Very interesting and most importantly practical shelf made in three tiers. For those who are in the joy of joinery, doing this is not a problem. The design is made in a semicircle, that is, specially under the wall, which means it will take up less space.
For manufacturing, you can use only carpentry glue, although you can fix each rail with a self-tapping screw. But the design is so reliable, because it is made in the form of a pyramid. Only a lot of wooden slats will be needed, they must be made in advance. They give the shelf an openwork and light look.
You can use it for flowers or just as a shelf, depending on where it stands, it will probably look best on the porch of the summer residence.