A guy in my Club made this set up, its pretty sweet, got heat wires running the bottom and all kinda of monitors and stuff.
here's how a differnt guy in my club does it. also looks nice, he said he doesn't have mice issues, of course I had to ask. There is yet another gentleman in my club who I have spoken to about this topic, and he does a different method. he dug down 4 ft deep "below the frost line" and has a "pit" which sounds super fancy and nice and stores his trees down there covered with a bunch of peat moss, and mouse poison. I haven't posted mine, as im a little worried about it.. going with a different method than I did last year, last year I jsut buried the pots in my garden bed totally exposed to wind.. didn't loose a single one, but had quite a bit of unwanted animal pruning. supposed to down to negative 4 with 20 mph winds here in the next 24-48 hours, but we got about 8 inches last night.. and now its all melting, then it will be 4 degrees at about midnight......