If you're asking how much a storage unit costs, the quick answer is this: most people spend $90–$200 per month. New York's storage demand is driven mostly by the high. On average, a 10 x 20 storage unit can be more costly than small-sized storage units as it offers double or triple the space in many instances. It doesn't get any more convenient than that! We offer short or long-term storage units for both. Can a 3 bedroom house fit into a 10x10 storage unit? A storage unit's price is based on several factors, including the facility's amenities (such as 24/7 access, free use of truck), the storage unit's amenities (such as climate control, electrical outlet), facility location, unit location (a ground. We scored New York City storage units on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best. Learn about our selection process. Understanding how this can affect monthly rent can help you choose the right option.