CAD/BIM Library of blocks "aaa"
Free CAD+BIM Blocks, Models, Symbols and Details
Free CAD and BIM blocks library - content for AutoCAD, AutoCAD LT, Revit, Inventor and other 2D and 3D CAD applications by Autodesk. CAD blocks and files can be downloaded in the formats DWG, RFA, IPT. You can exchange useful blocks and symbols with other CAD and BIM users. See popular blocks.
Selected blocks (choose category on the left):block
You can also download CAD blocks directly from your AutoCAD, without logins and any limitations.
See the add-on application Block Catalog for AutoCAD 2013.
See also block-statistics and the latest 100 blocks.