# American Gypsum to expand gypsum wallboard plant in Duke, Oklahoma

American Gypsum Company LLC will modernize and expand its wallboard plant in Duke, Oklahoma, with Grenzebach delivering a complete plant by Q3 2027, increasing production capacity by over 25% and reducing operating costs by nearly 20%.

- Type: Expansion
- Announced: 2020-12-14
- Where: Duke, Oklahoma, United States
- Starts operating: Q3 2027
- Status: announced
- Capacity: 25% increase
- Products: gypsum wallboard
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [American Gypsum Company](https://endata.com/companies/51867.md)
- [Grenzebach Group](https://endata.com/companies/17928.md) (supplier)

## Sources

- [grenzebach.com](https://www.grenzebach.com/en-us/company/news-press/detail/grenzebach-sets-new-standards-in-gypsum-wallboard-production-in-north-america/), 2020-12-14: "The goal is to increase production capacity by over 25 % while simultaneously reducing operating costs by nearly 20 %."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.