A Projected Double-Sided Staircase Sign with a wall-fixing aluminium frame is an effective and durable wayfinding solution for multi-floor buildings like hospitals, office buildings, malls, and public spaces. These signs provide clear directional guidance, increase visibility from multiple angles, and help ensure safety during emergencies. Whether for regular navigation or in the event of an evacuation, projected staircase signs help individuals find stairwells easily, ensuring they can safely move between floors or exit the building when needed.