# Form and Massing

### **Building Perimeter**

The building perimeter you enter. If you don't provide a value, C.Scale assumes the building is an extruded square.

### **Floor-to-Floor Height**

The vertical distance between building floors in feet. The default value is 13’.

### Window-to-Wall Ratio (WWR)

The ratio of windows to total wall area. The default value is .45.