Self-storage is a cost-effective way to keep your things safe while you’re not using them; whether you’re moving house, renovating, or just trying to declutter, there’s a unit to suit your storage needs. With several storage unit sizes available, it can be hard to know where to start, so we’ve put together this guide to give you a better idea of the space you’ll be getting at each size. The size of your storage unit is measured in cubic feet, equivalent to the amount of space that an object takes up when it is arranged in a rectangular shape. The unit size that you should choose depends on the number of items that you intend to store. In general, the more items that you have, the larger the unit you will need. A good rule of thumb is that you should purchase a twice as large unit as the space occupied by your belongings.