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Engineered Steel Building Systems
Firth Steels has established itself as a leader in the design and manufacture of high-performance steel roof, wall, and structural systems. Based in Yorkshire, we combine innovation with decades of expertise to produce world-class steel profiles engineered to outperform and last, backed by a 25-year guarantee. Our commitment to sustainability is evident in our product development, including low-carbon solutions like SSAB Pural BT Zero, which reduces embodied carbon by over 65%. We serve global markets, delivering tailored solutions for complex projects ranging from logistics hubs to iconic architectural landmarks.

Our technical proficiency is demonstrated through advanced fire-rated systems, acoustic innovations, and integration with renewable energy technologies. With a focus on customer-centric service, we provide comprehensive technical support and rapid delivery options, including 48-hour express shipping for critical components. Our track record includes supplying structural flooring for The Shard, Terminal 5 Heathrow, and Siemens' train manufacturing facility, underscoring our position as a trusted partner for demanding projects worldwide.
Services
Roof Systems Wall Systems Structural Floor Decking Gutter Systems Trench Sheet Fire Safety Solutions Building Registration Support Technical Library Access Custom Steel Profiles International Distribution
Highlights and features
  • 25-year guarantee on all steel systems
  • Pioneers in low-carbon steel solutions
  • Technical expertise in complex fire-rated systems
  • Global supply with 48-hour UK express delivery
  • Proven track record with iconic international projects
Services
Structural Floor Decking
Our R51+, TR60+, and TR80+ steel decking profiles provide engineered solutions for composite floor construction. These systems optimise load-bearing capacity while reducing material usage and installation time. With fire ratings up to 2 hours and acoustic performance certifications, they meet stringent building regulations while enabling cost-effective construction across commercial and industrial sectors.
Roof Systems
The Protex PRX-RS range offers advanced built-up roof systems with integrated fire safety features. Available in multiple profiles, these systems combine weatherproofing performance with compatibility for solar panel installations. The patented trough stiffening design ensures precise shear stud placement while maintaining structural integrity under extreme conditions.
Wall Systems
Our PRX-WS wall systems provide thermally efficient, fire-rated solutions for both internal and external applications. Featuring compatibility with multiple coating technologies including Greencoat Pural BT Zero, these systems offer A1 non-combustible classifications while maintaining architectural flexibility through various profile and finish options.
Gutter Systems
Gutterex valley gutters are manufactured from 1.6mm structural galvanised steel in lengths from 1-15m. The joggled joint system ensures watertight connections while the express 48-hour delivery service supports critical path construction schedules. Available with integrated fixing packs and sealant solutions for complete installation packages.
Fire Safety Solutions
Approved fire-rated systems include comprehensive documentation for compliance with UK and international building codes. Our technical team provides fire strategy support, with tested solutions achieving up to 120-minute integrity ratings. Systems incorporate non-combustible materials and intumescent treatments where required.
Questions
What steel coating options are available?
We offer Mission XP40, Greencoat Pural BT, HDX, and F200 Plastisol coatings with various colour options. SSAB Pural BT Zero is available for low-carbon requirements.
Can you supply custom profile dimensions?
Our roll-forming capabilities allow for made-to-order profiles with thicknesses from 0.7mm to 1.2mm in S350 and S450 steel grades.
Do you provide technical support for installation?
Yes, our technical library includes standard details, fire certifications, and DWG/BIM files. Sales engineers are available for project-specific guidance.
What is the lead time for orders?
Standard delivery is 5 days, with express 48-hour options available for Gutterex products and urgent requirements.
Are your products compliant with building regulations?
All systems meet UK Building Regulations and are supported by environmental product declarations and fire safety certifications.
Can your systems integrate with renewable energy?
Our roof systems are designed to accommodate photovoltaic installations with structural reinforcement for solar panel mounting.