Mark: here is a link to some pics I took today of the
underfloor DC & Electrical. They're all from inside the shop. I just didn't have it in me to crawl underneath today. :no: I wrote a brief description for each pic to help identify what you're looking at. Let me know if something doesn't make sense and I'll try to clarify.
Take a look at the duct work hanging from the ceiling using 1x2 furring strips and 50" plastic zip ties. I came across this trick in one of the magazines when I was researching my system, and it was extremely helpful. I installed the duct work by myself, so the zip ties were like an extra pair of hands. Cut a slight notch in the furring strips about every two feet. Then fasten the furring strips to the ceiling. Run a 50" zip tie through the notch and connect the two ends, but do not tighten. Once you've assembled a long piece of duct work, just slip it through the open loops. Or you can slip sections of duct into the loops and connect them, using the ties as a cradle to hold the work. When you're ready to close up the final assembly, gradually start tightening the zip ties across the length of the duct, pulling the duct up snug to the ceiling. If you're working alone, this really helps.
For the electrical, I assume you are planning a separate service panel for the shop? I went w/ a 200a box w/ 40 spaces. It cost a little extra, but it's worth it to have room for all the current circuits, plus anything I may want to add in the future. I didn't feel like I had to cram too many tools on each circuit, running the risk of overloading them. Just a thought.
Another electrical thought (I'm just full of them :gar-La
: If you know exactly where your service panel will be located, you may want to run a 2" piece of electrical conduit through the floor and into the crawl space. This will make it easier to run lines underfloor later. I didn't think about this until it was too late. :widea:
I hope some of this helps.
Bill