In an old blog I found this hack:
The author comments that the base of this work station are fitted wall PAX white (2 and 1 50x35x70 100x35x70 mounted without socket) and 5 doors PAX BALLSTAD, but I’ve not found them on IKEA’s web. Is there a similar model? Thanks, hackers.
I don’t think the frames of the base are PAX wardrobes. Most likely the old FAKTUM/ AKURUM, if you take a closer look at the project photos here. The hinged doors could be PAX though. ~ Jules