Large Window Design

Horizontal Mulls were NOT needed here. These conditions can be tricky and usually "not in the software" or "technically" the way the product was tested but with an engineer's letter and alternate installation planning you can have smaller sightlines matching vertically and horizontally.

This installation method is how almost every window company does it because it's the easy way. It takes a deep understanding of what is possible and the myriad ways these systems can be designed and installed to deliver the best looking window design.