10' x 12' with insulated ceiling and floor. Just over $3,000 custom designed and delivered to our door. 3-phase 1 hp compressor, which will take the cooler from the 80s to 38 degrees in 30 minutes. Next to our cabin, absolutely THE BEST investment we have ever made at camp.
it was already insulated with 4inch thick walls...We added a coolbot and a window unit
And added some hanging chains and a wood roof over the steel...I think our total investment was about $600...and it has been a life saver stays around 38degrees .
I have a better pic somewhere if I find it I will add it later.