The undisputed workhorse of retail signage. We fabricate heavy-duty, illuminated cabinet signs engineered for maximum brightness and decades of durability.
Custom Light Box Signs
The light box—or cabinet sign—is the foundation of commercial signage. It provides massive, illuminated square footage at an efficient cost. But cheap light boxes leak light, rust, and blow out. SignForge builds industrial-grade light boxes. We weld heavy-wall aluminum extrusions, paint the interiors with highly reflective white enamel for maximum light bounce, and pack them with premium LED modules. The result is a brilliantly illuminated, weather-tight cabinet that dominates the retail strip.
Fabrication
How we build it.
Five disciplines under one roof — engineered metalwork, digital precision, and hand craftsmanship.
01
Structural Metal Fabrication
Heavy-gauge steel and aluminum are cut, welded, and reinforced in-house to engineered specs. Every frame is built to withstand decades of wind load, seismic movement, and coastal weather.
02
Precision CNC Machining
Automated multi-axis CNC routers carve intricate 3D profiles from thick wood, PVC, and composite stock with sub-millimeter accuracy. The result is repeatable, dimensional detail that hand tooling can't match.
03
Advanced Laser Cutting
High-powered lasers slice acrylic and plastic with flame-polished, ready-to-finish edges, and cut thin metals to tight tolerances. Every letter, logo, and inlay assembles cleanly the first time.
04
Large-Format Digital Printing
Commercial-grade flatbed and roll printers produce vivid, UV-stable graphics on substrates up to monument scale. Inks and laminates are rated for years of outdoor exposure without fading or peeling.
05
Artisan Hand-Finishing
Master craftsmen complete every piece by hand — custom color matching, fine detail painting, and meticulous finishing. It's the final layer that separates a manufactured sign from a signature one.
Materials
What's inside.
- Commercial-Grade LEDs
- Translucent Acrylic Faces
- Extruded Aluminum Cabinets
- UL-Listed Wiring
FAQ
Common questions.
- Can you convert my old fluorescent light box to LED?
- Yes. We offer LED retrofit services. We strip out the old, failing ballasts and tubes, clean the cabinet, and install a modern, high-efficiency LED array.
- What if someone throws a rock at my sign?
- For high-vandalism areas, we recommend using Polycarbonate (Lexan) faces rather than standard Acrylic. Polycarbonate is virtually unbreakable.
- Can a light box be custom-shaped?
- Absolutely. While rectangles are standard, we can roll and weld the aluminum extrusions to create circles, ovals, or custom contour-cut cabinets.
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Need custom light box signs?
Quotes returned within 24 hours. Designed, built, and installed across Southern California.
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