Electrical Boxes, Covers, Fittings and Straps

What are the Electrical Boxes Used In Homes?
Electrical boxes come in many shapes and sizes. These boxes are used for outlets, switches, ceiling fixtures, junction boxes, and for keeping wires splices dry. Depending on the size and shape of the box, electrical boxes hold different amounts of wires. There are round, square, retangular, shallow, weatherproof, and extension boxes.

What is a Box Extender?
If you have a box that is too far in the wall, a quick fix is a box extender. These are box-shaped rings that vary in size and are placed over the existing box face to flush the face out with the wall. You probably have encountered an electric box with a switch or outlet that is set in too deeply to allow a cover plate to be installed. Or maybe the switch or outlet wasn't secured tightly because the box is set back too far. By using these rings, you can have a flush finish without having to remove the old box and replace it with a new one.

What Are Plastic Electrical Boxes?
Plastic electrical boxes have their pluses and minuses. Because they are plastic, there is no need to attach a ground wire to it. Since it is made of a non-conductive material, switches and outlets cannot short out if they touch the side of the box.