NIOSH Publication No. 97-117, Elements of Ergonomics Programs, Trays 6, 7, and 8
Work Surface Footrest 4" ADJ. 25 5–10 Precision work Light work Heavy work 37"–43" 34"–37" 28"–35" 64 56 48 40 32 24 16 8 0 0 8 16 24 32 40 Occasional extended reach INCHES INCHES 60" 20" 40" 13"–17" 10" 6"–12" 8"2–12" 7" Minimum 14"–21" 2–5...