UNSPSC 30103500: Honeycomb core

UNSPSC 30103500 Honeycomb core is a Class code that encompasses structural composite materials and cellular core products used in construction and infrastructure projects. Based on recent state and local solicitations, the code captures materials specified for bridge decks, structural assemblies, and building components where lightweight, high-strength core materials support composite or sandwich-panel construction. State and local governments solicit honeycomb core and related structural products through capital delivery departments, county engineering offices, and municipal public works divisions pursuing large infrastructure projects funded by bond programs and capital improvement budgets. The issuing bodies are typically mid-to-large municipalities and county governments managing multi-million-dollar construction programs.

Recent activity appears concentrated in Texas and Florida. Sarasota County posted an IFB (Solicitation 262861MN) on July 29, 2026 for the Midnight Pass Road Pedestrian Bridge, a steel truss construction project due July 27, 2026, which specifies steel deck components and structural elements that may incorporate honeycomb core materials in composite sections. The City of San Antonio Capital Delivery Department has posted two competitive sealed proposal solicitations: RFCSP2026025 for Hays Street Bridge Connections & Eastside Area Streets (due August 25, 2026), covering linear creek greenway and roadway improvements with structural and concrete beam specifications, and RFCSP2026071 for Fire Station #33 Facility Replacement (due July 30, 2026), a new facility construction with structural shapes and general building components. Both San Antonio projects are funded through the 2022 Bond program. These opportunities signal steady demand for structural materials in bridge, roadway, and facility construction, though the source does not isolate honeycomb core as an explicitly listed line item in any single project scope.