Web site links relating to CertainTeed Gypsum, Canada Inc. and the building industry have been included for the convenience of the contractor, builder, architect and do-it-yourselfer.

Saint-Gobain and other companies

• Saint-Gobain - Saint-Gobain is CertainTeed Gypsum, Canada Inc.'s parent company and is the world's largest producer of gypsum wallboard and one of the world's leading manufacturers of ceiling tiles.
• CertainTeed Gypsum, Inc. - CertainTeed Gypsum, Inc. offers a complete line of acoustic ceiling panels and wall systems.

Standards associations

• ASTM International

Building industry

• Gypsum Association
• Underwriters Laboratories Inc.
• Underwriters' Laboratories of Canada
• National Research Council Canada
• Intertek/Warnock Hersey Directory of Listed Products