A: Building Substructure
B: Building Structure & Shell
C: Building Interiors
D: Engineering Services
E: Specialties, Equipment & Furnishings
F: Special Construction
G: Earthwork & Site Development
Z: Common Components
04: Masonry and Stone
06: Wood, Plastics & Composites
07: Thermal & Moisture Protection
08: Doors & Windows
13: Special Construction
14: Conveying Systems
Site and Infrastructure
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Additional Resources on 4specs
Specifiers Library - tips on specifying products
Changes in Companies - listing companies with name changes, purchases and companies out of business.
Links to other construction related web sites.
WebFormat - our recommendations on a building product website.
CSI Chapter Shows - opportunities for manufacturers to exhibit locally.
4specs Manufacturer Contact Search
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Last Update: October 6, 2015