Well I am almost done with the interior panels in my shop and will be doing the electrical next. My question is can I use EMT in this application? I already read the NEC rules for EMT but, they ae not clear. What is "subject to major physical damage"? I don't plan on beating on the conduit with a hammer, there is no heavy equipment driving in the building. I know at work (I'm an industrial electrician/electronic technician), we only use rigid but, the environment is pretty nasty with lots of fork lifts and machinery. I will be welding, grinding, etc.. in the shop, is that the potential for "major physical damage"? I can run rigid but, it will be more time consuming because I don't have the bender and threader at home, that means I will have to run back and forth to work or rent the equipment (if that's possible). This shop is at my home and for personal use.