For outlets or line them up with existing boxes to determine electrical outlet height.
Old house with electrical outlets close to the floor.
While varying somewhat by area of the country in the u s latin america europe and other areas there are recognizable generations of electrical wiring knob tube greenfield armored cable or bx wiring plastic or nm.
For switches and 12 in.
Legrand wiremold wmfb series 1 2 in.
For example an electrical outlet can be placed between 12 and 16 inches from the floor.
Some electricians will patch the holes.
15 amp rectangular cover 2 outlet residential ac floor box brass model wmfb1drb 52 39 52 39.
We illustrate a variety of types of electrical wiring found in older buildings.
There are several things to consider with the installation of electrical outlets.
Expect to pay an electrician about 100 per first floor outlet and double that for second floor work.
How to determine what voltage and amperage service a home how to recognize knob and tube electrical wiring and unsafe.
Use letters and symbols to identify boxes.
Read our guide.
How to inspect evaluate problems in old house electrical system electrical wiring how to inspect repair or improve electrical grounding in older homes how to detect repair improper electrical outlet polarity.
Old electrical wiring types photo guide to types of electrical wiring in older buildings.
Boxes brackets fan box.
Mark the height from the floor to the center of the boxes usually 48 in.
This home depot guide helps you to choose the ideal electrical box for your home wiring project.
The electrician will discuss with you where you want outlets installed and how many are needed to address the following issues.
No gfcis illustration by ian warpole.
Add 2x4 blocks to position boxes away from wide window and door trim.