New answers tagged ventilation
This entirely depends on the refrigerator and where the coils and fans are. Older refrigerators were cooled with fins on the back, and depended on convection (heat rising). The heat of the coils would draw air through the lower grille, up the back, and over the top. A modern unit might do all it's cooling with a fan pushing heat out at the front bottom ...
You need to consult the manufacturer instructions. That is the only place to get accurate info for things such as clearances, etc. In my experience, if this is a typical residential refer, 1" on top is pretty small. The sides do not need any clearance at all. Some units need no clearance at all. I mean like Sub-Zero, etc.
Lacking much detail in the question, I'd suggest making sure the area under the deck all slopes away from the building (if it's attached to a building) or to the outside of the deck if it's freestanding, or to catch-basins and drains if neither of those can be managed. This will be lots of fun if there's only 18" to crawl around in and it wasn't done in ...
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