The average size of a triple-wide mobile home is 1,900 to 2,500 square feet, about 50 percent bigger than a double-wide and two to three times bigger than a single-wide, reports CostEvaluation.com. The size of a particular model depends on the style, amenities and manufacturer.
As of 2015, Jacobsen Homes manufactures triple-wide trailer homes in three categories: two-bedroom and two-bath homes with 1,600 to 1,920 square feet, three-bedroom and two-bath homes with 1,840 to 2,080 square feet, and four-bedroom and three-bath homes with 2,240 to 2,460 square feet of living space. Titan Factory Direct sells several models of triple-wide manufactured homes. The floor plans range from 1,948 square feet for a three-bedroom, two-bath home to 3,040 square feet for a four-bedroom, two-bath home.