The electrical wiring for switches in a single wall home in Hawaii runs on the interior surface of the walls and is covered with a wooden (U) channel shaded molding that comes in single and double sizes. When running just one Romex cable wire when consist of a hot, neutral, and ground wire.

The single channel molding is sufficient but when installing 3 way switches 2 Romey cables have to be run to the switch meaning a wider channel is necessary and a double wire molding is required.

The single wire homes the surface mounted + outlet + switch boxes are made of plastic.

The electrical wiring for switches in a single wall home in Hawaii runs on the interior surface of the walls and is covered with a wooden (U) channel shaded molding that comes in single and double sizes. When running just one Romex cable wire when consist of a hot, neutral, and ground wire.

The single channel molding is sufficient but when installing 3 way switches 2 Romey cables have to be run to the switch meaning a wider channel is necessary and a double wire molding is required.

The single wire homes the surface mounted + outlet + switch boxes are made of plastic.

A knockout hole is made on the side of the box that the wire will extend out from the wooden wire molding is placed over the Romey cable that has been stapped in place with electrical “U” staples. On each side of the wooden electrical molding are grooves 4D, 1 1/2 “ finishing nails are nailed into the grooves approximately every 18” to 24” apart to fasten the molding to the 1” x 8” Tongue and Groove walls, the finish nails are then countersunk into the molding.

In most single wall homes the outlets are mounted just above the 1” x 4” base molding.

The electrical Romex cable is installed in a grove behind the baseboard and capped with a 1” tapered molding.

In some homes, the double electrical channel molding is nailed right on top of the baseboard connecting to the outlet boxes.

Many homes today use plastic and metal surface mount molding but it does not have the charm and nostalgia of the original wooden molding strips.