This invention maximizes storage capacity for emergency first responder equipment for various spaces by providing an adjustable storage rack for a first responder, which has adjustable sides or an adjustable base. The adjustable storage rack for a first responder is suitable for use in storing gear for firemen or other first responders for quick access. The modular nature of this invention is a necessary element of maximizing the storage capacity of various spaces. This adjustable storage rack for a first responder solves these issues by providing the most amount of storage capacity in a given space and allows emergency first responders more efficient access to clothing or equipment, in order to become fully equipped and expeditiously deployed.