Environmental Structures, Inc. (ESI) is a national design build firm that specifically specializes in design, engineering, and construction of building facilities relating to the food industry

• See also:
• Masterformat 2004
• 07 50 00 - MEMBRANE ROOFING
• 10 73 00 - Protective Covers
• 10 73 13 - Awnings
• 10 73 16 - Canopies
• 10 73 23 - Car Shelters
• 10 73 26 - Walkway Coverings
• 13 11 00 - Swimming Pools
• 13 11 13 - Below-Grade Swimming Pools
• 13 11 23 - On-Grade Swimming Pools
• 13 11 33 - Elevated Swimming Pools
• 13 11 43 - Recirculating Gutter Systems
• 13 11 46 - Swimming Pool Accessories
• 13 11 49 - Swimming Pool Cleaning Equipment
• 13 20 00 - SPECIAL PURPOSE ROOMS
• 13 21 13 - Clean Rooms
• 13 21 16 - Hyperbaric Rooms
• 13 21 23 - Insulated Rooms
• 13 21 26 - Cold Storage Rooms
• 13 21 48 - Sound-Conditioned Rooms
• 13 22 00 - Office Shelters and Booths
• 13 23 00 - Planetariums
• 13 24 16 - Saunas
• 13 24 26 - Steam Baths
• 13 24 66 - Athletic Rooms
• 13 26 00 - Fabricated Rooms
• 13 27 00 - Vaults
• 13 31 00 - Fabric Structures
• 13 31 13 - Air-Supported Fabric Structures
• 13 31 23 - Tensioned Fabric Structures
• 13 34 00 - Fabricated Engineered Structures
• 13 34 13 - Glazed Structures
• 13 34 16 - Grandstands and Bleachers
• 13 34 19 - Metal Building Systems
• 13 34 23 - Fabricated Structures
• 13 34 56 - Observatories
• 13 44 00 - Modular Mezzanines
• Masterformat 1995
• 07500 - Membrane Roofing
• 10530 - Protective Covers
• 11380 - Sludge Digestion Equipment
• 13010 - Air-Supported Structures
• 13030 - Special Purpose Rooms
• 13120 - Pre-Engineered Structures
• 13124 - Portable & Mobile Buildings
• 13150 - Swimming Pools
• 13230 - Digester Covers And Appurtenances