Hey all, I'm wiring my garage with 12/2 romex and i want to run the cable through the ceiling joist and drop down to each receptical mounted to the concrete block wall with romex in conduit. What size conduit can I use for 2 cables of 12/2 (down then back up to next drop) Thanks
Since you are sleeving it through the conduit, fill does not apply. You can use 1/2" if you like. Not sure how easy its going to be. Staple the romex before entering the conduit, make sure the ends of the conduit are smooth, use bushings or, if your using 1/2" emt, you can find an emt to romex fitting at the big box stores.
Before entering the box, you may want to use an offset, since the conduit runs flush to the wall. Use the appropirate clamps to secure the conduit to the masonry.