A panel support assembly is presented herein. The panel support assembly includes a support base, a fixed support structure and a swing arm assembly. The fixed support structure extends from the support base and defines at least one vertical panel engaging surface. The swing arm assembly is pivotally attached to the base and is disposable between a normally biased, at least partially raised position and a lowered, clamped position. The swing arm assembly includes a base, a swing arm panel and a pivoting pressure plate. A biasing device is attached to the base of the swing arm assembly and is configured to normally bias the swing arm assembly into the at least partially raised position until an opposing weight is applied to the base of the swing arm assembly that will oppose the biasing force and automatically position the swing arm assembly into the lowered clamped position.