Can two 3-seater Ikea Karlstad sofas be connected to form a long 6-seater sofa?

Or 2x the 2-seater into one long 4-seater!?

Does anyone have any idea if that is possible?

I can't make sense of the instructions/product info (PDF from Ikea.de) of the series. #

Thanks!!!

As I see it in the instructions, it is basically possible, but there are two problems. 1. The threaded rods might be too short to connect the two sofas in the middle. Suitable screws could be obtained. 2. The bigger problem. The legs are attached to the side parts. In the middle, additional supports or the legs of the remaining side parts would have to be installed. To what extent this is feasible cannot be seen in the drawings and depends on your craftsmanship skills.

... yes, the feet are, I think, the biggest problem. The corner sofa doesn't help in this regard either, as the side parts are "hooked in" there.

As you already said, you could connect the two sofas with the screws (or with longer ones) and then you would have to attach a "connecting board" and/or brackets under the sofas to which you could screw the legs.