After receiving a number of inquiries for the specific details of this inquiry, I have decided to post the following details:
The materials I was looking to identify can be viewed at http://www.qcsupply.com/Products/1095.aspx
A well known cage builder/vendor uses all three sizes - the 7/8" thick, the 1.5" thick and the 2" thick.
This material can also be found at http://www.agbuyco.com/pages/65.html
Scroll down to products creep fence, nursery fence and finishing fence. But on this site be sure to distinguish between the solid planks and the individual sections that clip together.
You want products CP78201P, NP153020, NP153024, FP23820 & FP23824.
The website for the manufacturer of this material is http://www.automatedproduction.com/english/swine/confinement/confine.htm
Hope this helps out all interested parties.
Regards,
Jack Daniel