A modular exhibit construction method based on standardized flat panels that connect to a compatible frame or extrusion structure to form walls, backwalls, counters, and other exhibit components. Panel systems are designed for repeated installation and dismantle, offer a range of graphic and finish options, and can be reconfigured into different layouts as booth sizes change between shows. They represent a middle ground between fully custom fabrication and basic portable displays in terms of design flexibility, cost, and reusability.