Deep Electrical Box Extender

This is a simple box to extend a North American style electrical box where there isn't a deep enough wall to handle thick media cables (i.e HDMI, Ethernet etc) connected by conduit.Dimensions of this box are:7.1cm x 11.6cm x 3.1cm Boost MeConsider boosting me if you like this design! Its easy to do and free and I would be really grateful :)