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Ergonomic Guidelines Table

Workstation Element Adjustable -Recommended Fixed Goal
23 to 33 inches
26 to 27 inches, see Footnotes
Forearms parallel to floor or tilted slightly downward
23 to 33 inches
26 to 27 inches, see Footnotes
Forearms parallel to floor or tilted slightly downward
Minimum keyboard and mousing surface
N/A
8 inches deep and 25 inches wide
N/A
Preferred keyboard and mousing surface
N/A
10 inches deep and 27 inches wide
Provide adequate room for both keyboard and mouse
Keyboard tray tilt
0 to -15 degrees
N/A
Tilting the tray down away from the user promotes better hand position
37 to 47 inches (to centerline of screen)
42 inches (to centerline)
Top of screen even with user's eyes or lower
20 to 30 inches
28 inches
Approximately arm's length
Screen Resolution
800 x 600 to 1024 x 768
1024 x 768
Items should not be too small to see easily
Writing surface height and dimensions
24 to 34 inches
28 to 29 inches
Provide at least 12 to 16 inches space
Approximately 1 inch higher than elbow height
36 to 48 inches
38 to 40 inches
Forearms parallel to floor or tilted slightly downward  
47 to 62 inches(to centerline of screen)
50 inches (to centerline)
Top of screen even with user's eyes or lower  
Chair
- Seat height range
15.5 to 20 inches
N/A
 See linked sections on chairs
Chair
- Seat pan width
17 to 19 inches, see Footnotes
N/A
N/A
Chair
- Seat pan depth
17 to 21 inches (with seat slider)
17 to 18 inches
N/A
Chair- Backrest
7 to 10 inches range of height adjustment

5 to 30 degree recline from vertical

N/A
N/A
Height: 6.5 to 11 inches above seat

Length: 6 to 10 inches Minimum rest width: 2 inches Width-adjustable brackets

N/A
N/A
ChairFootrestdimensions
3 to 6 inches high
3 inches high
Use to keep short person's feet from dangling or enable a person to extend leg(s)
Break reminder software
Installed on each workstation
N/A
Take stretch break every 15 minutes  

Additional Information

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