Plain Light Cove Dome - DM9905-67https://www.crownmoldings.net/media/ecom/prodsm/covedomeinstalledplain-sm.jpgClassic Ceilings Collection Plain Light Cove Dome (DM9905-67) -- Dome Dimensions: Dome Outside Diameter: 67 in., Dome Rough Opening: 60-3/4 in., Dome Opening Depth: 11-3/4 in., Dome Rim Width: 3-1/8 in., Dome Medallion Size: 14 in.Classic-Ceilings-Collection-Plain-Light-Cove-Dome-DM9905-670.00Classic Ceilingsin stockhttps://www.crownmoldings.net/Item/Classic-Ceilings-Collection-Plain-Light-Cove-Dome-DM9905-67
Smooth plain cove surface can be left as is for a clean contemporary look or a decorative millwork trim can be added for a unique one of a kind appearance (would require 17 feet of flexible millwork trim)