• Hands, wrists, and forearms are straight, in-line and roughly parallel to the floor.
   
• Head is level, or bent slightly forward, forward facing, and balanced. Generally it is in-line with the torso.
   
• Shoulders are relaxed and upper arms hang normally at the side of the body.
   
• Elbows stay in close to the body and are bent between 90 and 120 degrees.
   
• Feet are fully supported by floor or footrest.
   
• Back is fully supported with appropriate lumbar support when sitting vertical.
   
• Thighs and hips are supported by a well-padded seat and generally parallel to the floor.
   
• Knees are about the same height as the hips with the feet slightly forward.

Quick Chair Tips

• The backrest should conform to the natural curvature of your spine, and provide adequate lumbar support.
• The seat should be comfortable and allow your feet to rest flat on the floor or footrest.
• Armrests, if provided, should be soft, allow your shoulders to relax and your elbows to stay close to your body.
• The chair should have a five-leg base with casters to allow easy movement along the floor.

More information on correct seating postures can be found on the OSHA website.