Useful Links

Useful Information

The Door and Hardware Institute is a professional organization that is a good source for education and information on doors, hardware, security and specialty products for the architectural openings industry.

The Steel Door Institute is a voluntary, unincorporated, non-profit business association formed to promote the use of steel doors and frames in the construction industry. Their site includes technical documents, a glossary of terms, an Installation & troubleshooting guide for Steel Doors, ANSI Standards, plus important Fire Door Requirements. It's a great help for architects and specifiers involved in the selection, care and use of steel doors and frames.

Underwriters Laboratories, Inc., (UL) is an independent product safety testing and certification organization. Its website is full of valuable resources and business tools. Includes Guide Information for Fire Doors & Guide Info on Edge Sealing Materials for Fire Doors.

Featured Manufacturers

Most of the manufacturers represented by GARDNER-TOBIN, Inc. have online resources for additional information - including templates and installation instructions - that may prove useful to you. Look out for the helpful links throughout our site.




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Gardner-Tobin, Inc. Builders Hardware 227 East Helena Street PO Box 121 Dayton, OH 45404 Phone: 937.222.1522 Fax: 937.222.9568