This owner knew exactly what he wanted: a garage door 7' high in just three sections. Our preference is to break such a door into 4 sections, for smoother operation. This is our only three section in 7' high out there. Five years later, door is still operating satisfactorily. This job eventually lead to more work for this owner. In order to achieve the higher R value, a second layer of foam was added to the door. The photo above shows the three section overhead door with a custom curved window section.