we buy & sell some equipment with Tractor House some...

Craigslist in most areas is good for scaffolding and other reusable materials, especially the heavy things that have to be picked up locally.

Use the "materials" section.

I hadn't thought about materials....I posted it under "heavy equipment". Thanks for the suggestion.

Never heard of Tractor House...I'll check it out. Thanks!

Contractor Talk has a section for buying and selling. There's a section devoted to excavation contractors as well.

Thanks, Holly, I'll check it out.