Please ensure Javascript is enabled for purposes of accessibility CertainTeed Expands its Trusted Corners Portfolio with the New LEVELLINE® Outside 90 | CertainTeed Skip to main content

Mega Menu

A box of Levelline drywall Corners sticks and flex roll on a white background.

CertainTeed Expands its Trusted Corners Portfolio with the New LEVELLINE® Outside 90

Malvern, Pennsylvania — CertainTeed, a leading manufacturer of exterior and interior building products and a subsidiary of Saint-Gobain, is proud to introduce the latest addition to the LEVELLINE® brand of high-performance drywall corners: LEVELLINE® Outside 90.

LEVELLINE Outside 90 corner beads deliver on durability and are designed to create perfect outside corners in record time.  With its impact resistant plastic core, joint tape, and formulated surface paper, LEVELLINE Outside 90 corners are lighter and easier to handle than paper faced metal products.  Unlike paper metal, they are flexible and forgiving, and will not dent, crack, or rust.  The joint tape guarantees unparalleled bonding of the corner to the drywall while also using less compound and helps reduces overall dry time, making it faster to finish the job.

Drywall complaints are the #1 callback item in new home construction.  Corners tend to be the most prone area to trade damage and thus it is important to have a product that can withstand the normal wear and tear of the build process.  Contractors that are still using a metal corner bead product end up dealing with costly call backs to correct cracking, chipping, and denting of corners finished with metal bead.  LEVELLINE Outside 90 corners provide superior impact resistance and reduce the amount of call backs saving contractors time and money.

CertainTeed is committed to manufacturing lightweight and sustainable building materials for the continuously evolving construction industry.  All of CertainTeed’s drywall panels, tape, and corners, including the new LEVELLINE Outside 90, have achieved GREENGUARD® Gold certification.  Products that have achieved GREENGUARD Gold Certification are scientifically proven to meet some of the world’s most rigorous third-party chemical emissions standards, helping to reduce indoor air pollution and the risk of chemical exposure.  This achievement makes our products even more ideal for use in homes, schools, and healthcare facilities.

LEVELLINE Outside 90 corner beads are available in 8’, 9’, 10’, and 6’-10” lengths.

To request a sample or discuss how LEVELLINE Outside 90 meets your project’s needs, please contact your CertainTeed sales representative.  Learn More at

About CertainTeed

Through the responsible development of innovative and sustainable building products, CertainTeed, headquartered in Malvern, Pennsylvania, has helped shape the building products industry for more than 115 years. Founded in 1904 as General Roofing Manufacturing Company, the firm’s slogan “Quality Made Certain, Satisfaction Guaranteed,” inspired the name CertainTeed. Today, CertainTeed is a leading North American brand of exterior and interior building products, including roofing, siding, solar, fence, railing, trim, insulation, drywall and ceilings.

About Saint-Gobain 

Worldwide leader in light and sustainable construction, Saint-Gobain designs, manufactures and distributes materials and services for the construction and industrial markets. Its integrated solutions for the renovation of public and private buildings, light construction and the decarbonization of construction and industry are developed through a continuous innovation process and provide sustainability and performance. The Group’s commitment is guided by its purpose, “MAKING THE WORLD A BETTER HOME”.  

€44.2 billion in sales in 2021   
166,000 employees, located in 75 countries   
Committed to achieving Carbon Neutrality by 2050 



For time sensitive enquiries after 5pm on weekdays, or at any time during the weekend, please contact the following: - 800-394-5383


For information regarding products contact Sales Support: