The phrase "grape arbors" refers to structures made of wooden or metal frames that are built to support grapevines. These arbors provide a place for grapevines to grow and produce fruit. Full definition
One of the things I loved about the property when we purchased our home was the mature huge grape arbor. (diyshowoff.com)
We always tell each other that the deer are on the ridges today or in the swamps or clustered in the grape arbors or frittering away the morning behind the woodpile despite the fact that few of us could identify five trees at gunpoint. (si.com)