Shorten plastic base?

Hello everyone,

is it possible to shorten the baseboards (plastic) lengthwise without destroying them?

Reason: I have to align my U-shaped kitchen to a windowsill so that the 3cm stone still fits underneath. However, on the LEFT side, the floor rises a bit, so instead of 8cm clearance to the floor, I only have 7cm. But then the baseboards no longer fit...

I was planning to cut them lengthwise with a stop and circular saw. Has anyone had experience with this?

Thank you very much

I have already discussed with several people whether the baseboard can be shortened in length. Most say no. There is a concern that it is very likely to splinter when sawing (it is plastic).

However, I could also imagine that it might be cut with a decent saw blade and caution (nice and slow). Unfortunately, I don't know anyone who has tried it yet. But I think there will definitely be some who have.

I wanted to shorten it because I often used the baseboards as fitting strips in Faktum kitchens, which unfortunately is no longer so simple now.

Trying is better than studying. How is it not supposed to splinter if you shorten the covers in length, but then in width?