When clutter starts building up in your house, it means it's time to consider a storage system. Many homeowners think of self-storage units when they want to store classic items or valuables. Whatever your reason for hiring a self-storage unit, it's essential to familiarize yourself with the different types of storage units. Here's a breakdown of three main types of self-storage units. 1. Climate-Controlled Self-Storage This kind of storage is mainly offered in enclosed buildings.