Ikea DOMSJÖ only for 3.8 cm countertops

domsjö drop-in sink and HAMMARP countertop 2.8cm

I am desperate about choosing the countertop, according to Ikea only 3.8 cm slabs fit, the Ikea employee said the in-house installers also said that it doesn’t fit.

I myself am of the opinion that it should actually work, that’s how it looks in the showroom anyway.
The sink just slides 1 cm further down, and there should be that much clearance.
It’s also said not to fit with the induction cooktop because there is supposedly too little clearance underneath.

If the countertop prices were not so different, I would of course immediately take the 3.8 cm.

But we need a total of 5 meters on both sides, so that’s with HAMMARP 2 x 129 € for solid oak.
The 3.8 cm is supposed to cost 160 € per meter.

Has anyone installed the combo 2.8 cm and drop-in sink? Or does it actually cause problems?

Just because of the installation instructions for the induction hob, you should take the 3.8 cm plate (warranty etc.). The additional cost is offset by the usually quite long service life - if money is really tight, you might have to come to terms with an oak thick-layer veneered Karlby ...

Just found out that if the oven is not below the induction hob, the installation regulations specify at least 28mm. We have the oven elsewhere, so we are already safe there. Karlby is the alternative, but it looks different from real wood. So the only problem left is with the sink.