Trex Commercial Products re-engineered two of its popular railing systems—Equinox and Monaco—to offer more customizable features. The Equinox Railing system features unique stainless-steel rod-and-disc assemblies, which attach through the glass panels. Applications include educational and health care settings, say officials, as the system maximizes natural light. The Monaco system uses sleek stainless-steel clamps to mount the glass infill, for a barely-there appearance.