What Size Garage Would You Build?

[Sbeck09]

I just moved onto my new property which includes a 40x40 shop with 20ft ceilings. Height is great, but I am in disbelief at how little space I have after putting 1 project vehicle in there with 2 Cam Ams and all my tools. I'm about to build a mezzanine just to get more space for shelving. Another 20ft of width on the structure would have gone a long way now that I see it.