wrote in message

This brings me to my question.

Depends ... to the point that social engineering with chairs is common
place, and may have always been.

http://tinyurl.com/9sfap

Modern examples include the fact that chain restaurant chairs are routinely
designed to only be comfortable for so many minutes to guarantee turnover,
and you can be sued if the chair you supply your workers causes health
probems.

There are time honored ergomonics involved that are worth taking into
account when designing a chair for your own use. Height, and width, of the
seat; backrest generally angles away from the seat 5 - 7 degrees; the front
of the seat is usually wider than the back, etc. There is a world of
information on chair design and ergonomics.

http://www.individualfurniture.com/maker/design.htm

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Last update: 12/13/05