How wide is a triple switch plate?

7.5″ wide





Triples (3-gang) are 7.5″ wide. Quadruple (4-gang) plates are 9.5″ wide. Five gang (5-gang) are 11.5″ wide. Six gang (6-gang) are 12.5″ wide.

Are all switch plates of standard size?

Switches and wall outlet cover plates are screwed onto the device they are covering and come in three general sizes: Standard. Preferred (also known as midsize or midway) Oversized (also called jumbo)

How do you fix a gap between a wall plate and a switch?

For really large gaps: get extra deep rocker switch covers. stack a deep rocker cover on top of a 1/8″ gap ring and a 1/4″ gap ring.
25″ behind your cover plate are:

  1. add a deep gap filler ring under your old cover.
  2. get a deep plate and place a 1/8″ gap ring behind it.
  3. use a 6197 box extender under your plate (1-gang only)

How do you fix a gap in a light switch?





Remove the cover plate. If the gap between the electrical box and the drywall is less than 1/4 in., fill it with acrylic latex caulk. If the gap is bigger and lopsided, use foam sealant that’s formulated for use around doors and window framing. The minimally expanding foam won’t drip down your walls.

What is midway size wall plate?

Midway – Slightly larger on all sides to help cover wall imperfections. Often considered “standard’ in many parts of the country. Jumbo – Notably larger on all sides to help cover more significant wall imperfections.

What size should a wall plate be?

NHBC Standards 2020 (which are applicable to the UK) is roughly similar in stating that wall plates should be ‘38x100mm or in accordance with local practice. ‘

How big is an oversized outlet cover?

Choose from midway or oversized wallplates that are 5″ (tall plates) 5.06″ (midway covers), 5.5″ (oversized) 6.38″ (jumbo oversized), or 7.5″ (ultra oversized) tall in a variety of configurations.

Are wall plates Universal?



Decorator/Standard: Decorator style wall plates and devices are easy to spot, they consist of a single rectangular cutout per each gang. This wall plate type is the most universal, allowing you to install a number of different devices without needing to buy a new switch plate.

Are all wall plates same size?

There are three common wall plate sizes: standard, midsize/midway and jumbo. When selecting a size, the plate should completely cover the electrical box opening. If the opening is oversized, you may need a jumbo plate to conceal it. Measure the opening to figure out the exact minimum height and width for your plate.

Should you caulk around light switches?

Windows get the caulk treatment but for switches and sockets, just loosen off a tad, clean and paint, no caulk around them, they are fitted with screws as they need to removable.

Should you caulk around outlets?



In addition to caulking windows and doors, consider caulking the many exterior air outlets, external electrical outlets and exterior faucets. These are all prone to compromising the airtightness of your home. Some of the exterior elements of your home are likely to reduce its airtightness.

Can I use caulk around electrical outlets?

For wiring holes (e.g., security system wiring, television and internet cables, exterior outlets, and switches) use caulk, gaskets, spray foam, or other approved sealants to seal any gaps or holes.

Can you spray foam inside an electrical box?

Don’t Get Foam Inside the Box

Don’t let foam get inside the electrical box. It will harden around the box’s parts and cause major problems. Remember, the chemicals in spray foam are flammable. To stay safe, use a low-expanding foam and keep it away from wires or box parts.

Can you use spray foam around electrical wires?



While there may be debate between individual contractors about spraying foam insulation over electrical wires, industry guidelines state that spray foam insulation can be applied directly over electrical wiring.

Can you spray foam electrical boxes?

Never spray insulating foam inside an electrical box, as this can cause overheating of the wires.

Can Romex be covered by insulation?

Romex can be installed above or under the insulation. It is OK to touch the outer jacket with your bare hands provided the insulation is not damaged. A good rule of thumb when working with electricity is to wear insulated (rubber sole) shoes and to always keep one hand in your pocket.

Where should you not use expanding foam?

When NOT to Use Spray Foam Insulation

  1. For areas that are too close to electrical boxes:
  2. For areas too close to ceiling light boxes:
  3. Open-cell spray foam on your roof:
  4. For closed-cavity spaces:
  5. If you have a history of skin, respiratory, or asthma problems:


Can you put expanding foam around wires?

You have to consider if using foam is safe if you have anything routed inside the cavity, such as electrical wiring. So, if you were wondering whether expanding foam damages wiring the answer is yes. Expanding spray foam without carefully planning can damage electrical wiring.

Can expanding foam damage cables?

Polyurethane expanding foam has no detrimental effects on pvc cable.

Can you spray foam over water pipes?

Spray foam helps protect water pipes from cold temperatures. It is also water resistant which makes it ideal for use near water pipes. Insulate and air seal basement rim joists with spray foam insulation. This helps keep cold outside air from infiltrating the basement and away from pipes.