Desk Chair

Desk Chair
What are the dementions of a standard desk chair?

I am building a desk and I was curious as to a good distance between the legs for a chair.

The dimensions are:
Seat width
16″-20″
Seat depth
15″-18″
Seat height from floor
16″-18″
Slope of seat front to rear
5° to 8° (3/4″ to 1″ drop)
Armrest height above seat
7″-9″
Armrest length (full armrest)
8″ minimum
Armrest width
2″ average
Set back of armrest from front
2″-3″
Seat back height
12″-16″ above seat
Seat back recline angle
0°-5° (formal); 10°-15° (casual)

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