It was easy for even one person to assemble if you did it on the floor and pushed it against a wall as needed. Two people made it even easier, of course. The instructions didn’t tell you to make sure all the little screw holes in the center support were facing all the same direction when assembling, so I ended up with some screws showing on both sides of the trellis, rather than all showing on just one side. The screws had white heads, so I didn’t care...it wasn’t like they stood out. We didn’t secure the trellis to a wall, but we installed long, wooden posts to the base of the trellis and dug deep holes for the poles. We are hoping this will be enough to keep the trellis upright during a windy storm. Very pleased with quality and appearance.