ᐅ Which notched trowel should be used for parquet adhesive?

Hello everyone,
I am currently considering installing parquet flooring myself, and since I have underfloor heating, I would like to glue it down. Unfortunately, I am having trouble choosing the right notched trowel and would appreciate any advice. My oak parquet (2-layer) measures 190x2200x14 mm (7.5x87x0.55 inches).

I used the B11 notched trowel. It has the same width and thickness.

Thank you for the quick response. I had also been considering the B11 but wasn't entirely sure.

Surely the supplier of the parquet will be able to give a recommendation. I just went with what the supplier advised 🙂

Actually, it doesn’t really matter. B11 is definitely suitable!

I would have also said B11 or B12.