Builders' Sites

Construction Materials Testing - weblinks related to material reference library, more Builder - news on home designs, building materials, building products, home plans Builderbox - cloud based construction project management, production control platform Product Information Retrieval System On-Line - resource for AEC, including auctions, message board, and huge file collection with thousands of CAD and AutoCAD related files  Sweets Product Marketplace - building product information catalogs, organized by the 16 divisions AECCafe.com - news, companies, design tools and resources by IBSystems 4specs.com - directory of over 3,400 links to manufacturers of specified products for finding product data, specs and CAD details Dow Building Solutions - offers technologies for delivering buildings Contractor Talk - professional construction, remodeling community