[Dragonrain]

I think they would work. I use these...

http://www.walmart.com/ip/Norsk-Stor-240251-Reversible-Recyclamat-Multi-Purpose-Foam-Flooring-Black-Gray/13253266

in my bunny room and know that one of our local shelters uses them as flooring in runs/pens as well. The ones in the link I posted are foam and soft, they are good for bunny feet. One of my rabbits had sore hocks for awhile when they just had the linoleum flooring. When I switched to the foam his feet finally healed up I guess he just needed some softer flooring.

As long as they aren't slippery (unless slippery surfaces don't bother Smudge?) and he doesn't chew them I bet they would work out well.

 

[Dragonrain]

They are easy to clean - you can just wipe them off. They are pretty dense foam, so liquids don't soak in and you can spray them with vinegar or whatever and wipe them clean.

My bunnies haven't chewed on them at all, and I've had them set up in the room for maybe around 6 months now? Honestly I wouldn't use it if they chewed on it, just because I'm paranoid. But my bunnies are pretty good at not chewing on everything.

If you have a Wal*Mart near you and can find them they are packaged in clear plastic wrap so it's easy to see/feel what they are like before you buy them.

 

[Dragonrain]

Yeah - I have a linoleum floors and although they are really easy to clean, they just don't work for my bunnies. One of mine refuses to walk on slippery surfaces so he wouldn't leave the cage until I covered the linoleum. Then for another one, the linoleum floor was too hard for him apparently because as soon as I used the foam mats his sore hocks started healing up.

The foam mats are easy to clean too. Like a said, one of the shelters around here uses them for flooring because they are easy to clean, not slippery, and easy on sensitive bunny feet.

 

[Dragonrain]

What are the beach mats made of?

I don't know much about what kinds of 2 X 4's you should look for. I know my cage is made of "untreated poplar hardwood" which is suppose to be rabbit safe. I'd probably go for some kind of hardwood even though I have read that untreated pine is okay. Sorry I don't know too much about this. The only wood other than wooden toys in my bunny room is their cage and I bought that premade so I didn't have to pick the type of wood myself.