Minimum Walking Space for Kitchens
From contributor B:
In my area, it's a minimum of 36" with 42" preferred. Home inspectors should be looking at that, too, usually citing ADA or fire marshal recommendations.
From contributor D:
I try to get 42, but keep 36 as a minimum. That is from counter overhang to counter overhang, not cabinet to cabinet. I am working with a couple right now that is considering going with a smaller opening and they are rural, so no inspector will come into play, but I will have them sign a document releasing me from any liability in the future due to the design.
From contributor E:
Just make sure there is room to get the appliances like the refrigerator where it needs to go.
From contributor K:
It's interesting to see how the standards evolve over the years. Years ago, it used to be 28", then 30", then 32", then 36" (which I agree with the others to use as a minimum), and now it is 42".
Justification for width used to be the average door opening sizes of the home (consistent comfort zone), but over the years other factors have taken hold to affect the minimums (i.e. wheelchair access, larger kitchens, oversized appliances, etc.).
Personally, I like the 36", as you can turn from top to top with the swivel of a hip, but with the 42-48", you have to turn and step. But on the other hand, with the 42-48", you can stand in front of the open oven or dishwasher, as opposed to the side, or have two people work comfortably in the kitchen, which is more common nowadays. The wider the isle got, the more chance for kitchen accidents (cords across the aisle), and the need for the outlet in the island was born, and then became code.
I also agree with others that you should check local code. But 30" is fine if code is acceptable and clients know that they will have to unload from the side. Just be sure to have them sign something. You could also put the dishwasher in the island. They would have to run a separate water and drain line, but it would be worth the extra couple hundred bucks. In the below example, we put it where it would be easy to load/unload either the dishwasher or oven, giving them a 3' x 3' area to work with.
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