Hey, I know this is an old thread.
My booth was removed by prior owner and I'm using a TT table and chairs I got used, but have floor holes and damaged sections. So after looking around I went with a similar waterproof vinyl plank from Lowes. Its designed to "floating" however, I'm not a big floating fan and have installed 1500sf of 5/8" bamboo hardwood in my house glued down. So, I'm going to glue it. I am somewhat concerned about heat/cold cycles, but WTH, I live in Texas and its mostly just hot. Its not a huge area either where you have to worry about adding all the expansion and contraction.
The flooring is probably a bit heavier, 2 boxes seem enough to do my trailer 27' and weight maybe 30lbs. Its pretty dense stuff.
The guy who posted about reinforcing his floor - yea that sounds good - I've ripped homes down to studs and replaced main beams, etc so I know about construction, but if you look at the pictures...his trailer is pretty much permanently installed in his yard and looks to be going nowhere. In that case, sure you can add as much as you want to. I tow with a 1/2 ton Tundra and have boondocked, the water and gear make the truck struggle a little, so since I didn't really have an issue with my floor (the T&G actually will even add stiffness) I'm not bothering.
I'll take pics when I do it, I only got materials but it looks similar to Big Sky's.