This striking 18.3m x 9m five-bedroom steel frame home was manufactured by Shanette Steel Frames for a private client in Donegal. Spanning 270m², the project showcases how modern steel frame construction can deliver outstanding thermal performance alongside contemporary, liveable design.
The external walls were constructed using System 1 of our wall build-up options, a hybrid steel frame system incorporating PIR insulation with a masonry outer leaf. This approach combines the structural precision of light gauge steel with the familiarity and durability of traditional blockwork, making it a popular choice for one-off homes across Ireland.
To achieve excellent energy efficiency, the wall build-up includes 90mm PIR insulation with 100mm Rockwool infill panels, delivering a U-value of 0.15 W/(m²K). This level of performance supports reduced energy costs, improved comfort, and long-term sustainability.
Key Features
The house features a cassette floor system forming the first-floor platform, ensuring accuracy, speed, and a high-quality finish. Instead of traditional roof trusses, cassette roof panels were used, creating bright, open upstairs spaces while maintaining structural strength and thermal integrity.
- 90mm PIR insulation with 100mm Rockwool infill panels
- 0.15 W/(m²K) for superior warmth retention and reduced energy costs
- Cassette floor system for first-floor platform
- Innovative cassette roof panels replacing traditional trusses, creating bright, open spaces upstairs.
The Result
Manufactured in our Irish facility and erected on-site by our six-man crew in just five days, the steel frame structure allowed the project to progress quickly and efficiently, reducing time on site and minimising exposure to weather delays.
The finished result is a modern, energy-efficient family home that demonstrates how steel frame construction can successfully balance technical performance with everyday comfort, flexibility, and architectural appeal.
- Date: February 5, 2026