I know you are considering cinder block; however I'd recommend that you consider cement board. You can purchase Cement board that's reinforced with wire for strength. It's available in two thicknesses. I believe they are offered in sheets of 2 ft x 3ft. It's lighter to work with and has a smooth hard surface that once it is in place would be very difficult for a boxie to climb....except you'll need to do a little extra work at the corners where boxies seem to straddle the joining of two walls. It was made as a substitute for underlayment for tile floors. Check it out at your local DIY center.
Regards,

Ric

Send us pics!!!

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