Systems and methods for a modular store system are disclosed. In particular embodiments, each modular store system includes one or more pre-fabricated, metal, interconnected, modular, units. Each of the units includes a baseplate, one or more chassis (possibly with one or more utility access holes), and subdeck. Each unit may also include other components, such as casters, level glides, a detachable veneer, pre-installed utilities, kick-plates, etc. As will be understood from discussions herein, pre-fabricated, metal (modular) units may reduce or eliminate the timeframe and associated costs of typical on-site (wooden) casework construction.