Young Blonde Girl Wearing A Necklace At The Piano

Studio pianos are around 42 to 45 inches tall. This is the shortest cabinet that can accommodate a full-sized action located above the keyboard.
Console pianos have a compact action (shorter hammers), and are a few inches shorter than studio models.
The top of a spinet model barely rises above the keyboard. The action is located below, operated by vertical wires that are attached to the backs of the keys.
Anything taller than a studio piano is called an upright.