HEATKEYS

Architectural information on building materials, manufacturers, specifications, BIM families and CAD details.

CAD Blocks FREE! Download FREE CAD Blocks from a variety of categories and CAD disciplines. Browse before you download as all of our CAD Blocks have detailed thumnail views!

GrabCAD - a free CAD model library with 2D / 3D CAD files available for software like SolidWorks, AutoCAD, Autodesk Inventor, Solid Edge, SketchUp etc.

Siemens USA provides technology and innovation in the fields of Healthcare, Energy, and Industry and Infrastructure

Affordable Royalty Free Stock Photography. Downloads for just $1.00, with thousands of images added daily. Subscriptions available for just $39.00. Our stock photo image search engine contains royalty free photos, vector clip art images, clipart illu...

MIT is devoted to the advancement of knowledge and education of students in areas that contribute to or prosper in an environment of science and technology.

SEL serves electric power utilities and industrial sites worldwide through the design, manufacture, and support of digital protective relays and automation products, plus services for power system protection, control, monitoring, integration, and aut...

This cloud-based ArchiCAD-integrated community database collects and provides direct access to GDL elements. BIMcomponents.com helps you obtain trustworthy 3D or 2D elements in the form of parametric GDL objects.