The standard width of an upright piano is 5 feet, and the standard depth is between 2 and 2.5 feet. The height varies based on the type of the piano, but vertical pianos above 45 inches fall into the upright category.
The terms "vertical" and "upright" are used interchangeably to refer to all vertical pianos, but "upright" is also a smaller type within that category. The other three types are spinet, console and studio. Spinet pianos are less than 36 inches tall. Console pianos are 40 to 44 inches high. Studio pianos are 45 to 50 inches high. The height of the piano makes a major difference in the quality of sound the piano produces.