Basketball Key and Court Floor
The key area and outer arc on a basketball court mark essential shooting boundaries and restricted movement zones for players.

A4 format (portrait), black outlines on a white background · for home and classroom use
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Understanding the Basketball Key and Perimeter Arc
The painted area beneath the basket, often referred to as the key, serves as a central regulation zone for offensive and defensive positioning. Surrounding this section, the perimeter arc defines the area where successful long-distance shots earn extra points during play.
Evolution of Court Shooting Zones
The key was originally shaped like a narrow keyhole when indoor basketball was first created. It was widened in later decades to reduce physical crowding near the basket and promote faster ball movement across the floor.
Colors Found on a Regulation Basketball Court Floor
- Painted key restriction area: cobalt blue, maroon, or dark green
- Surrounding hardwood floor: golden maple or natural pine wood
- Perimeter line and three-point arc: white, orange, or yellow





