A walk ramp bridges a small height difference, a curb, a step, a trailer lip, so hand trucks, pallet jacks, wheelchairs, and foot traffic cross it without a jolt. Unlike a fixed dock leveler, a walk ramp is portable: light aluminum construction means one or two people move it wherever the height change actually is, then move it again tomorrow if the job changes.
Capacity and width are matched to what actually crosses it. A ramp rated for a two-wheeled hand truck is a different product than one rated for a loaded pallet jack, and the width has to clear the load, not just the wheels. Stock sizes cover most situations and ship fast; wider or higher-capacity options are available where the standard range doesn't fit.