Set measurements for the kitchen

That depends on you and what YOU need in a kitchen

well, if you want the perfect kitchen for yourself, it definitely makes sense to engage with the entire planning of the kitchen. and why not plan the kitchen now? you’re not supposed to buy it right away ;) since you think/ thought that 60 cm cabinets are standard, I generally assume that you have very little idea what options there are for a kitchen nowadays (which is a lot). 60 cm cabinets are no longer simply standard :) even Ikea has more to offer, and I can only recommend largely saying goodbye to the 60 cm size when it comes to regular base cabinets. more optimal are rather 80-100 cm, anything above that is rather impractical again. also important for the size of the kitchen space is to be clear about which row distances should be maintained and which working height is needed. because the room size depends on this when an island, G or U shape is planned, and the working height is very important for the windowsill height of all windows planned in the worktop area. under no circumstances should the windowsill height be below the working height, and then you have to consider whether you want the worktop to run into the window reveal or if you want a light strip, etc.

but I can plan the E and S connections a bit later, right?

Planning later, yes, if it is still possible then. In this respect, I do think it makes sense to determine early on where water and electricity should go.

Accordingly, it seems practical to me to raise the planned dimension to 360 x 360 so that exactly 6 elements fit side by side.

That no longer works, for example, if you plan with corner cabinets, but if you plan a single row, it can make sense to plan with wider base cabinets, e.g. 4 x 90 cm = 3.60 m plus panel and plaster, instead of 6 x 60 cm plus panel and plaster. In total, 4 90 cm base cabinets are also cheaper than 6 60 cm base cabinets, and you gain storage space.

The OP is primarily concerned with the finer points of floor plan design - whether it makes sense to move the wall by 10 or 29 cm.

I would also suggest taking some time in the evening to simply sketch out possibilities on graph paper. If you have no idea, an Ikea furniture catalog or even the Ikea planner can help. I myself oriented at least to the 60 cm template as a rough measurement. 180 cm can also be useful, as it covers 90, 60, and 30 cm. However, I would advise against using every possible measurement in a kitchen, as that can make it look very cluttered.

If it can be a little better with the planner, Nobilia offers a bit more (for example).

We planned it exactly like that... the kitchen width is 4.30 meters and therefore seven 60 cm base cabinets fit nicely and evenly. The buffer for us is 10 cm.. I hope that’s enough... Best regards Steffi.