Rude! Dealt with a short hispanic dude. First words out of his mouth when he realized I was not a pro was "We only sell full pallets". I shrugged it off and said it would be ok if I ended up with a bit extra. He became obviously annoyed that I wasn't immediately dissuaded. I asked if he could help me calculate the materials I would need. "What are the dimensions?" I proceeded to show him a detailed drawing with all the relevant measurements. "Whats the square footage?" I said "can you help me figure it out?". There are some curves and and things making the shape a bit irregular. He points to a brochure and repeated that he needed the square footage. I said "so you can't help me?" and he just repeated himself again glaring at me from a face with the look that it had just bit into a squishy turd.
These guys are obviously not interested in selling directly to the public so don't waste your time. This is the complete opposite of how my experience went when dealing with them on a project about 15 years ago.