[Smartguyben]

I used a 6x12 enclosed trailer for the first time last year. I laid down a heavy duty tarp to help protect the floors (track mats and glides went down overtop). I was hoping this would make it easy to remove any snow/melt that fell off the sled. But what I didn't anticipate is that after every ride, the sled would melt enough that I had about 1-2 inches of water that would come off the sled. This would pool in the back corner and freeze on me (I park the trailer on a slant so water runs back towards the ramp door). Any time I went out i'd remove as much snow and ice as I could from the trailer, but it just built up more and more over time.
I'm thinking about installing a shower floor drain so that this melt water can leave the trailer to help with my issues - going to find a metal one that I could heat up if it ices over...
To answer your question though, it's my opinion that unless you let the sled cool off completely before loading it, you will always have water issues in your trailer. Seems like most people just let the water be absorbed into the wood. So anything you do to protect the floor should help increase the time before you need to replace the floor.