Overview
ISO 24204:2025 - Oil and gas industries including lower carbon energy - Bulk material for offshore projects - Design for architectural supports - specifies unified design requirements for architectural supports used in topside and living‑quarter regions of fixed and floating offshore platforms. The standard covers shape, dimensions, materials, strength, connection details and application guidance for supports used with lining panels, partition panels, coaming plates, technical liners and equipment mounted on wall panels. Its aim is to improve compatibility, reduce delivery time and enhance fabrication, maintainability and integrity across offshore projects.
Key topics and technical requirements
- Scope and definitions: Clear definitions for architectural support types (lining panel, partition panel, wall panel, technical liner, coaming plate, equipment support, etc.).
- Supported types: Lining panel support, partition panel support, coaming plate, technical liner support, equipment supports on wall panels.
- Shape and dimensional specs: Minimum size examples are provided (e.g., 25 × 25 × 3 mm equal angle; 25 × 40 × 25 × 1.6 mm channel). Vibration‑absorber installations may use 40 × 40 × 5 mm equal angle with slot holes.
- Connection and welding: Architectural fillet welding details are specified; fillet weld leg minimum 2 mm and minimum weld length 10 mm. Channels require tack welding appropriate to web thickness.
- Material guidance: Architectural supports should conform to common construction steel specifications; carbon steel is generally recommended. Welding electrodes and procedures must be compatible and client‑approved.
- Performance limits: The standard addresses maximum support length, maximum pitch and application of double pads for different support types (lining, partition, technical liner), and includes rules for support heights and pitch.
- Quality control: Annex A provides a Quality Control Plan (QCP) outline to support consistent manufacturing and inspection.
Practical applications and users
ISO 24204:2025 is intended for:
- Offshore owners and operators specifying topside and accommodation fit‑out
- Design engineers and naval architects developing topside architectural systems
- Fabricators, shipbuilders and contractors manufacturing and installing wall and lining supports
- Project QA/QC teams and inspectors validating welds, dimensions and material conformity
- Asset integrity and maintenance planners aligning on maintainability and replacement
Benefits: improved interchangeability of architectural supports across projects, reduced engineering and fabrication variability, and clearer rules for welding, materials and installation.
Related standards and notes
- ISO 24204:2025 contains no normative references; implementers should coordinate with project‑specific structural, welding and material codes and the outputs of ISO/TC 67 (oil, gas and lower carbon energy).
- For procurement and compliance, reference project contracts and client‑approved welding procedures and QCPs when applying this standard.
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