For construction sites, 24-foot storage container rentals provide the best capacity for construction materials. Slightly longer than ISO standard 20-foot storage containers, a 24-foot container is designed to securely store 20-foot lengths of pipe and lumber. This makes it the most commonly rented size for construction sites. Units are available in standard height or taller high cube (HC) heights in most areas. They may be equipped with one or two doors. Use built-in locking systems or padlock systems to secure contents.