Nana Wall Systems' SL72 Aluminum Framed Folding Glass Wall now meets the Miami Dade County Building Code for both inswing and outswing applications for all 52 stacking configurations. Custom opening sizes up to 36 ft. wide with up to 12 panels are possible. A variety of powdercoated and anodized finishes are available. The SL72 is a complete system with prefitted hardware. Smooth sliding and folding operation is assured with ball-bearing rollers and with compensation and adjustment features.