You can - some bucks will make it their life goal to get the box messy though. I usually put plastic floor mats (like they sell at cage companies) in with my bucks to give them something to sit on
People also use tile *Not the laminate* and I think even slabs of concrete. I put an amazon link below that'll show you the plastic mats because I couldn't find them the first few times I searched... https://www.amazon.com/rabbit-plastic-w ... e+supplies
I've had much success with tile. I had some left over from tiling my son's room so it found it's way into each cage. 24x12 so they can stretch out if they like but doesn't take up the whole cage.
If your buck is naturally messy though - he will use the tile to make a mess of himself. Try to put the tile away from the area that uses as a restroom