UNSPSC 31331100: Bonded structural assemblies

UNSPSC 31331100 Bonded structural assemblies, a Class code, encompasses the procurement of fabricated structural steel components — W-beams, H-piles, and I-beams — that state and local governments buy for infrastructure repair, bridge construction, and facility upgrades. The work involves supply of mill-certified structural shapes with specifications for grade, weight per linear foot, and length, delivered ready for installation. County and state departments are the primary issuing bodies under this code; recent activity centers on South Carolina counties and the Illinois state government purchasing bonded structural components through sealed-bid Invitations for Bids where price typically dominates evaluation at 99 percent, responsiveness at 1 percent, and delivery to a specified location on an F.O.B. destination basis is mandatory.

Greenville County, South Carolina has posted multiple recent opportunities under this code. In September 2026, Greenville County issued IFB 27014 seeking sealed bids for 24 H-piles (12 each at 12 inches by 53 pounds per linear foot and 30 feet in length, and 12 each at the same cross-section and 40 feet in length) with bids due September 3, 2026, requiring FDOT prequalification for traffic signal work, a Performance and Payment Bond equal to total contract price, and $1 million per occurrence comprehensive general liability insurance. In October 2026, the County posted IFB 27022 for 12 W-beams (four beams at 27 inches by 114 pounds per foot and eight at 27 inches by 94 pounds per foot, all 27 feet in length) with bids due October 9, 2026, delivered to the Bridge Yard at 98 Camp Road, Travelers Rest, South Carolina. The State of Illinois Department of Agriculture issued a smaller Basic Ordering Agreement in April 2026 for eight 4-inch by 7.7-pound by 15-foot I-beams and two 4-foot by 8-foot metal plates valued at $3,900 total, with a three-day response window and delivery within 30 days of order. South Carolina and Illinois are the primary active jurisdictions; markup on pass-through allowances is prohibited, and bidders routinely must provide three references documenting similar work and maintain prevailing-wage compliance where applicable.