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Strait-Flex®

GSC/Ryan/ASI & Strait-Flex – Working Together to Treat You Right

As fellow GMS companies, Gypsum Supply Company (GSC), Ryan Building Materials (Ryan), and ASI Building Products (ASI) are authorized dealers of Strait-Flex® joint treatment and bead products, through our construction yards across the Great Lakes region in Michigan and northwest Ohio.

The Strait-Flex Difference

From the very beginning, Strait-Flex has focused on manufacturing products that solve construction problems. In his 25+ years as a carpenter and professional homebuilder, founder John Conboy encountered numerous opportunities to improve the quality and efficiency of the drywall finishing process. This innovation resulted in the creation of new drywall finishing products that eased installation and empowered drywallers to maintain straight alignments of intricate off angles.

Since 1995, with the introduction of Strait-Flex drywall tape, the Strait-Flex name has continued to grow in recognition, popularity, and trust. Today, as part of the Clark-Dietrich family of companies, the expansive Strait-Flex product line is known for its quality finish and ease of use with construction professionals and builders worldwide. 

Partner with GSC, Ryan, and ASI for All Your Joint Treatment and Finishing Needs

Gypsum Supply, Inc., Ryan Building Materials, and ASI Building Products carry a wide variety of quality joint treatment products, including:

  • Ready mix compounds
  • Setting compounds
  • Textures
  • Tapes
  • Veneer plaster boards
  • Veneer basecoat plasters
  • Veneer finish plasters
  • Conventional basecoat plasters
  • Finish plasters
  • Plaster additives
  • Cement board underlayment

Buy Strait-Flex Joint Treatments and Bead from GSC, Ryan, or ASI

Gypsum Supply, Inc., Ryan Building Materials, and ASI Building Products carry a wide variety of quality joint treatment and bead products from Strait-Flex, including:

  • Butt-tape
  • Drywall shims
  • Roll patches
  • Original corner bead
  • Edge-tape
  • Crack-tape
  • Super-bond joint compound additive

Strait-Flex News and Product Updates

Stay up to date with all the latest product releases, improvements, and advancements from Strait-Flex.

  • Taping Inside Corners with Strait-Flex Learn more
  • ClarkDietrich Announces Acquisition of Strait-Flex Learn more

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