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Sign Boxes

Bridge and infrastructure guardrails are robust barrier systems designed to enhance safety on bridges, highways, overpasses, and other critical infrastructure. Made from high-strength steel, stainless steel, or aluminum, these guardrails provide vehicle containment, pedestrian protection, and structural reinforcement against impact forces. Engineered to meet stringent DOT, AASHTO, and FHWA standards, they help prevent vehicles from veering off elevated roadways while ensuring durability in harsh environmental conditions. Available in designs such as W-beam, thrie-beam, and crash-rated barriers, bridge and infrastructure guardrails are essential for improving roadway safety, traffic management, and long-term structural integrity.

Sign Boxes

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Illuminated Sign Boxes

lluminated Sign Boxes are lighted enclosures that display custom signs, providing high visibility with LED or other lighting, perfect for storefronts and outdoor advertising.

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Non-Illuminated Sign Boxes

Non-Illuminated Sign Boxes are enclosed structures that display custom signs without lighting, offering a sleek, professional appearance for businesses, indoors or outdoors.

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Double-Sided Sign Boxes

Double-Sided Sign Boxes feature signs on both sides, offering visibility from multiple angles and making them ideal for high-traffic areas like streets or malls.

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Custom Shape Sign Boxes

Custom Shape Sign Boxes are uniquely designed sign enclosures made to fit specific shapes or branding requirements, offering a personalized and eye-catching display for businesses.

Let's Work Together

sales@sd-ind.com
212-348-8000

Corporate Office

250 Pehle Ave, Suite 200, Saddle Brook, NJ 07663

Factory

213 Porter Road Conroe, TX 77301

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© 2025 SD Industries LLC.

All Rights Reserved.

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