A 10x15 storage unit is 10 feet wide by 15 feet deep, for 150 square feet of floor space. With 8-foot ceilings, that works out to 1,200 cubic feet of total volume.

About 300 medium moving boxes stacked wall to wall, five layers high, with nothing else in the unit. Leave a reach zone at the door and the realistic figure drops to 230 to 250.

Usually yes, provided the garage is not going in with it. A 10x15 takes two to three bedroom sets, a full living room, a dining set and kitchen boxes. Add a large garage and you will likely need a 10x20.

Most compact cars (under 14 feet long) fit in a 10x15, but it is tight, about 1 foot of clearance on the sides and at the front. Most customers use a 10x20 for a car to have room to open doors.

Our 10x15 units have 8-foot ceilings, giving you 1,200 cubic feet of volume.

A 10x20 gives you 33 percent more floor space (200 vs 150 square feet) and is the right step up if your inventory does not quite fit in a 10x15, or if you need to store a car with room to open the doors.

Choose a temperature-regulated unit for electronics, wood furniture, photographs, artwork, documents, leather and musical instruments. A standard unit is fine for tools, outdoor gear and seasonal items.