1/2" Two Gang ReceptXtenders 5-Pack, Receptacle Outlet Box Extender. UL Listed

The thing I like about these are: 1) You can easily stack them when you need something deeper 2) Since they are plastic, it's easy to adapt them to your needs. I asked a question about a 4 gang box. I will be posting an answer to that showing how I was able to make these work for that scenario. In another case, I needed an inch extension, so just place one over the other and it worked great. If they stick out a little far, it's really easy to trim them to be perfect.

Compared to the other style of box extenders, these are much better as they provide a firmer base to screw down to. This can be a big plus when working with cabinets with flexible backs.Although the instructions are a little vague, they seem to indicate the extenders can be stacked. For example, using two 1/2 inch extenders to get a 1 inch extension. Everything snugs down well.I was concerned about using USB receptacles which tend to be pretty wide. No problems fitting two of these side by side in a dual gang extender.

Works great especially where you don’t have a lip on the drywall to catch the traditional box extenders

Worked great when we drywalled Over the horse hair plaster.

Only reason it didn't get five stars is because it does not come with the screws