super cool shelf!! do you remember the name?? could you please share?? i have been searching for it and can't find it.

Check out the Orrberg at Ikea. I believe the shelf was named something else when I used it, but this seems to be similar.

It appears to be the a modified Kallax 1x4 tower unit, without the three middle shelves. It appears the headers/footers were also cut in half to create uniformity in thickness both in the sides and the center posts, as well as to slim down the unit considerably for a more improved profile. The old slimmer shelves were probably used as backing to square up this new cabinet, offer support for the frame, and hide the wall mounting brackets. I would guess that in order to hide the cuts, the new raw edges were placed between the longer boards while their finished edges were trimmed off and reused to edgeband the now exposed particle board ends of the long boards. And finally a pair of short wide heavy duty angle brackets underneath would complete the installation and make it attached well enough to the wall to support someone who thoughtlessly tried to sit on it. It's quite an efficient and clean, minimalist styled Ikea hack. A lot of extra work to transform it, but very nicely done.