There are two ways to go about covering a heating duct. The first option is to box out the heating duct using sheetrock or drywall. The second option is to use the CeilingMAX to box out the heating duct. To do this you will need to build a frame around the heating duct using 1×3’s. Then you can use the CeilingMAX to finish it off. Wall brackets will be installed around the perimeter of each side of the duct. The wall brackets on the bottom of the duct will be screwed into the wall brackets on the vertical sides of the duct. You can use cross tees between the tiles on the vertical sides of the duct and top hangers and runners on the bottom side of the duct. See diagram below: