Structural Engineering Design Services

Utilising experience gained from an impressive range of backgrounds, ENG-CAD provide a wide range of structural engineering design services ranging from simple design studies through to full conceptual design analysis and verified calculation stage, right up to production of fabrication drawings, onsite dimensional control and full as-built survey facilities.


  • Production of full engineering calculations report
  • Designed to AISC, API, DNV GL, ABS, BS EN/ Eurocodes, NORSOK, Lloyds standards and guidance documents.
  • Structural appraisal and feasibility studies
  • Transportation and lifting design and studies
  • Material and corrosion design
  • Development of GA and detailed engineering and fabrication drawings
  • Structural design undertaken within ISO 9001 quality management system

Sector Experience

  • Oil and Gas
  • Petrochemical
  • Renewables
  • Naval Architecture \ Floating Production
  • Nuclear Power
  • Industrial & Commercial Buildings


  • Onshore and offshore structural inspections
  • Asset Integrity Inspections
  • Installation engineering
  • Decommissioning engineering
  • 3rd party review/verification


  • Full structural model analysis using STAAD.Pro
  • Local component analysis using FEM software, ANSYS
  • Fatigue and fracture analysis, ECA – Engineering critical Assessment

Design Experience

ENG-CAD has extensive experience in all aspects of structural engineering design. Here is an overview:

  • Topside/brownfield modification and strengthening and repair
  • Offshore certified containerised cargo and lifting frames
  • Lifting appliances, cranes and overboard deployment survey systems
  • Retrofit structures on FPSO vessels, ships and mobile drilling units
  • Access and pipe bridges
  • Seafastenings & vessel support grillages
  • Bumpers, guides & impact protection
  • Blast resistant structures
  • Runway, lifting beams, padeyes and lifting tools
  • Lifting davit and cranes
  • Vessel and pipe supports
  • Flare boom structures
  • Offshore low-pressure tanks
  • Deck Hatches
  • Cable drums
  • Jacket attachments / clamps
  • Subsea templates
  • Subsea survey lifting frames
  • Portal Framed structures

Contact Engineering Services:

Tel: 01493 600400
Int: +44 1493 600400

ENG-CAD Engineering Services Brochure

Structural Design Service Case Studies:

Containerised Cargo Lifting Frames

Containerised Cargo Lifting Frames

Client Case Study: ENG-CAD has extensive experience designing and detailing a wide range of containers, baskets and lifting frames certified for offshore lifting purposes.

read more
FPSO Turret & Gantry Project

FPSO Turret & Gantry Project

Client Case Study: ENG-CAD were responsible for the conceptual and detailed design of all of the Process and Utility pipework starting from the riser terminations on the geo-stationary side, terminating at the main pipe rack tie-ins situated on the vessel main deck (rotating side).

read more
Offshore Access / Interface Bridge

Offshore Access / Interface Bridge

Client Case Study: ENG-CAD have been involved in offshore access bridges in many different capacities, whether it be modifying an existing bridge, providing structural analysis for re-certification of an existing bridge or to design, detail and fabricate a new one.

read more
CPT Frames

CPT Frames

Client Case Study: ENG-CAD have designed and detailed a range of CPT seabed frames/units for sub-sea surveys, services provided, included full detailed fabrication drawing and engineering calculations.

read more
Racking Board

Racking Board

Client Case Study: ENG-CAD’s scope of work was to provide a dimensional survey of the existing mast & racking board, followed by structural design calculations & fabrication drawings for the new racking board.

read more
High Level Walkways & Stair Tower

High Level Walkways & Stair Tower

Client Case Study: ENG-CAD initialy provided a feasibility study and subsequently full design calculations and fabrication drawings for a new access walkway and stair tower at the Bacton Gas Terminal.

read more