Build for Sale Modules

Over the years we have designed and built thousands of modular cabins to meet customers individual specifications, for almost every conceivable offshore activity

In the process, we have developed valuable areas of product specialisation – for example, pressurised cabins, local equipment rooms, extreme environment cabins and modules to house a variety of customers equipment from ROV controls to variable speed drives for critical offshore topside and subsea operations.

Our engineering team and designers have a clear operational understanding of size and weight constraints imposed by operations on brownfield and greenfield installations offshore, and are able to produce design solutions from lightweight cabins, to larger integrated cabins and combinations of modular assemblies to suit any project challange.

Cabins can also be designed to stack up to three units high on floating installations and four high on fixed installations where deck space is at a premium. We have built up a strong international reputation for drawing on all our experience to meet even the most challenging delivery schedules.

Service Cabins


Whether your project requires a simple technician workshop or a fully-integrated FPSO VSD Module, our design engineers work from a thorough understanding of our customers’ operational requirements. All OEG cabins are designed to optimise work-space efficiency, meet environmental and acoustic requirements, and house our customers’ personnel or specialist equipment in complete safety.

We manufacture all our cabins to the highest industry standards (EN12079, DNV 2.7-1, DNV 2.7-2, DNV 2.7-3, BS EN 60079 and ATEX), including compliance with SOLAS/IMO regulatory requirements for A60 fire protection as standard.

State-of-the-art safety monitoring systems are incorporated, including an integrated fire and gas, pressurisation and emergency shutdown system suitable for Zone 1 applications.

Our experienced discipline technicians can integrate data communication networks, fire suppression, air conditioning and other systems to ensure rapid mobilisation and easy hook-up.


Specialised modules





Most standard cabins are 4, 6 or 10m units, but our designers have extensive experience in designing bespoke units and producing larger cabins up to 200 tonnes in split-module formats designed for easy on-site integration.

Our extensive experience in fitting-out specialised modules enables us to integrate and test many different types of customer-supplied systems and equipment prior to the modules being mobilised saving valuable time offshore during installation and hook up to the host installation.

As a standard procedure all our units are supplied with a comprehensive data dossier comprising as-built drawings, material certificates, an operation and maintenance book, an installation and hook-up procedure and OEM data on the installed products. We also have your databook available online to make it convenient for access from any computer where ever you are located.

 Specialised modules OEG HAS designed and manufactured include:

ROV control and workshop cabins Local equipment rooms
Variable speed drive modules Switchgear modules
Analyser modules Gymnasia/Saunas
Drillers’ control cabins MLWD cabins
Freezer units Offices
Laboratories Document stores
VSD Modules Tranformer rooms
Overnight shelters Technician cabins 
 Racker Cabins Control rooms 
Radio shacks Recreation rooms
Workshops/spares cabins Paint stores
Leak-test cabins Coffee/tea shacks
Dive control cabins Telecoms
Temporary refuge modules Wireline control cabins
Safe area cabins  Zoned cabins 
Well Plug & Abandonment Cabins Decommissioning Modules
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