Small storage units range from about the size of a standard closet to a large walk-in closet. A 5×5 unit is ideal for boxes, seasonal items, and small furniture. A 5×10 offers additional room for the contents of a studio or small apartment, while a 5×15 can accommodate larger furniture, appliances, and household items.

Medium units are about the size of half of a standard garage. A 10×10 unit can typically hold the contents of a one-bedroom home, including furniture, appliances, and boxes. A 10×15 provides additional room for larger furniture, business inventory, or the contents of a two-bedroom home.

Large units are about the size of a small garage and work well for major moves, remodeling projects, and long-term storage. A 10×20 can usually hold the contents of a three- or four-bedroom home. A 10×25 provides additional space for oversized furniture, appliances, equipment, or larger household and business storage needs.

Extra-large units are about the size of a large garage and are designed for full-house moves, oversized storage needs, and commercial use. A 10×30 unit can hold the contents of a large home, including furniture, appliances, and numerous boxes. Larger spaces may also accommodate business inventory, equipment, and other substantial storage needs.