Our free cad library consists over 300 sample dwg files. (If you are looking specifically for free cad blocks, the free cad blocks are in a directory called Symbols–DWG.)
Our free library is a subset of our main library. Our main library consists of over 9200 dwg files (CAD blocks, Cad Details etc.) for the fields of Architecture, Engineering and Construction. The files (divided into the major categories of commercial and residential) are organized hierarchically into over 150 categories so you can drill down to what you need quickly.