PMH24-24-BC Height 55" x 23" Wide This beautiful Purple Martin House is constructed of PVC Board with bright copper roof and copper finial.  Copper is finished with exterior lacquer to maintain its copper color finish.  The roof is removable for cleaning nest box areas.  Should be mounted with 6"x6" wood post.  6" vinyl sleeve available as separate purchase.  Mounting brackets are adjustable for post width. This birdhouse has 24 separate compartments and holes. 1 7/8" diameter holes.