bluwtr49 wrote:
Thanks for the comment regarding the door size, I will change it to 12W by 14 high.  The building width is still being consider...24" might be a bit of an overkill.  If I went 18" that would seem to be enough leaving 5' on each side..well maybe 20'.  I suspect the cost per foot in width isn't a lot but there might be some cost efficient size based on material sizes, commonality or the like.
Go with 20' wide. This will allow you to open the basement storage doors and still have room to walk around. I went for 15' wide and could still open the basement doors but couldn't really walk around with the doors open. A 14' high door leaves enough vertical room for antennas, etc..