In this video I will show you how to make octagon shaped tray ceiling. First, create the octagon shaped wall. Change the wall height to the height of your tray ceiling. I want my tray ceiling to be one foot deep, so I will make my wall height 12 inches. I’m changing the size to all eight sides of the wall. Now that I have the sides of the tray ceiling created, I’m going to fill in the top of the ceiling. I’m going to use “Create 3D shape tool” to create a triangle. Change the size of the triangle. Texture the triangle and export to OBJ. Import the triangle as new furniture, be sure to change the orientation of the triangle before importing. Place the triangle in all four corners or the tray ceiling. Now that the corners are covered, I will create another wall to cover the flat square area in the middle of the tray ceiling. I’m going to texture, export as OBJ, and import as furniture. I will repeat the same process to cover the two narrower spots on the ceiling. The ceiling is all covered, now it’s time to create the trim piece that will go all the way around the tray ceiling. Once the trim piece is done, texture it, and export. Import the trim as new furniture. Place the newly created trim all around the tray ceiling. By default, wall corners in Sweet Home 3d are 90 degrees. I want my tray ceiling to have rounded edges. I’m going to make a round pipe object, export it and import as furniture. I’m going to place the round pipe all around the edges of the tray ceiling to make it look like the rounded drywall edge. Octagon shaped tray ceiling is done, all that’s left is to export it as OBJ and import as new furniture. While importing be sure to turn it the right way up. Place the new tray ceiling in the room, Now, I’m going to fill in the ceiling gaps next to the tray ceiling. I’m going to use the same ceiling pieces I used on the inside of the tray ceiling. I hope you found my video useful. If you have an idea for the future video please leave a comment below.