Doublewide mobile homes are 20 feet or more in width and 90 feet or less in length, explains Yes! Communities. The most common dimensions of a doublewide are 56 feet in length by 26 feet in width.
The square footage of a doublewide mobile home ranges from 1,067 square feet to 2,300 square feet, with most doublewides averaging slightly more than 1,450 square feet, states Yes! Communities. By comparison, the width of a singlewide mobile home is 18 feet or less and the length is 90 feet or less. The most common dimensions of a singlewide mobile home are 15 feet in width by 72 feet in length. The square footage of a singlewide mobile home ranges between 600 square feet and 1,330 square feet, with most singlewides averaging 1,080 square feet.