Recently I added a family member and his name is Myles. He needed a home so before we picked him up I built him one of these for him to grow into. The one pictured is actually the second one I built that was built for a friend. I followed the original instructions. I used a couple different bits of material. My table top is 1x4's and for the sides i used bead-board. I painted it an off white with eggshell finish. The table top is stained with Minwax Ebony stain. I love how it turned out and most of all my puppy enjoys it as well.
I left the bottom open. The dimensions in the plans make it so you can set the crate right on top of a crate replacement trey series 700 from PetCo. This makes it very easily to clean by just lifting the crate off the trey and hosing it off and also prevents the wood from absorbing any liquids.