I'm looking for some good royalty free stuff I can make a good interior roof truss with (think big box warehouse like Wal Mart or Lowes).

Thanks!

Even a side view of a box truss would suffice. It's not like I'm trying to recreate WWG material here.

I assume that you mean free textures. Royalty-free doesn't mean free, just that no royalties are required after the image is purchased.

So here's a list of free textures and samples where you might find something:

Bittbox
Angelwalk textures
Paul Bourke textures
TextureKing
SXC.hu
CG Textures
Smashing Texture Contest Results
Tiled backgrounds designer
Lost and Taken
Arbent
GoMedia
High Resolution Textures

3D Cafe Textures (Metal) Didn't work when I just tried it due to site revision in the free section but as I recall it has some nice textures. May be good to check in the future.

. Check for any licensing restrictions, especially for the samples.

For pay would be fine too. The kind of image I'm after appears to be sufficiently rare that I'm nearly willing to pay up on Turbosquid (and even with normal and height maps I can't see for the life of me why one is worth $14... I can duplicate most of their work on my own if I get off my duff).

I just finished a building of mine. It's not strictly a kitbash, but it'll involve some WWG stuff. I'll post pictures once I get more done. I finally ginned up a good interior that I'm satisfied with.