The dimensions of a large suitcase are between 28 and 32 inches long and approximately 19 inches wide and 12 inches deep. Large suitcases are designed to carry at least one week's worth of clothing for travelers, and this type of luggage goes in the cargo area of airplanes. U.S. airlines restrict suitcases to 50 pounds or less, as of November 2014.
Large suitcases have an internal capacity of approximately 21 to 26 gallons, or between 2.8 to 3.5 cubic feet. Height measurements are taken from the bottom of the wheels to the top of the case when the handle is down instead of fully retracted. Luggage must be less than 62 inches long for airplane usage. Some wheeled suitcases with fully extended handles exceed the linear length maximum for air travel. The dimensions of each piece are listed on each product's individual page.
Luggage comes in four basic sizes, including carry-on luggage, small checked luggage, checked luggage and large checked luggage, in order from smallest to largest. The smallest type of case is also called cabin luggage because it can be taken into airplane cabins. The largest type of luggage is generally referred to as a suitcase because it can fit an entire suit inside without much folding.