The 10x10 should be perfect for you. This unit can store two to three room's worth of furniture, or maybe a small one bedroom apartment. It can store a LOT of boxes. Or, it's also good for tools, an ATV, lawn mowers, bikes, or a motorcycle. If you store garage equipment, please line the floor in case of fluid leaks (like oil)! It is perfect for college students, and holiday/seasonal storage! If you have electronics, candles, leather or other sensitive items, consider temperature control!