Floors, bridges, stairways and more all made of glass. That is Glass Walk. The heart of every GlassWalk structural glass floor system is the modular IBP aluminum frame: strong, lightweight, easy to install, and proven in hundreds of floor applications. For most installations, IBP supplies two-ply laminated glass units: a top layer tempered for impact resistance and a heat-strengthened bottom layer, bonded with a clear resin interlayer.