Profile: Container Alliance specializes in offering storage containers. Our products include cargo containers, portable storage containers, and shipping containers. Mobile storage containers provide extra space, outbuildings, short term and long term storage solutions. Storage containers are constructed with 12- or 14-gauge corrugated steel sides. Container frames are made of minimal 6-8-gauge steel. Containers have approximately 1" hard wood floors that are treated. Standard containers come equipped with a cargo door. They also have the ability to open the entire end of the container and load very large items.