Sign Cabinets & Light Boxes

Sign cabinets and light boxes place a large illuminated graphic inside an enclosed aluminum cabinet. The construction is straightforward, but the result depends on cabinet depth, face material, interior reflectivity, and LED spacing. We lay out the modules to produce even light across the face without obvious hot spots or dark areas.

Face options include acrylic, polycarbonate, flexible sign material, routed aluminum, and push-through graphics. Cabinets can be single- or double-faced, wall-mounted, projecting, freestanding, or built into a larger sign structure. Hinged or removable retainers provide access for electrical service and face replacement. Common uses include storefront identification, directories, menu boards, tenant signs, and commercial displays.

SEG Light Box

Our fabric-face LED light boxes are available with two professional graphic-retention systems:

• SEG (Silicone Edge Graphic): A silicone strip is sewn around the fabric graphic and inserted into a narrow channel in the aluminum frame. This stretches the fabric evenly and creates a clean, nearly frameless appearance. SEG is commonly used for indoor retail, corporate, hospitality, and exhibition applications.
• Slide-In/Clamping Gasket Rail: The fabric face is secured around the perimeter using a flexible gasket inserted into a clamping rail. This system provides strong, adjustable tension and is well suited for large-format light boxes, sign cabinets, and selected outdoor applications.

Both systems use high-resolution printed fabric faces and energy-efficient LEDs for bright, uniform illumination without visible hot spots. Graphics can be removed and replaced when advertising or branding changes. Light boxes are available in custom sizes and single-sided, double-sided, wall-mounted, suspended, or freestanding configurations. See our full SEG vs. clamp profile comparison for a detailed breakdown.

Sign Cabinets & Light Boxes FAQ

SEG or clamping gasket rail — which fabric-face system should I choose?

SEG is generally preferred for indoor retail, corporate, and exhibition applications requiring a clean, frameless look. Clamping gasket rail provides stronger adjustable tension, better suited to large-format light boxes and selected outdoor applications. See our full comparison for details.

Can sign cabinets be double-sided?

Yes. Cabinets are available in single- or double-faced configurations, wall-mounted, projecting, or freestanding.