1. Standing helps support large weights
2. Sit if working for long duration
3. Work surface height:
- Precise Work - high work surface height
- Light Work - Medium work surface height
- Heavy Work - Low work surface height
- With relaxed shoulders, your desk should be at or below your elbow (blood should flow down)
4. Work surface depth
- Normal and maximum work areas
- Reach envelope
5. Work surface inclination
- Most should be horizontal but for reading, a slightly slanted surface towards you is better