06/04/2026
**Wiring in shower wall, with receptacles on the opposite side — am I interpreting this correctly?**
I just want to make sure I’m okay before I get too far into this.
My understanding of **406.9(C)** is that the 3' x 8' restriction applies to receptacles located on the shower/tub threshold side of the wall, and that it does not necessarily prohibit wiring inside the wall itself or receptacles installed on the opposite side of that wall.
The code section reads:
“Bathtub and Shower Space. Receptacles shall not be installed within a zone measured 900 mm (3 ft) horizontally and 2.5 m (8 ft) vertically from the top of the bathtub rim or shower stall threshold. The identified zone is all-encompassing and shall include the space directly over the tub or shower stall.”
So, am I correct that wiring can be inside the shower wall and that receptacles on the opposite side of that wall are allowed, as long as they are not actually installed within the defined tub/shower zone? I’d appreciate any clarification before I move forward. ⚡