ok! So, at the last minute I decided I would add plexiplass to my 3/4" CP. I hee'd and haw'd about it for a while and decided I should remake my CP out of 5/8ths so the plexi could line up with the T-molding.
I went to 2 home depots and 2 lowes. A full sheet cost $15. I didn't want to buy more wood than I needed. But hell, with the price of gas, I'm actually losing money now.
It appears they don't cut the 5/8ths into a 2x4 sheet. It's full sheets or nothing. Anyone else have fun looking for 5/8ths?
I had an amusing conversation with a home depot guy:
me "Hey, do you work in lumber"
HDG "Yeah"
me "I'm looking at these 2x4 sheets of plywood" and I point to the wood
me "Do you have this in 5/8ths?"
HDG "No, 3/4" is as big as we go"
me "Well 5/8 is smaller than 3/4"
HDG "Yeah"
silence
me "Ok, thanks!"