A1 PORTABLES offers storage container rental for ground level, steel storage containers for the and protection of your company’s inventory, tools, supplies, records, or whatever additional storage space you may require. Our storage containers (also referred to as ISO containers, conex boxes, and shipping containers) are made of corten steel with heavy plywood flooring. Our rental fleet consists of 8’ x 20’ and 8’ x 40’ containers. Normal ceiling height is 7’ 10”. We can, if available, supply Hi-Cube boxes with a ceiling height of 8’ 10” as well. A limited number of containers have double doors at both ends.