Overview
ISO 24203:2025 - Oil and gas industries including lower carbon energy - Bulk material for offshore projects - Schedule for architectural doors defines a unified door schedule format and item definitions for architectural doors used on offshore projects. Applicable to topsides and living quarters of fixed and floating offshore oil and gas (and lower carbon energy) installations, this first-edition standard aims to harmonize door specification practices across projects to reduce variations, shorten delivery time and streamline engineering, procurement and construction.
Key Topics
The standard addresses technical and documentation elements that belong in a consistent architectural door schedule, including:
- General identification: tag numbers, room/area numbers, room names and drawing references.
- Design requirements: clear opening and wall cut-out dimensions, coaming height, opening operation, frame fixing, door open direction, and mass of the total door assembly.
- Performance attributes: fire rating, blast overpressure, weathertight and gastight properties.
- Materials & finishes: leaf and frame materials, finish methods and door colour specification.
- Thresholds & ventilation: threshold type and height, ventilation requirements for specific room types.
- Accessories: vision panels, automatic closers, hold-open functions, doorstops, panic bars, kick/trolley protection plates, flush bolts, magnetic holders, ramps and other fittings.
- Locking & pneumatic systems: lock types (e.g., cylinder mortise latch, indication mortise latch), padlock provisions, key sides, pneumatic key switches, emergency air cylinders and handle operations.
- Other data: noise rating, accessory definitions and standard templates for cabin, galley, CCR, workshop, battery/UPS rooms and other typical spaces.
Applications
ISO 24203:2025 is primarily used to:
- Create standardized architectural door schedules for offshore topsides and accommodation modules.
- Define procurement specifications and vendor submittals for doors and hardware.
- Support consistent engineering interfaces between architects, structural and mechanical disciplines.
- Improve compliance checks during construction, commissioning and handover stages.
- Reduce bespoke project variations when integrating doors across multiple platforms or vessels.
Who should use it
- Offshore architects and design engineers
- Procurement teams and spec writers
- Door and hardware manufacturers and fabricators for offshore use
- Construction contractors and installation teams
- Classification societies, HSE and project quality managers
Related standards (guidance)
ISO 24203:2025 was prepared by ISO/TC 67. Users should also consult applicable ISO and industry standards for fire testing, structural interfaces and offshore installation design to ensure full compliance with functional and safety requirements.
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