In order to provide more options on our top-selling 1555 double-hung windows, MI Windows and Doors will introduce continuous head and sill (CHS) sizes beginning Monday, Dec. 30.
The primary benefit of a CHS unit is the continuous frame eliminates the need for factory mulls and drip caps. This change is in line with MI’s long-term plan to offer more CHS units and less factory-mulled units.
Our new size offering will be:

Available configurations are XX (twin) and XXX (triple). The 1555 Picture Window is not available with CHS.
*Window widths do not need to be equal within a CHS as long as each individual window width does not exceed the specified CHS individual maximum.