This is very nice trellis.  I ordered four last summer to make a screen to hide something in an adjoining 
yard.  When I finished the project, it looked like a professional job because I followed all directions, and was very
careful with leveling and alignment.  It does take some time to assemble the trellis and to attach the metal
anchors, but the results are very satisfactory.  I anchored mine in gravel rock in holes that were 17 inches deep.
I also wedged the trellis legs very tightly.  They were all super solid when I finished and never budged during
the cold icy winter.  

                                                                                                                   JBS