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Thread: ADA height for receptacles and switches

  1. #1
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    ADA height for receptacles and switches

    ADA says 15" min for receptacles. This would mean 18" from finish floor to the top of the outlet box. I recommend that we all measure 19" to the top from the sub-floor. This allows for hardwood floor installation.
    For switches, ADA says 48" max. I recommend 42" to the top of the box in order to avoid the drywallers filling the box with mud.
    Any comments or suggestions?

  2. #2
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    Go for it.
    "Electricity is really just organized lightning." George Carlin


    Derék

  3. #3
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    Quote Originally Posted by mlnk View Post
    ADA says 15" min for receptacles. This would mean 18" from finish floor to the top of the outlet box. I recommend that we all measure 19" to the top from the sub-floor. This allows for hardwood floor installation.
    For switches, ADA says 48" max. I recommend 42" to the top of the box in order to avoid the drywallers filling the box with mud.
    Any comments or suggestions?
    Why are you recommending the height that you like. Most plans have the heights specified. Personally I like 19" to the bottom for recep. because my stick rule opens to that height and I can mount the box right on top. As for switches I like 43 to the bottom for the same reason. In residence I use 13" to the bottom for receptacles & 43 to the bottom for switches. That is pretty standard around here.

  4. #4
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    Why not go 16" to the bottom of the box and be ADA compliant? Of course i am recommending what I like, but it is also ADA compliant...

  5. #5
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    Quote Originally Posted by mlnk View Post
    ADA says 15" min for receptacles. This would mean 18" from finish floor to the top of the outlet box. I recommend that we all measure 19" to the top from the sub-floor. This allows for hardwood floor installation.
    For switches, ADA says 48" max. I recommend 42" to the top of the box in order to avoid the drywallers filling the box with mud.
    Any comments or suggestions?
    Yes...measuring from the center of boxes AFF is usually done to avoid misaligned box levels, especially in tile. Reason: Not all manufacturer box envelopes are the same. A metal foursquare with mudring and single gang plastic are different as is a cut-in box. The ADA is project specified. Setting wall switch heights at 42" is standard above a 32" bath lav counter, in a kitchen 42" will not usually work with a 36 inch cabinet plus counter height. The floor and custom counter thickness will almost always be a negative clearance with the wall plate.
    rbj, Seattle...Safety is a Professional Courtesy.

  6. #6
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    Excellent point about measuring box heights O.C. ...... Of course kitchens heights vary. Also, Where customer has not decided about backsplash/tile, i like to use the adjustable set out boxes..a great invention.

  7. #7
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    Quote Originally Posted by mlnk View Post
    i like to use the adjustable set out boxes..a great invention.
    I would like to see a link to these. Not sure I know what they are and Google didn't help today.
    Dale

  8. #8
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    Quote Originally Posted by gndrod View Post
    Setting wall switch heights at 42" is standard above a 32" bath lav counter, in a kitchen 42" will not usually work with a 36 inch cabinet plus counter height. The floor and custom counter thickness will almost always be a negative clearance with the wall plate.
    I've never had a problem setting kitchen countertop receptacles at 42". The houses I've done have 36" counter heights and a 4" backsplash.
    Tom

    " And all the science I don't understand, it's just my job five days a week "

  9. #9
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    Quote Originally Posted by dhalleron View Post
    I would like to see a link to these. Not sure I know what they are and Google didn't help today.
    Carlon makes both single and two gang adjustable boxes. Very handy for a variety of situations.
    Tom

    " And all the science I don't understand, it's just my job five days a week "

  10. #10
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    Duh. I guess I missread post #6. I thought the box somehow adjusted up and down for the the backsplash height off the counter. I wondered how that was going to work.
    Dale

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