Equipment or materials with extended procurement timelines, often weeks or months. Subcontractors must account for these delays when scheduling mobilisation and submitting project timelines. Late delivery can stall field work and trigger costly standby charges.
Long Lead Materials
Related Terms
Spar Platform
IndustryA floating offshore structure anchored by a deep vertical cylinder, used in deepwater oil and gas production. Subcontractors access it by crew boat or helicopter for maintenance, inspection, and equipment services. Mobilisation costs and offshore scheduling are key considerations when bidding work on spars.
Header System
IndustryA network of pipes that collects flow from multiple wells or lines into a single outlet point. Subcontractors often tie into or maintain header systems during facility hookups and commissioning work. Knowing the configuration is critical for safe isolation and pressure management on site.
BIM (Building Information Modelling)
IndustryA shared 3D digital model of a construction project that contains structural, mechanical, and site data. Subcontractors use it to coordinate work sequences, avoid clashes with other trades, and verify installation specs before mobilising. Access to the BIM model is often required before entering a worksite.
Best-Value Scoring
IndustryA bid evaluation method where contractors are ranked on price plus non-price factors like safety record, experience, and equipment. Low bid alone does not win the work. Subcontractors must demonstrate overall capability, not just competitive rates.
Marine Foundation
IndustryA structural base system that anchors offshore platforms, wind turbines, or subsea equipment to the seabed. Subcontractors may support installation, inspection, or repair work on pile-driven, gravity-based, or suction caisson foundations. Scope can include diving services, grouting, and non-destructive testing.
Cable-Stayed
IndustryA bridge or structure supported by cables running directly from towers to the deck. Subcontractors working on these structures face specialised rigging, inspection, and access challenges. Confirm tower and cable access requirements before mobilising crew and equipment.
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