The sub frame accessory is primarily built for top access floor scales that need the extra side protection from forklifts and rough customers in general. Built to be used on somewhat even, hard packed surfaces such as concrete or asphalt. The portable unit has built in fork channels so the platform can be moved to different locations and a bolt on instrument stand for easy visibility. 3/4″-16 Dura feet are located on the bottom for easy leveling. Custom size available for quote. Pictured with floor scale installed, scale not included in pricing.