Questions and Answers for Southwire Smart Box 1-Gang 22.5/c Adjustable Depth Device Box

A:  No. By my measurements, the outside dimensions of the box are: width 2.23”, height 3.80” and depth 3.75”. It has knockout slots for 2 #12 wires and 2 #14 wires. The box has a lot of internal work space, and works well for dimmer switches that need the additional depth. I’ve used these for dimmer switches in my projects previously.

A:  In the photo, the width and depth numbers are reversed.  The depth is the stated width and the width is the stated depth.

A:  Neither of those devices should be a problem.

A:  Maximum wall thickness is infinite. Minimum wall thickness is roughly 3 1/2" to4". I don't see what difference the maximum wall thickness makes. Think about your question and rephrase it, please.

A:  I would say about 1-1/4" I use these boxes very often.

A:  If you are referring to the thickness of the finishing material (sheetrock, plaster, paneling, etc.), then measuring to the point of the mounting screw exits, it's about 1 7/8". But that would put the screw right on the corner of the stud, a rather weak point. I would think that 1 1/2" would be my reasonable personal max thickness. That would be 3 layers of 1/2" rock.. But YMMV.