Electrical Boxes Height From Floor

You can meet this requirement by using the hammer method to measure height as long as the bottom of the box is above the tip of the hammer claw.

Electrical boxes height from floor. Enable electricity access anywhere in the building not just walls and ceilings. Floor boxes are handy whether it s for plugging in lamps next to furniture in the middle of a room or powering up av equipment in the middle of a classroom or conference center. If you are setting box heights prior to the installation of the subfloor floor covering or any underlayment be sure to account for this expected height difference. If you haven t installed the flooring yet be sure to add the thickness to the height measurement.

Measure and mark the center of each box. For pricing and availability. Add 2x4 blocks to position boxes away from wide window and door trim. 44 to 46 most electrical switches above floor to bottom of box.

48 floor to center of light switch max per nfpa. 42 floor to bottom of light switch box some installers use 48 to the top of the box 44 to top of box for bath vanity receptacles. If the floor is unfinished add the thickness of the floor. The distance is measured from the middle of the electrical box to the floor so if you re using a standard 4 inch box its top can be 17 or 50 inches above the finished floor.

Electrical receptacle outlets on branch circuits of 30 amperes or less and communication system receptacles shall be located no more than 48 inches 1219 mm measured from the top of the receptacle outlet box nor less than 15 inches 381 mm measured from the bottom of the receptacle outlet box to the level of the finished floor or working platform. Measure 48 inches from the floor with a tape measure and make a mark on the wall or the stud for the center of the box using a pencil. This is also true for counter top outlets in the kitchen and bathroom where switches and outlets are at the same height. Installing electrical boxes for outlets.

For outlets or line them up with existing boxes to determine electrical outlet height. 40 maximum height above finished floor to switch for hud section 8 housing. Mark the height from the floor to the center of the boxes usually 48 in. For example section 1136a of the california building code specifies that the minimum height of an outlet be 15 inches from the bottom of the electrical box to the floor.

The average height for light switches is 46 inches from the floor to the center of the switch box. The standard height for wall outlet boxes is about 12 inches from the top of the floor covering to the bottom of the receptacle box or 16 inches to the top of the box. Sink an electrical outlet into the floor with a floor box from grainger. For switches and 12 in.

Use letters and symbols to identify boxes.