When you add the Curved Wall, you must make sure that its length and the radius of the curve match to the existing Walls you have built.
To add the Curved Wall:
- Click the Curved Wallshape and drag it so onto the drawing page and use the Shape Date popup to make the following changes:
- Length = 17 ft
- Radius = -8.5037 ft.

- Glue the Curved Wall to the outside edges of the upper Walls.

You are now ready to add the slab.