I am bringing an 1 1/2" conduit into my new shop to feed the subpanel.. The subpanel is on an interior wall that puts it right by the door as you enter. So my footings are 30" deep, should I just cross the footing at the 18" required and wrap it with foam or drop it down under the footing depth?
Depth of conduit through footing
- Thread starter kingchevy
- Start date
Cut a 3 or 4" pvc sleeve, duct tape both ends and place it between the forms at the depth you want it before they pour. I always paint the ends a bright color, makes finding them easier. Then you can pass your conduit through after forms are stripped.
Edit* Re-reading what you wrote you will want to check and make sure the radius of the 1 1/2" conduit will clear whatever size sleeve you choose so you can get the conduit close enough to the wall without having to offset it back.
Edit* Re-reading what you wrote you will want to check and make sure the radius of the 1 1/2" conduit will clear whatever size sleeve you choose so you can get the conduit close enough to the wall without having to offset it back.
Last edited:
Aceman
Well-known member
I'll usually come in after the footings are poured. I'll take some rigid foam board and block a hole out in the bottom of the stem wall forms, right on top of the footing. Knock the foam out after it's poured and run the conduit through.
If this building is detached, you'll need a ufer ground. So make sure a piece of rebar gets stubbed up out of the footings, up through the stem wall and into a stud cavity. Try to do this under the panel if possible. If it's not possible, then just run your ground wire from the panel to where the rebar is stubbed up. An inspector needs to look at the ufer and tag it before the footings are poured. Here in Oregon the building inspector is the one that tags it.
If this building is detached, you'll need a ufer ground. So make sure a piece of rebar gets stubbed up out of the footings, up through the stem wall and into a stud cavity. Try to do this under the panel if possible. If it's not possible, then just run your ground wire from the panel to where the rebar is stubbed up. An inspector needs to look at the ufer and tag it before the footings are poured. Here in Oregon the building inspector is the one that tags it.