Extending The Furniture Library
The collection of furniture libraries that I download can be found on this page,
Also, see the official Sweet Home 3D downloads page for more info.
Note: If you import libraries and they have an adverse effect on the performance of your Sweet Home 3D installation, you can manually delete the libraries by going to the folder,
c:/Users/[Your Username]/eTeks/Sweet Home 3D/furniture/[library].sh3f
Also included is a Library of few of the models I have created for Sweet Home 3D.