I'm building a corner pantry where I'm currently going to install shelves. I want, if possible, to put up shelves without having brackets underneath that can be in the way. It will be a corner where one shelf rests on supports at both short ends, and I plan for the adjoining shelf to rest on the aforementioned shelf. Is there any type of holder for the shelf that I could use that wedges one shelf against another? An alternative I see is to attach a flat iron underneath, but then all the weight is on the screws, which I assume is not good.
Has anyone done something similar and has a solution?
If I had built the pantry myself, I probably would have made it simple for myself and just installed shelves on each long side and fastened them to the short sides, much like you already did. Then every other shelf, which admittedly leads to lower height in the corner.
The next idea if you want shelves that go over the corner, but avoid brackets, is to use flat steel as you're thinking, but router it in at a 45-degree angle. That way, nothing protrudes downward, while the outer edges of the flat steel rest on your pieces screwed into the wall.
It doesn't really need to be routered in either, since they don't add much, but I think flat steel is quite ugly when everything else is wood.