I remember reading your post about finding hives in open structures. I’ve been called out to similar hives myself. The bees never get a chance to store much honey, as you can imagine, they consume it as fast as they produce it just to keep the brood at the optimum temp.
I’m sure that slatted racks work. I’ve never felt the need to go to the trouble of making one. I’m happy with the performance of how my hives are set up. I like the KISS method & I think my hives fall into that category.
I just thought I’d pass on my thoughts earlier because people were talking about star pickets & shade cloth etc.
cheers