Hi I have a old calf barn on our property that measures 12-12-8. It is all wood construction and galvanized roof. My question to you is this a good size? Will fire be an issue? My forge is a good sized charcoal forge. Along with my forge I will have my anvil, post vise, quench bucket and small work table. I have a different building for welding and metalworking but don't want it burning down lol. The reason I want this is because I was operating out side and this is a problem in the Midwest. This barn is not connected to electricity and has a dirt floor.