Your Reach Envelope | ergotmc.gtri.gatech.edu | 2003
Human Factors Engineering & Design, Sanders & McCormick, 1987
Metrics
Optimum Work Area
Area within Reach Envelope best suited for task performance. Area starts 1-3 inches from the edge of desk and measures 10 x 10 inches.
Normal Reach Zone
Area that can be reached with a sweep of the forearm with elbow at waist and upper arm in alignment with torso. Does not exceed 15 inches.
Extended Reach Zone
Area that can be reached by extending the arm from the shoulder Does not exceed 20 inches.
Primary Work Zone
Area between shoulder and hips.
May very slightly based on individual size.
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