When I finally made the decision last winter to build something this summer and started looking over costs, it was half again the original cost to double what I originally thought I would I build. Add in two interior walls @ 24', then 18' (last area will be 18' as well), that makes for a lot more bench top & shelf space and easier to control the heat setting where I will spend the most amount of time (primarily in the middle room).
It will only fill up as fast as I let it... I managed to make this 9x11 area in my house last 12yrs.
