I have 2 covered bunks, 190' and 240'.  Trouble with covered bunks is getting the feed in it...I made myself a cart from a narrowed up chopper box. I wouldn't recommend putting 2x's in the inside of the bunk, but that's the way it came, and it does guide my cart. The base is a 4" concrete poured slab.

It's nice not having to shovel snow and/or having wet feed...

I tried attaching some pictures, but I can't get them compressed enough.  Any ideas on how to do that?

Lynn