Commercial kitchens range in size from industrial bakeries larger than football pitches to tiny pub kitchens. The ovens come in all sizes.

Yes, but that doesn't mean they'll actually fit in a standard residential kitchen space.

In the US, kitchens normally have a very standardized space for the stove/oven. It's a particular width (I don't know it offhand), and if it's outfitted for electric, it has a standardized 240V outlet. You can't just put anything there: it has to be the correct width and height, and have the correct power cord. There are fancier kitchens with separate ovens and ranges, but you can't just put those units into an existing kitchen; you'd have to redo all the cabinetry, which is very expensive.

Also, commercial kitchens generally use gas ovens/ranges. Not all residences have this available, in fact many just don't. If your area doesn't have natgas, then you have to have propane installed, and that's expensive to do, and may not be allowed where you live.

These things are extremely easy to reconfigure, and no cabinetry is not very expensive. Even utilising just standard residential ovens, they come in 600, 750, and 900 widths, and a variety of heights. There are plenty of commercial electric ovens available, I assure you.

>These things are extremely easy to reconfigure, and no cabinetry is not very expensive.

Bullshit. It's a lot more expensive than any residential stove, mainly because of the labor costs.

>Even utilising just standard residential ovens, they come in 600, 750, and 900 widths

Those don't sound like widths in inches, so that doesn't apply here in the US.

Simply not true; the average oven installed these days costs more than all the cabinetry combined... cabinetry is cheap and easy to reconfigure.

The first result in Google for 'ovens US' even has it in their blurb...

>...find single and double ovens, gas and electric ovens, 24", 27" and 30" ovens, speedcook and convection ovens...

So yes, it does apply, even in the US of A.