Basketball court dimensions and line marking
A basketball court is 28 m (91′ 10⅜″) by 15 m (49′ 2½″); with its run-off it needs 32 m (104′ 11⅞″) by 19 m (62′ 4″).
- Playing area28 m × 15 m
- With run-off32 m × 19 m
- Surface608 m²
- Played onIndoors on wooden sports floors; outdoors on acrylic courts.
Basketball court drawing, every line measured
Full FIBA court. The no-charge semicircle (radius 1.25 m) and backboard sit inside each restricted area.
- Playing area
- 28 m × 15 m
- With run-off
- 32 m × 19 m (2 m on every side)
- Surface to build
- 608 m², court and run-off together
- Square check
- Both diagonals of the court must read 31.765 m. If they differ, the court is out of square.
- Played on
- Indoors on wooden sports floors; outdoors on acrylic courts.
- Lines
- 5 cm. The boundary lines are not part of the court: 28 × 15 m is measured to their inside edge.
- Ring and backboard
- Ring 3.05 m above the floor. Ring centre 1.575 m from the end line; backboard face 1.20 m from it.
- Three-point line
- Arc of 6.75 m radius, with straight lines 0.90 m in from each sideline.
- Free-throw line
- Far edge 5.80 m from the end line, 3.60 m long, extended to the restricted area.
- Throw-in lines
- 0.15 m long, outside the sideline opposite the scorer’s table, 8.325 m from each end line.
- Backboard
- 1.80 m × 1.05 m. Its bottom edge sits 2.90 m above the floor: the ring top is level with the base of the inner rectangle, 0.15 m above the bottom edge.
- Ring
- 0.45 m to 0.459 m inside; nearest edge 0.151 m from the backboard.
- Support
- At least 2 m behind the outer edge of the end line, padding included, for FIBA level 1 and 2 games. Indoor courts need 7 m clear height.
Fence around the court
- Fence run
- 102 m
- Mesh area
- 311 m²
There is no rulebook height for this court, so pick what your site needs: higher where balls fly towards a road, windows or neighbours. The run is measured round the edge of the run-off; gates are left out.
How to mark a basketball court
- Fix one end line. Stretch a string line 15 m long between two pins.
- Square the corner with 3-4-5. 3 m along the end line, 4 m out along the side; when the gap reads exactly 5 m, the corner is square. Run the side line out to 28 m.
- Check both diagonals. Each must read 31.765 m. If they differ, move the corners before marking any line.
- Mark the inner lines.
- Three-point line: arc of 6.75 m radius from the point under the ring.
- Free-throw line: far edge 5.80 m from the end line.
- Restricted area: 4.90 m wide, from the end line to the free-throw line.
- No-charge semicircle: 1.25 m radius to its inside edge.
- Centre line: halfway, 14 m from each end line.
- Centre circle: 1.80 m radius to its outer edge.
- Mark to the right edge. Measured to the inside of the boundary line. The line sits outside the court, so a ball on the line is out. Mask both sides of every line with tape before painting.
Marking it yourself? Send a photo of your set-out on WhatsApp and we will help you check it before the paint goes on.
Questions people ask
What is the size of a basketball court in feet and metres?
A basketball court is 28 m (91′ 10⅜″) long and 15 m (49′ 2½″) wide.
How much space is needed for a basketball court?
With the run-off around it, the surface is 32 m (104′ 11⅞″) by 19 m (62′ 4″): about 608 m² (6,544 sq ft).
What are the ring and backboard measurements for basketball?
Ring 3.05 m above the floor. Ring centre 1.575 m from the end line; backboard face 1.20 m from it.
How do I check that a basketball court is marked square?
Measure both diagonals from corner to corner. On a basketball court each should read 31.765 m (104′ 2⅝″); if the two differ, the corners need moving.
Which edge of the line is the basketball court measured to?
Measured to the inside of the boundary line. The line sits outside the court, so a ball on the line is out.
Start here
Want this court built?
Send the location and a few photos of the site. We will reply with the right Acrlay court for it and a written quote.