Pour

Over 60 cubic yards placed in one go needs a full finishing crew. A court is not a weekend solo pour.

3. Skipping Control Joints

A slab this size cracks without planned joints. They do not change the volume but must be in the plan.

4. Using the Wrong Court Size

A high school court is shorter than a full court, and a junior high court is smaller again. Pick the right size or enter custom dimensions.

5. Forgetting a Waste Allowance

An uneven base over a large area soaks up concrete. Keep 5 to 10 percent so the pour does not run short.

The arithmetic is exact and the standard court sizes are the published dimensions; the result depends on the thickness and the waste you enter.

A full 94 by 50 foot court at 4 inches needs about 63.8 cubic yards with waste, roughly 7 ready-mix truck loads. A half court is about half that. Pick your court size above for the exact figure.

An NBA or college court is 94 by 50 feet, a high school court 84 by 50, a junior high court about 74 by 42, and an NBA half court 47 by 50. The tool uses these, or your own size for a home court.

Commonly 4 inches for an outdoor sport slab on a compacted base, with reinforcement and control joints. Heavier use may need more. The required thickness and reinforcement come from your plans; this tool estimates volume.

An NBA half court, 47 by 50 feet at 4 inches, needs about 32 cubic yards with waste, roughly 4 truck loads. A smaller backyard half court takes less; enter a custom size to compare.

No, it is far too much. A full court is over 60 cubic yards, which would be thousands of bags. A court is strictly a ready-mix pour; the bag figure is only there for scale.

About 7 for a full court at 4 inches, at roughly 10 cubic yards a truck, and about 4 for a half court. The tool shows the truck loads so you can schedule a continuous pour.

A full 94 by 50 foot, 4 inch slab is roughly 129 short tons of concrete. The sub-base has to be compacted and well drained to carry it and keep the surface flat.

No. The calculation runs entirely in your browser and nothing you enter is stored or sent anywhere.

• ProFormance Hoops, basketball court dimensions (NBA and college 94 x 50 ft, high school 84 x 50; junior high ~74 x 42 is a common, non-standard size).
• QUIKRETE Concrete Mix 1101 data sheet (QUIKRETE; bag yields 0.60, 0.45 and 0.30 cu ft).
• National Ready Mixed Concrete Association (NRMCA; ready-mixed concrete for a large continuous pour).