CJ Nielsen takes a deep dive into old-work junction boxes during a remodel project, using the seemingly simple topic to explain how different box designs affect installation quality, code compliance, and finish details. Working in a home with layered drywall and original lath and plaster, Nielsen compares standard plastic cut-in boxes with newer adjustable and stud-mounted options better suited for difficult wall conditions. He discusses box depth, fastening methods, device alignment, and why minor dimensional differences matter when working with modern switches and screwless cover plates. The video centers on remodel electrical work, practical jobsite problem-solving, and choosing the right hardware for clean, durable installations.

Check out more of CJ's episodes on The Build Show and follow him on Instagram at the links below.
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