An L-Shape Floating Mirror Frame is a sleek, modern framing design where the moulding forms a distinct 90-degree "L" cross-section to support the mirror entirely from behind. Unlike traditional frames that overlap the front edge of the mirror with a lip, the L-profile mounts the glass directly onto its flat horizontal base, allowing the outer vertical wall to extend upward along the perimeter. By sizing the inner frame slightly larger than the mirror, it creates an intentional 5mm to 10mm shadow gap (reveal) around the entire perimeter. This gap gives the visual illusion that the mirror is floating suspended inside the frame without touching the edges. Beyond its clean, minimalist aesthetic, this design preserves 100% of the mirror's reflective surface since no glass is covered by a border. The mirror is typically glued to a rigid MDF or plywood backing board, which is then securely fastened to the horizontal ledge of the L-frame using countersunk screws from the back. This provides exceptional structural support for heavy glass while the outer vertical walls act as a protective barrier against side impacts. When paired with polished or bevelled mirror edges, light reflects subtle highlights into the inner frame channel, adding dramatic architectural depth to the space.