Drip Nose Cill
A deep cill with a rounded front and a groove under the nose that stops water creeping back to the wall.
Cill sections 3D models
Parametric 3D models you can customize in the browser and download as GLB, STL or OBJ.
Sloped Cill
A cill whose top falls toward the front so rain runs off the unit.
Flat Cill
A level cill with a short lip under the front edge that carries water away from the wall.