How to Build Flat Roofs with Parapets in SketchUp

By Aidan Chopra

Good news — SketchUp was practically made for modeling these kinds of roofs. By using a combination of the Offset tool and Push/Pull, you can make a parapet in less than a minute. Modeling parapets on flat-roofed buildings is easy. Follow these steps:

  1. With the Offset tool, click the top face of your building.

  2. Click again somewhere inside the same face to create another face.

  3. Type the thickness of your parapet and then press Enter.

    This redraws your offset edges to be a precise distance from the edges of your original face. How thick should your parapet be? It all depends on your building, but most parapets are between 6 and 12 inches thick.

  4. Push/pull your outside face (the one around the perimeter of your roof) into a parapet.

  5. Type the height of your parapet and then press Enter.