Jim,
It was a somehow defective board from the design department at the company where I work. So, essentially it was a freebie. I forgot where they get them but we order a lot. I found a similar-sized Gaterboard on the Internet and it was surprisingly inexpensive compared to the Hemosote that I bought at a lumber yard and had them cut to size.
And, I'm with you on the vacumming thing. :-) But now I really have to get to it before I "find" one of those tack points that disappeared into the carpet pile when I snipped it off. Don't want to have to call in OSHA!
Tomlinson Run Railroad