When you're comparing office spaces in search of the ideal place to lease, you want to make sure that you have a clear picture of exactly what you're getting for the monthly cost of rent. Unfortunately, the terms used to describe square footage can make it hard to do so. Many prospective tenants find it difficult to discern usable square footage from rentable square footage and end up confused about just what they're getting. But not to worry, we're about to break down what each term means, so you'll be ready to start your search.

Imagine going to the store and buying seven cans of tuna. Now imagine that you got home, opened your bag, and found six cans. You'd probably think that the cashier or bagger made a mistake, and you'd either go back to the store for your can of tuna, or you'd chalk it up to experience.