Hexagon or honeycomb shelves have become very popular in the DIY world recently. The reason for this is that they are interestingly designed, different from the norm and incredibly easy to build. You can push out six of these in an afternoon and not break a sweat! We used 2×4 red oak lumber because we like its depth and thickness once it’s finished and mounted, but you can use any size you want. Red oak is a very hard wood and can be difficult to deal with, but with some patience, it works just as well as any other species. This build involves gluing end grains together, which is an untrusted method of joinery for some, but it will work just fine for this build as these shelves aren't meant to hold heavy items. If you want to shore up your shelves, use some dowel pins or biscuits to make the joints as solid as possible.