Plain Light Cove Dome - DM9905-42https://www.crownmoldings.net/media/ecom/prodsm/covedomeinstalledplain-sm.jpgClassic Ceilings Collection Plain Light Cove Dome (DM9905-42) -- Dome Dimensions: Dome Outside Diameter: 42 in., Dome Rough Opening: 36-1/2 in., Dome Opening Depth: 6-1/4 in., Dome Rim Width: 2-3/8 in., Dome Medallion Size: 10 in.Classic-Ceilings-Collection-Plain-Light-Cove-Dome-DM9905-420.00Classic Ceilingsin stockhttps://www.crownmoldings.net/Item/Classic-Ceilings-Collection-Plain-Light-Cove-Dome-DM9905-42
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 10 feet of flexible millwork trim)