Most safes have a listed capacity which is based on the total number of gun barrel slots. Your particular firearms determine how many you can store. For every scoped rifle add two slots, and don’t forget to account for future accumulation. Consider what else may you want to store in the safe such as documents, photos, pistols, or ammunition which can quickly eat up all your space. In some circumstances, you may be better off buying two or more safes. This approach may actually end up saving you money in the long run. For example, you might put your less valuable firearms and items in a small inexpensive non-firelined safe in the garage and store your more prized firearms and valuables in a more sophisticated safe in your bedroom or den. You may want to have an electric lock for quick access on the safe in your bedroom/den and the standard lock on the safe in your garage. Moving one single large safe into your home can be a big and expensive undertaking, especially for hired work.