ideas for easy drain flooring

I am upgrading from a grow tent to an entire room. Does anyone have any ideas as what I can use for plastic flooring? I'd really like to be easy to drain for when I do a flushing.....

Other than the $100+ plastic trays they sell at the grow shops around town I was looking for something more affordable and able to make my more custom dimensions instead of the standard 4x8ft or whatever

I'm going with linoleum and some plastic cove molding with silicone caulk. I'm not planning on regularly draining onto it, it's more like insurance against spills, but I think it would work. You can get linoleum remnants pretty cheap. The cove molding is a bit pricey though. I like linoleum because it's pretty cheap, easy to install, comes in nearly white, and is easy to clean. You don't even have to glue it down. Make sure your floor is absolutely clean before putting it down though as any bit of dust turns into a bump on the floor. It's also easy to tear/slice so you need to be gentle.

If you're really serious go with tile.

Thanks Homie you da man! That is exactly what I did.