A. Manufacturers - Gypsum-Based Board: 1. CertainTeed Corporation: www.certainteed.com. 2. Georgia-Pacific Gypsum: www.gpgypsum.com. 3. National Gypsum Company: www.nationalgypsum.com. 4. USG Corporation: www.usg.com. 5. Substitutions: See Section 01 60 00 - Product Requirements. B. Gypsum Wallboard: Paper-faced gypsum panels as defined in ASTM C1396/C1396M; sizes to minimize joints in place; ends square cut. 1. Application: Use for vertical surfaces and ceilings, unless otherwise indicated. 2. At Assemblies Indicated with Fire-Resistance Rating: Use type required by indicated tested assembly; if no tested assembly is indicated, use Type X board, UL or WH listed. 3. Thickness: a. Vertical Surfaces: 5/8 inch. b. Ceilings: 5/8 inch. c. Multi-Layer Assemblies: Thicknesses as indicated on drawings. 4. Paper-Faced Products: a. American Gypsum Company; FireBloc Type X Gypsum Wallboard: www.americangypsum.com/#sle. b. CertainTeed Corporation; Type X Drywall: www.certainteed.com/#sle. c. Georgia-Pacific Gypsum; ToughRock Fireguard X: www.gpgypsum.com/#sle. d. Gold Bond Building Products, LLC provided by National Gypsum Company; Gold Bond Fire-Shield Gypsum Board: www.goldbondbuilding.com/#sle. e. USG Corporation; USG Sheetrock Brand EcoSmart Panels Firecode X: www.usg.com. f. USG Corporation; USG Sheetrock Brand Firecode X Panels: www.usg.com. g. Substitutions: See Section 01 60 00 - Product Requirements.
