Herman Miller, offer a download link for their materials/textures. However, this is really only useful for the materials already defined in the family. With furniture, for example, there are lots of material options. The definition of the material is more than just the texture itself; image scale, cutouts, reflections, etc. To help with this challenge, Herman Miller also offers a Revit Material Library as shown in the image from their website below.
- I wish more manufacturers would offer Material libraries; some don't even offer the texture files.
Interior Design using Autodesk Revit 2018, touches on the use of content and textures from manufactures.
There is a lot more to say on this subject, but that will be for future posts.