When I first saw this and showed it to my wife it became number one on my Honey Dew list. I did not like the open space between the bottom shelf and top, saw on this site where someone put a wine rack of shorts as a second shelf. So I did the same I used 1x4 instead of the 1x10 used on bottom shelf. I also used 1x4 for the top to help eliminate the gaps between the boards that the 2x4’s would cause. To help give something for the 2x4’s and the 2x6’s to attach to I screwed 2x2’s to the 1x4’s around the edge. Gives the illusion of 2x4’s and makes for a very smooth and flat surface for the top.
I haven’t put on the Polyurethane yet due to Cold temps but will as soon as it warms up if that is ever going to happen