The frame is precision-fabricated from heavy-gauge, cold-rolled tubular steel or aluminum alloy, featuring fully welded joinery designed to withstand rigorous daily setup, teardown, and high-load usage without frame fatigue or joint failure. The exterior is coated in an advanced electrostatic powder-coated or metallic baked-enamel finish, providing high resistance to scratching, chipping, and abrasion during frequent stacking and transport. Built-in protective stacking bumpers along the frame legs prevent metal-to-metal contact and surface marring when units are stacked vertically up to 10-high for compact storage and rapid venue clearing.