Store Fixture Shelf Installation | Custom Retail Displays | Interior Fabrication | Custom Millwork | Glass Showcase Customization Store Shelf installation, Custom Retail Displays, Custom Millwork, Concept Development, Design engineering, Store Fixture Fabrication, Vendor Shop manufacturing RPM is a globally engaged, custom fixture, furniture and millwork provider, servicing retail, hospitality and financial customers. As a full service organization, we work with our clients to reinforce their brand through design, sourcing, fabrication, project management, logistics and installation.