Established in 2004, Ryan Structural Steel is an Irish Company specialising in commercial structural steel, detailing fabrication and erecting everything from commercial warehouses to simple hand rails. We combine cutting edge expertise, vast experience and high quality workmanship to deliver exceptional solutions to major projects nationwide. CRO number 389691.


  • Complete range of structural steel services including detailing, fabricating and erecting.
  • Suppliers and fitters of roof and wall cladding including gutters, flashings etc.
  • Suppliers and fitters of roof and floor decking. Everything from CF 51 - Deep deck 225, including edge trim, openings etc. Shear studs as required.
  • Providers of CE Marked Structural Steel.
  • Insured to 13 million for EL and 6.5 million for PL.
  • Full traceability provided for all products. DoP's, Data Sheets, Mill Certificates etc.
  • We provide Safety, Risk and Method Statements for all our projects.
  • Our detailing department offers full GA's and 3D solid models for approval and follow on trades.
  • We can offer third party connection design.
  • We directly employ a highly experienced erecting crew, certified in MEWPs, Manual Handling, Abrasive Wheels, Banksman, Forklift and Teleporter Tickets.
  • We can include for all lifting and access in our quotes.

We have a full STRUCAD detailing system and a highly experienced detailer who has worked for Fishers, Leonards, NTG Engineering, O'Dwyers, WMH and others. We undertake detailing as a stand alone service. For example we have been involved in the following projects : Quinn Cement Redevelopment - Collins Barracks - The Malt Tower, Dublin. - A.I.B. Bank, Santry, Dublin. - Smartply Tower, Waterford, Athlone Community College and most recently the Human Biology Building NUIG

StruCad is a 3D structural steel detailing and information management software, with rapid automatic fabrication shop drawing and CNC production delivery.

Struwalker is a 3D viewing software, which allows the user to rotate, zoom in and out and fully inspect a model. Please watch the below demonstration video of St. Brendans College, Belmullet.

Click the link below to download the viewer software to interact with some of our 3D models.



Once you have downloaded Struwalker to view a model download the individual bsw file which you can find attached to each contract on our projects page.

Tips for using STRUWALKER:

  • To rotate - hold down left button and move the mouse.
  • Zoom in and out - scroll up or down on the mouse.
  • To enquire about an item - hover the cursor over the item, right-click and press enquire command. Information such as size, grade, mark number and paint finishes available.

Building Ireland Magazine


















Ryan Structural Steel Services Ltd. specialises in commercial structural steel detailing, fabricating and erecting, combining cutting-edge expertise, vast experience and high quality workmanship to deliver exceptional solutions to major projects nationwide. We travelled to the company’s state-of-the-art detailing facility in Westport, County Mayo and caught up with founder / MD Des Ryan to find out more about this outstanding operation.

Since its inception in 2004, Ryan Structural Steel Services Ltd. has developed into one of Ireland’s premier commercial structural steel specialists, providing unrivalled detailing, fabrication and erecting solutions to a vast range of commercial and industrial projects for a Who’s Who of clients throughout Ireland and the UK. Based in County Mayo, the company runs its own sophisticated detailing department, working on STRUCAD machines and drawing out the individual elements that go into fabricating raw steel, as well as supplying their own steel erecting crew to work on site. CE-certified structural steel (BS EN 1090-2 and Execution class 2) is used on all projects and Ryan Structural Steel Services Ltd. has an unblemished track record in delivering projects on time, within budget and to exact specification. This is why demand for their services continues to soar and the future is looking extremely bright for the company.

“Our business model seems to work and we are happy to continue with it,” notes founder Des Ryan. “We have enjoyed growth and weathered the downturn because of the way we have structured our business. We don’t have huge overheads or machinery sitting idle, so when the downturn came we were able to just turn off the computers and wait it out. When things started to pick up again, ourselves and Regans Structural Steel were on it first, having secured the CE-mark, and we have been extremely busy ever since.” All fabricating is carried out in partnership with the aforementioned Michael Regan of Regans Structural Steel in Strokestown, County Roscommon, while Ryan Structural Steel Services Ltd. focus on detailing and erecting, each of which can also be offered as standalone services. Over the past twelve years, Ryan Structural Steel Services Ltd. has offered it expertise in steel detailing and erection to the full spectrum of developments including schools, hospitals, hotels, community centres, shopping centres etc.

Completed projects include Silverbridge Shopping Centre in Claremorris, and the Connacht Gold Superstores in Westport and Sligo as well as OPW work at Scoil Naisiunta Uachtar Ard, Scoil Phádraig Westport, Scoil Bhríde Primary School in Edenderry, St Brendan’s in Belmullet and Athlone Community College. They are also experts in floor /roof decking, delivering many major projects including 1,600 square metres of flooring at Roscommon County Hospital, where they also did all the steelwork and steel detailing when the building was given a new extension in 2014.

Ryan Structural Steel Services Ltd. worked on the engineering block at NUIG, where they also did all the steelwork on the new Life Course Studies Building and the detailing and erecting on the Human Biology Building. Other healthcare projects completed to the highest standards include Mayo Medical Academy, St Anne’s Special School in Merlin Park, Galway, a 75-bed extension to the maternity wing at University Hospital Galway (including 4,500 metres squared of deep decking flooring) and Primary Care Centres in Castlebar and Blanchardstown, while commercial structural steel solutions were also provided recently for the OPW on projects such as Pearse’s Cottage Interpretive Centre in Ros Muc, Galway, Roscommon County Council offices, Solas Galway Picture Palace and community centres across Mayo and Galway.

Over the years, Ryan Structural Steel Services Ltd. have worked alongside all the leading main contractors in Ireland including Purcell Construction, BAM Ireland, Careys, JJ Rhatigan, etc. and newer firms like Kesel Construction and Monami Construction in Galway. Some of the most high-profile non-OPW projects that Ryan Structural Steel was engaged on of late include all steel and decking on a seven-storey extension to the North Star Hotel on Amiens Street, a bridge at Turnberry Golf Course in Scotland and the supply of 21 crane ties for HTC WOLFFKRAN in London. They are also about to do some steelwork for Douglas & Stewart Builders at the world-famous Ardfin House on the Isle of Jura, Scotland.

“All the detailing is done here in our state-of-the-art new office, which was built at the start of the year. Regans then fabricate the steel and our lads bring it to the site and erect it,” Des notes. “We try not to overstretch ourselves and we tend to pick and choose the projects we get involved in. At the moment, we’re also doing Bloomfield Avenue apartments in Dublin for Edward Holdings as well as luxury houses in Clifden and Achill.

“We’ll keep going as we are and hopefully get bigger,” the Mayo man concludes. “The new offices have allowed us to take on extra staff, including a new detailer and a couple of steel erectors, and we also intend to increase our management capabilities to facilitate the continued growth of the business.

“We have a good team of very experienced people here and we prioritise quality over quantity. As such, we tend to get a lot of repeat customers and our aim is to keep them.”