METRIC DESIGN GUIDE
Georgia Pacific, GA (Bronwyn Dawkins, 404-521-4000).
James Hardie Gypsum, NV (Todd Thomas, 310-787-6950/Alex Beaman, 800995-0950
Temple Inland (Jim Rush, 800-231-6060).
USG Interiors International, Chicago, IL (William Nelson, 312-606-5383/David
All U.S. manufacturers can provide data and drawings in metric. Some product lines are
produced in round metric dimensions
All of the major manufacturers of HVAC controls currently offer products that will operate in
Celsius. Some of those firms are:
Contact your local representative for ordering information.
When a round metric 600 by 600 or 600 by 1 200 ceiling grid is installed, round metric lay-in
type fixture sizes must match. Many fixture manufacturers currently produce or can produce
both modular metric sizes and still utilize currently used standard bulb sizes. When other than a
lay-in type of lighting fixture is used in a project, then size is not critical and can be specified
as an approximate size as in other equipment. The following companies produce both 600 by
600 and 600 by 1 200 fixtures unless otherwise noted.
American Fluorescent, IL, supplies fixtures in orders of at least 500 fixtures (Gary