Standard width for electric ovens is 30 inches and 36 inches for gas ovens. Standard height is 36 inches to make them flush with standard counter heights, and 25 inches is the standard stove depth.
Oven dimensions are standardized to enable calculating the space needed for appliances prior to building the home. However, there are variations. In small kitchens, where space is precious, stoves might only be 20 inches wide. Styles vary, and double and built-in models can range in width from 20 to 36 inches. Commercial-grade stoves for the home can range in width from 36- to 48- to 60-inch widths, and some are taller than the standard 36 inches.