A device that includes pier caps. Each pier cap is configured to couple to a pole that is at least partially embedded below a surface of a ground. The device further includes threaded rods coupled with the pier caps. The device further includes an assembly frame that includes a base plate and coupling arms. The base plate includes a first plurality of openings that are configured to interface with a structure that is installed onto the base plate. The first plurality of openings are configured to allow a position of the structure to be adjusted radially about the base plate. Each coupling arm includes a second plurality of openings that are configured to allow a position of the assembly frame to be adjusted along a horizontal plane. Each coupling arm is coupled to a threaded rod and a position for each coupling arm is adjustable vertically along the threaded rod.