How to Choose a Sliding Glass Wall for Your Home? Crystalia SGL-1116 Sliding Wall SGL-1116 is a frameless sliding glass system by Crystalia Glass. It connects the indoors with the outdoors, combining comfort and unobstructed views. The lowest bottom track gives this system its most significant advantage over similar sliding systems. Our customer did a fair amount of research before choosing in favor of our SGL-1116 wall, and the low bottom track turned out to be a decisive factor. Her main goal was to make the space usable during colder and unfavorable weather like dust storms. SGL-1116 also allowed our customer not to sacrifice the views to create extra living space. This sliding glass wall turned out to be the winning combo for our customer: low profile, frameless, and adequately insulated.