If you are replacing a stove, make sure you measure the opening carefully. Free standing ranges generally measure 30 inches wide, but can vary from 20 inches (think apartments or rec rooms) to 40 inches and plop into a cavity in the cabinetry or at the end of a counter. It is important to measure as a quarter of an inch can spell disaster.
Measure twice, .....
Frigidaire Gallery Series GLGFZ376FC 30" Freestanding Sealed Gas Range
Frigidaire FEF336EC 30" Freestanding Electric Range
Avanti Elite Series DG241BS 24" Freestanding Gas Range
Avanti ER20AW1 20" Freestanding Electric Range
Matag MER6741BAW 30" Electric Double Oven Free Standing Range