Reserve a storage unit in Des Moines IA at StorageMart. Visit 3221 Martin Luther King Jr Pkwy or call 515.277.8964. Get the First month free on select units StorageMart offers large drive-up accessible storage units and computerized gate access allowing for easy entry and convenient access from 6am to 10pm. We offer a wide range in sizes so whether you are storing just a few boxes or an entire residence, we have you covered. Personal, residential or commercial customers all are welcome here. Do you have a vehicle, trailer, boat or recreational vehicle that you do not have room for at home? We have the solution for you with spaces up to 43 feet long and up to 12 feet wide.