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85" to the center of the receptacle if it's a cabinet mount. If it's a shelf mount, hang the wire out wall and tell the cabinet guy to bring it out in the right spot. Install a 4x4 with a industrial raised cover and you're done.
 

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85" to the center of the receptacle if it's a cabinet mount. If it's a shelf mount, hang the wire out wall and tell the cabinet guy to bring it out in the right spot. Install a 4x4 with a industrial raised cover and you're done.
85" is too high you could end up halfway in the cabinet. 76" to center is usually about where you want to be. Although that is not what op was asking. Usually on a shelf mount there would be room behind the microwave.
 

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I'd never do a 4x4 with an ind cover inside a cabinet you'd see easily, or behind an appliance. You may very well need that 2-3" of space.
Whether it's an OTR or shelf unit I leave a whip and cut it right into the back of the cabinet after.
 

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I have always seen this done with a regular old box mounted to the stud, then the drywall goes on and when the cabinet guy arrives he will cut out the back of the cabinet for the receptacle. Then we would put a box extension, receptacle and coverplate. Leaving a whip and sticking a surface mount box in would be too visible and not allow the microwave to be pushed all the way back.

For OTRs we would do the same thing but inside the cabinet above the microwave and run a dedicated 15A circuit for it, or the occasional surface-mount utility box inside the cabinet.
 

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How can you set a height like 85" without knowing the cabinet size? Sure that would work for 42" wall cabinets but lots of kitchens get 30" wall cabinets which puts the top of the cabinet lineup at 84" AFF, 85" would put you half out the cabinet. 76-78" to center puts you inside of any cabinet whether it is a 3012, 3015,3018 or 3024 you're going to be in it.

For a shelf mount a whip or just put in a flush box if you know where the mfg specs it. For a true built in with a trim kit we leave a whip and do a surface mount if room, and there's always room.
 

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You are crazy.



32" cabinet on a 4" toe kick with 18" in between and an 18" microwave and a cabinet above .....you better talk to somebody who just started wiring houses. I'm not her.
And you're not someone who asks for drawings. There is no standard height for a microwave oven. I have even seen them in lower cabinets. If it's on a shelf, who knows without drawings?
 

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Estwing magic
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How can you set a height like 85" without knowing the cabinet size? Sure that would work for 42" wall cabinets but lots of kitchens get 30" wall cabinets which puts the top of the cabinet lineup at 84" AFF, 85" would put you half out the cabinet. 76-78" to center puts you inside of any cabinet whether it is a 3012, 3015,3018 or 3024 you're going to be in it.

For a shelf mount a whip or just put in a flush box if you know where the mfg specs it. For a true built in with a trim kit we leave a whip and do a surface mount if room, and there's always room.
Those are the rules we play by. If there's a device box or JB behind a cabinet, it gets cut out by the cabinet guy. We only jigsaw cabinets for island and peninsula receptacles.

The only time we have surface mounted microwave receptacles is on rental properties where the owner doesn't care about esthetics.

Sorry, quoted the wrong guy but you get the idea...
 
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