What is the work triangle warning based on?
It adds the three legs between the sink, fridge, and cooktop and checks that one total against the 13-21 ft band shown beside the verdict. That band is this tool's own rule of thumb -- nothing published sets it and no code requires it -- while a total past 26 ft is flagged against long-standing kitchen design guidance. No single leg is judged on its own, and no verdict appears until all three fixtures are placed.