Shelf is being used along with the two matching corner shelves.  These three matching shelves set together looks great.  They endure rain without spotting or rusting.  They look as though they could possibly tilt, so we will child-proof them by attaching them together and using a clear line to affix to a beam.  (also earthquake-proof method for California).  They hold heavy plants, vases and decorative stones very nicely.  Highly recommend these shelves!!