Getting ready to build a shop- first time in many decades I have done so- perusing this forum for ideas.

Well fellas, I live in Hawaii- air flow is the most important thing to keep things dry, I have 18 acres in the jungle, room is not the problem, building expense is since my last name is not "Gates" LOL- I am mostly limited in cost by two things- 1) roofing is the most expensive item- metal roofing, I have been collecting used roofing for some time, but I will have to buy some new I think as well. 2) concrete- not too bad, but because of where I live, it's hard if not impossible to get a cement truck to deliver- the biggest we can do in 1-2 days with small mixers and pour is 20x20. So there will be 8 different pour days over 8 months. I have a stone wall going around it to keep the pigs out- but there is no way to keep critters out of it, at least not the kind we have- mongoose, rats and occasional birds. IN fact, that is one thing you notice here in Hawaii if you come here- the birds are up on your table in the restaurant begging for food LOL.

Honestly my main other consideration is solar- another huge expense, as I am completely off grid- I have been working on this aspect for 5 years, collecting solar panels and working on a "wood gasifier" to run a 20kw generator. I think I can get my power costs down to near zero after that investment.