About Us

Republic Doors and Frames Office

Republic Doors and Frames has a long history as one of the nation's leading manufacturers of commercial steel doors and frames. Republic's manufacturing and offices occupy 240,000 square feet on 33 acres in McKenzie, Tennessee. Strategically located halfway between Memphis and Nashville approximately 25 miles north of Interstate 40 (I-40). Republic's doors and frames are marketed in all 50 states and in several foreign countries through a network of stocking distributors and company owned service centers.

Republic Doors and Frames Office
Company History
  • Truscon Steel established in 1920 in Youngstown, Ohio.
  • Republic Steel was a major customer of Truscon Steel until 1935.
  • In 1935, Republic Steel purchased Truscon Steel and continued to sell products under Truscon name until the early 1960's.
  • Republic Builders Products Corporation was born as a wholly owned subsidiary of Republic Steel Corporation.
  • Republic Builders Products moved from Youngstown, Ohio to McKenzie, Tennessee in 1976.
  • Republic Steel was acquired by LTV in 1984.
  • Desco Corporation purchased Republic from LTV in 1985.
  • Republic Doors & Frames acquired by Allegion in 2017.
About Allegion™

Republic Doors & Frames is part of the Allegion family of brands. Allegion (NYSE: ALLE) is a global pioneer in safety and security, with leading brands like CISA®, Interflex®, LCN®, Schlage®, SimonsVoss® and Von Duprin®. Focusing on security around the door and adjacent areas, Allegion produces a range of solutions for homes, businesses, schools and other institutions. Allegion is a $2 billion company, with products sold in almost 130 countries. For more, visit www.allegion.com.


Republic is committed to not only providing the best doors and frames in the industry but also to supporting its customers with dependable delivery and exceptional service.

We appreciate your interest in Republic Doors and Frames. If you have any questions please contact us.

Contact Us!

Universal Rough Opening Calculator

Instructions: Use decimal inches, face dimensions, and nominal opening size for butted application
× Close

Drywall Rough Opening Calculator

Instructions: Use decimal inches and results are for standard 2 inch face
Width must be number (ex. 99 or 99.99)
Height must be number (ex. 99 or 99.99)
× Close