Basketball Court Measurements & Dimensions

From three-point shots to slam dunks, alley-oops to layups, crossover dribbles to backdoor cuts, basketball is a game that’s beloved and played by all ages worldwide. However, not all ages play by the same rules — and one of the most notable differences based on the age of the players competing is the basketball court measurements. For instance, while you’re likely already aware of the differing 3-point line dimensions between high school, college, and professional basketball, you might be surprised to learn of other key differences in full-size basketball court dimensions that change as players progress in age and skill level.

In this post, we'll take a closer look at some of these varying measurements and how you can design and build a basketball court at your home. Here’s a look:

NCAA Basketball Court Dimensions vs. NBA Courts

Both NBA and NCAA courts measure 94 feet long by 50 feet wide. The foul line also measures 15 feet from the backboard at both levels of play. However, that's where the similarities largely stop when it comes to measurements and dimensions.

Perhaps the most notable difference is the distance of the three-point line from the basket. In NCAA basketball, it measures 22.15 (22 feet, 1.75 inches) feet from the center of the basket, while the NBA three-point line is more than another full foot away from the basket, officially measuring 23.75 feet (23 feet, 9 inches). What’s more is that the NCAA three-point line is a continuous line all the way around the arc, compared to the NBA three-point line, which runs as a straight line from the baseline to nearly 17 feet out before it begins its curve.

The three-point line in high school basketball is under 20 feet from the basket, officially measuring 19.75 feet.

While the three-point line is the most obvious difference between college and professional basketball courts, there are some others worth noting as well. For instance:

  • In college basketball, the key (or lane) is only 12 feet wide compared to 16 feet on NBA courts.
  • The first box to the side of the key is 6 feet from the baseline compared to 7 feet from the baseline on NBA courts.

Half Court Dimensions

One of the nice things about the game of basketball is that it can be played anywhere there’s a hoop, from the neighborhood park to the school playground to even your own driveway. While you likely aren’t going to have enough space at your home to build a full basketball court, a half court can more than suffice.

The size of residential half courts is likely to vary based on the amount of space that property owners have to work with, but a good outdoor basketball court size to shoot for if you can manage it is 50 feet wide x 42 feet long or even 42 feet wide x 37 feet long. A half court in college or professional basketball measures 50 feet wide by 47 feet long, following either of the suggested dimensions and you’re likely to have enough space to add a foul line and three-point line. Due to space constraints, most outdoor courts will add either the high school or college three-point line rather than the NBA one when marking out the basketball court lines.

Now that we’ve covered some of the basics of court dimensions based on player age and skill level, it's time to think about arguably the most important element of any basketball court: the hoop. Make sure you invest in durable, quality baskets or goal systems, which you can find at Quality Hoops.


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