13.34.00 Fabricated Engineered Structures
13.34.19 Metal Building Systems
13.34.13 Glazed Structures 13.34.13.13 Greenhouses 13.34.13.16 Solariums 13.34.13.19 Swimming Pool Enclosures 13.34.13.23 Sunrooms 13.34.13.26 Conservatories 13.34.16 Grandstands and Bleachers 13.34.16.13 Grandstands 13.34.16.53 Bleachers 13.34.18 Post Frame Building Systems 13.34.19 Metal Building Systems 13.34.23 Fabricated Structures 13.34.23.13 Portable and Mobile Buildings 13.34.23.14 Fabricated Classroom Buildings 13.34.23.16 Fabricated Control Booths 13.34.23.19 Fabricated Dome Structures 13.34.23.23 Fabricated Substation Control Rooms 13.34.23.26 Fabricated Cold Storage Buildings 13.34.56 Observatories