At first, I thought I could use the ÄPPLARÖ trolley to fit … but it had wheels which I didn’t want and the top wasn’t long enough (just 80 cm). I would have had to place 2 of them side by side, which couldn’t be done with wheels getting in the way.
Instead I bought 2 low benches which are 44 cm high and 114 cm long. Perfect.
I built the first as instructed. On the second one, I just moved to the back the center bar holding the legs together. (The bar is normally placed in the middle of the legs bar. In my picture, you can see where the original holes are inside the right side leg bar).
I had to re-drill the holes on the back legs, of course. In this way I could use the lower bench countertop to store things.
Then, before placing the hacked upper bench on the lower one I cut the upper bench rubber feet to perfectly match the lower countertop.
And then, secured the upper part to the lower countertop by placing “L” brackets in the inner side of the legs. Very simple.
To refine my hack I’m planning to cut a rectangular hole in the countertop (which is now at 87 cm height) and place a TROFAST storage box so it can serve as a built-in potting soil container.