American Gypsum Company orders new Grenzebach wallboard line for Duke plant

American Gypsum Company has ordered a new wallboard production line from Grenzebach for its Duke, Oklahoma, plant, expanding capacity by 25% and reducing operating costs by 20%. Delivery is expected by mid-late 2027.

“The new line will expand the Duke plant’s capacity by 25%, while reducing its operating costs by 20%.”globalgypsum.com

• 1 source
• globalgypsum.comAmerican Gypsum Company orders new Grenzebach wallboard line for Duke plant - Gypsum Sector News - Global GypsumGlobal Gypsum staffJan 29, 2026

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