What American Gypsum does

American Gypsum Company LLC is a privately held Texas-domiciled manufacturer of gypsum wallboard products for the North American drywall industry. The company operates five manufacturing plants with six production lines across New Mexico, Oklahoma, South Carolina, and Colorado, producing nearly four billion square feet of wallboard annually, positioning it as the fifth largest producer in North America. Core product families — LIGHTROC (lightweight), CLASSICROC (standard), FIREBLOC (Type X and Type C fire-rated), and M-BLOC (mold/moisture resistant with ASTM D3273 score of 10) — are built on a fire-resistant gypsum core encased in 100% recycled paper facings and tested to ASTM C1396 and UL fire-rated assembly standards, with multiple SKUs achieving GREENGUARD GOLD and Children & Schools indoor air quality certifications.

The company's business model is a single-stream B2B hardware sales operation: it sells finished wallboard through a nationwide dealer/distributor network, supported by direct phone sales lines and a digital AGBoardroom customer portal providing 24/7 order, shipment, invoicing, and volume data access. Vertical integration with owned gypsum mines — including what the company describes as some of the purest deposits in North America — supplies both mined and synthetic gypsum feedstock to its plants, enabling truck and rail shipment nationwide. Demand generation is anchored by the AG Design Library, a UL assembly search tool that drives specification by architects and design professionals, complemented by audience-segmented resource centers (architects, dealers, contractors) hosting CSI specifications, HPD/EPD documentation, and LEED contribution data. No public revenue, capital structure, or management-team data is disclosed; the firm is independently owned with no parent company, subsidiaries, or funding rounds identified.

Name

American Gypsum

Legal name

American Gypsum Company LLC

Website

https://americangypsum.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

251–500 employees

Short description

American Gypsum is a privately held Dallas-based manufacturer of gypsum wallboard products, operating five plants producing nearly four billion square feet annually as the fifth largest North American producer, selling through a nationwide dealer/distributor network serving residential and commercial construction.

Ownership category

akta.pro rank

Product category

Gypsum Wallboard Manufacturing

NAICS

Gypsum Product Manufacturing (327420)

SIC

Concrete, Gypsum & Plaster Products (3270)

akta.pro primary industry

Gypsum Board & Drywall Panels (IMADAEAA)

akta.pro secondary industries

Exterior Sheathing & Glass-Mat Gypsum Panels (IMADAEAI), Acoustic Gypsum Boards & Sound Control Systems (IMADAEAK), Gypsum & Anhydrite (IMAEAFAK)

Keywords

• Gypsum wallboard products
• Fire-rated drywall
• Mold resistant panels
• Construction materials manufacturing
• Building interior systems

Headquarters

HQ city

Dallas

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Personnel, Marketing or Sales

Revenue model

1. Gypsum Wallboard Product Sales: Manufacturing, selling, and distributing gypsum wallboard products throughout the United States. Products include regular/non fire-rated, fire-rated (Type X, Type C), mold & moisture resistant, and factory built housing panels sold through dealer/distributor network.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

American Gypsum manufactures and distributes gypsum wallboard products for the drywall industry, including regular/non fire-rated, fire-rated (Type X and Type C), mold and moisture resistant, lightweight, and factory built housing panels. Products are sold through a nationwide dealer and distributor network for use in residential and commercial wall and ceiling construction applications. All products are manufactured in the United States in compliance with ASTM C1396, using gypsum cores encased in 100% recycled paper facings.

Product overview

American Gypsum manufactures a comprehensive portfolio of gypsum wallboard products organized into four main categories: Regular/Non Fire-Rated products (LIGHTROC® Lightweight, CLASSICROC® Gypsum Wallboard, Exterior Sheathing, Exterior Soffit, Interior Ceiling, and CLASSICROC® Laminate Base); Fire-Rated products (FIREBLOC® Type X and Type C, M-BLOC® Type X and Type C, M-BLOC® Ekcel® Type X, M-BLOC® Shaft Liner Panel, M-BLOC® Abuse Resistant Type X, M-BLOC® Impact Resistant Type X, and LIGHTROC® Type X); and Mold & Moisture Resistant products (M-BLOC® Gypsum Board). The products range from standard wallboard for residential and commercial interiors to specialized fire-rated, abuse-resistant, and mold-resistant panels. The company also provides factory-built housing solutions. All products feature gypsum cores encased in recycled paper and are tested to ASTM standards with GREENGUARD certifications for indoor air quality.

Differentiator

Problem solved

Functional benefit

Brands

• LIGHTROC®: Lightweight gypsum board product line including regular lightweight and Type X fire-rated versions.
• CLASSICROC®
• FIREBLOC®
• M-BLOC®

Products and services

• LIGHTROC® Lightweight Gypsum Board Lightweight gypsum wallboard designed for use in standard residential and commercial applications where framing members are spaced up to 24 inches on center. Aimed at contractors and builders needing lighter-weight alternatives.
• CLASSICROC® Gypsum Wallboard Standard gypsum wallboard consisting of a fire-resistant gypsum core encased in 100% recycled natural-finish paper on the face side and liner paper on the back side. Used as a covering material for walls or ceilings in new building construction or renovation work.
• Exterior Gypsum Sheathing Gypsum board designed for exterior applications providing a solid background for various exterior finishes. Used in residential and commercial building envelopes.
• Exterior Soffit Gypsum Board Gypsum board specifically designed for exterior soffit applications.
• Interior Ceiling Gypsum Board 1/2" Interior Ceiling Board specifically formulated to meet the need for a lower weight ceiling panel with increased core integrity, with sag resistance equivalent to 5/8" Type X wallboard. Designed for wall and ceiling applications spaced no more than 24" on center. GREENGUARD GOLD certified.
• CLASSICROC® Laminate Base Gypsum Board Gypsum board designed as a base layer for laminate applications, including factory built housing construction.
• FIREBLOC® Type X Gypsum Board Type X fire-rated gypsum wallboard that provides not less than one-hour fire resistance when tested in specified building assemblies. Fire-resistant gypsum core encased in 100% recycled paper.
• FIREBLOC® Type C Gypsum Board Type C fire-rated gypsum wallboard with enhanced properties to achieve superior performance in specific fire rated assemblies.
• M-BLOC® Type X Gypsum Board Type X gypsum panel with mold and moisture resistance, featuring a fire resistant core encased in mold and moisture resistant blue face paper and brown back paper manufactured from 100% recycled paper.
• M-BLOC® Type C Gypsum Board Type C gypsum panel developed as an improved mold and moisture resistant wallboard with additional properties to enhance the core of this Type X wallboard for superior performance in specific fire rated assemblies. Achieves perfect score of 10 for mold resistance per ASTM D3273.
• M-BLOC® Ekcel® Type X Gypsum Board Type X gypsum board with mold and moisture resistance, featuring enhanced properties for specific fire rated assembly performance.
• M-BLOC® Shaft Liner Panel 1" thick shaft liner panel designed for use in shaft wall assemblies and area separation wall systems, providing fire resistance and sound control.
• M-BLOC® Abuse Resistant Type X Gypsum Board Type X gypsum board with abuse resistant properties, designed to withstand impact and damage in high-traffic areas while maintaining fire rating.
• M-BLOC® Impact Resistant Type X Gypsum Board Type X gypsum board with impact resistant properties, engineered to resist hard impacts in commercial and multi-family residential construction.
• LIGHTROC® Type X Gypsum Board Lightweight 5/8" Type X gypsum wallboard engineered to be lighter in weight than traditional Type X wallboard while maintaining the same performance standards. UL classified and approved for use in over 100 fire rated assemblies including walls, ceilings, horizontal membranes, shaftwalls, columns, beams and head-of-wall details. GREENGUARD Indoor Air Quality Certified.
• M-BLOC® Gypsum Board Mold and moisture resistant wallboard with a fire resistant core encased in mold and moisture resistant blue face paper and brown back paper manufactured from 100% recycled paper. Achieves perfect score of 10 for mold resistance per ASTM D3273 at an independent ISO 17025-2005 accredited laboratory. Approved for exterior soffits and sidewalls in protected corridors/breezeways. GREENGUARD GOLD certified.
• ME Area Separation Firewall System 2-1/2 hour fire rated system (UL Design V344) with Sound Test STC 64, designed for multi-family housing separating living units in townhomes, twin homes, duplexes, condominiums and apartments.

Quantifiable outcome

• M-Bloc achieves perfect score of 10 for mold resistance per ASTM D 3273
• +3 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Drywall Finishing CouncilminorOthersThe Drywall Finishing Council helps the industry with standards for both specification and finishing of gypsum wallboard. Listed as an important industry link for architects.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Knauf: Global gypsum and building materials group that acquired USG; operates an integrated mine-to-wallboard business across multiple continents and competes with American Gypsum across North American product categories through the Knauf USG subsidiary.
• Eagle Materials: Public U.S. building materials company with a significant gypsum wallboard segment alongside cement, wallboard, and paperboard; comparable wallboard product strategy and plant economics, though operates as a diversified materials producer rather than pure-play.
• Georgia-Pacific Gypsum: Dens® brand glass-mat gypsum sheathing and ToughRock® wallboard from Koch-owned Georgia-Pacific; broader building products portfolio but directly competes in residential and commercial wallboard with American Gypsum's product lines.
• CertainTeed (Saint-Gobain) Gypsum: Saint-Gobain's North American gypsum division producing SilentFX®, Habito®, and GlasRoc® sheathing; competes in fire-rated, acoustic, and mold/moisture categories that overlap with American Gypsum's M-Bloc and FireBloc lines.
• LafargeHolcim (now Holcim): Global building materials giant with gypsum wallboard operations in Latin America, Europe, and selective U.S. presence; comparable wallboard manufacturing capability and product breadth, though American Gypsum's U.S.-only focus differentiates its geographic footprint.

Direct peers

• PABCO Gypsum: Family-owned Western U.S. gypsum wallboard producer operating plants in Nevada and California; comparable private, regionally anchored wallboard specialist competing in residential and commercial segments with similar fire-rated and specialty offerings.
• National Gypsum Company: Privately held manufacturer of Gold Bond® gypsum board, PermaBase® cement board, and ProForm® finishing products; directly comparable as a private, multi-plant wallboard specialist with similar specialty product strategy and channel distribution.
• USG Corporation (now Knauf USG): Largest North American gypsum wallboard producer with Sheetrock® as the category-defining brand; competes head-to-head with American Gypsum across regular, fire-rated, and specialty wallboard through overlapping dealer channels and comparable product formulations.
• Continental Building Products (acquired by Saint-Gobain): Was a publicly traded pure-play gypsum wallboard manufacturer with U.S. plants producing LiftLite®, Mold Defense®, and Firecheck®; comparable product portfolio and plant footprint prior to its acquisition by Saint-Gobain in 2020.

Emerging players

• James Hardie Industries (Fermacell): Global building materials leader offering Fermacell® fiber gypsum boards and HardieBacker® cement board as specialty wallboard alternatives; overlapping fire-rated and moisture-resistant applications with American Gypsum's M-Bloc and FireBloc lines.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/americangypsum

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about American Gypsum