American Slate Company is by far the largest and most reputable source of natural slate in the United States.

• See also:
• Masterformat 2004
• 04 40 00 - STONE ASSEMBLIES
• 07 31 00 - Shingles and Shakes
• 07 31 13 - Asphalt Shingles
• 07 31 16 - Metal Shingles
• 07 31 19 - Mineral-Fiber Cement Shingles
• 07 31 23 - Porcelain Enamel Shingles
• 07 31 26 - Slate Shingles
• 07 31 29 - Wood Shingles and Shakes
• 07 31 53 - Plastic Shakes
• 07 32 00 - Roof Tiles
• 07 32 13 - Clay Roof Tiles
• 07 32 16 - Concrete Roof Tiles
• 07 32 19 - Metal Roof Tiles
• 07 32 23 - Mineral-Fiber Cement Roof Tiles
• 07 32 26 - Plastic Roof Tiles
• 09 60 00 - FLOORING
• Masterformat 1995
• 04400 - Stone
• 04410 - Stone Materials
• 04414 - Sandstone
• 04415 - Slate
• 04430 - Quarried Stone
• 07310 - Shingles
• 07320 - Roof Tiles
• 09383 - Slate Flooring
• 09600 - Flooring
• 09634 - Slate Flooring