Northern Steel Decking

What Northern Steel Decking does

Northern Steel Decking Ltd is a UK-based specialist sub-contractor providing integrated supply, detailing, and installation services for composite steel floor decking systems. Founded in 2001 and headquartered in Dinnington, Sheffield, with a regional office in Johnstone, Scotland, and a registered address in Chepstow, Wales, the company serves the UK and Ireland construction market across commercial offices, multi-storey residential and student accommodation, stadiums and arenas, industrial and automotive facilities, airports, education, healthcare, public sector, and multi-storey car parks. The company is privately held, with the Fulton family represented in senior leadership alongside an experienced director team.

The core product offering centres on three MetFloor composite steel deck profiles — MetFloor 55 (dovetail re-entrant), MetFloor 60 (shallow trapezoidal), and MetFloor 80 (deep trapezoidal) — distributed nationwide on behalf of CMF MetFloor. These are complemented by four installation service lines: stud welding (straight-to-steel and thru-deck shear connectors), concreting (including the Fibredeck fibre-reinforced system), FASET-registered safety netting and fall arrest systems, and GRP riser void protection supplied in partnership with Dura Composites. Underlying technology is conventional construction engineering, with an in-house drawing office running CAD and TEKLA, design calculations via SCI-assessed MetFloor software, and bespoke curtain-sided delivery vehicles.

The business model is project-based, with revenue generated through one-time contracts for supply and installation of decking, stud welding, concreting, and safety systems. The estimating department processes 120+ new enquiries each month and converts these into 500+ projects annually, with values disclosed in case studies ranging from approximately £90k to over £1M. GTM is enterprise field sales targeting main contractors, developers, and construction firms; pricing is quote-based and project-specific with no public standard rate card. Customer concentration is low, with a fragmented mix across automotive, sports, commercial, government, healthcare, and infrastructure projects. The company differentiates through directly employed (not subcontracted), FASET-registered installation teams and an integrated one-stop-shop model that reduces trade interface complexity for main contractors.

Name

Northern Steel Decking

Legal name

Northern Steel Decking Ltd

Website

https://northernsteeldecking.co.uk

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

101–250 employees

Short description

Northern Steel Decking is a UK-based specialist sub-contractor providing supply, detailing, and installation of Metfloor composite steel decking systems, complemented by stud welding, concreting, safety netting, and GRP riser void protection, serving main contractors and developers across the UK and Ireland construction market.

Ownership category

akta.pro rank

Headquarters

HQ city

Sheffield

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Metal Decking Installation: Supply, detailing and installation of Metfloor metal decking systems. Services include in-house drawing office, technical support, and project-specific contract management.
2. Concreting Services: Supply and laying of reinforced concrete onto metal decking. Offers traditional mesh reinforcement and Fibredeck alternative. Lays over 150,000 m2 of concrete annually.
3. Stud Welding: Supply and installation of shear connectors including straight to steel and thru deck welding. Over 10 million shear connectors fixed in past decade. Also offers supply-only option.
4. Fall Arrest Systems: Safety netting and airbag systems for working at height. Provides collective protection with directly employed FASET registered riggers.
5. GRP Installation: Supply and installation of Dura GRP grating systems for riser void protection. Includes standalone grating and full Dura Riser System.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Northern Steel Decking is a specialist contractor and nationwide distributor for CMF MetFloor composite steel flooring systems, providing the supply, detailing and installation of metal decking (MetFloor 55, 60, 80 profiles) for suspended slab construction. Its integrated offering combines metal decking, edge shuttering, shear stud welding, FASET-registered safety netting/fall arrest, reinforced concrete topping (traditional mesh or Fibredeck fibre-reinforced), and Dura Composites' GRP riser void protection, delivered through directly employed teams and supported by an in-house CAD/TEKLA drawing office.

Product overview

Northern Steel Decking operates as a specialist contractor and nationwide distributor for CMF MetFloor composite steel flooring systems, offering a unified portfolio of products and installation services for suspended slab construction. The core product range comprises three MetFloor steel deck profiles — MetFloor 55 (dovetail re-entrant), MetFloor 60 (shallow trapezoidal), and MetFloor 80 (deep trapezoidal) — each available in multiple gauges and offering varying span capabilities and concrete efficiency. These are complemented by four specialist installation services: Stud Welding (shear connector fixing), Concreting (reinforced concrete slab pouring with traditional mesh or Fibredeck fibre-reinforced options), Fall Arrest (FASET-registered safety netting and airbags), and GRP Riser Void Protection (via Dura Composites' patented d2 system). An in-house drawing office and estimating department support the full project lifecycle from budget advice through to detailed CAD/Tekla drawings and SCI-assessed structural calculations.

Differentiator

Problem solved

Functional benefit

Products and services

• MetFloor 55 A traditional dovetail re-entrant composite floor deck profile providing an excellent mechanical key into the concrete slab with strong shear bond performance. Offers a virtually flat soffit, requires relatively thin slab for fire design, and allows easy service attachment via recessed grooves. Used by Northern Steel Decking as a core deck profile for composite suspended slab construction across UK and Ireland projects.
• MetFloor 60 A shallow trapezoidal composite floor deck with exceptional unpropped spanning capabilities and reduced concrete usage. The 60mm profile height delivers cost-effective, lightweight flooring with enhanced acoustic and fire performance. Can be manufactured with closed ends for improved fire protection and acoustic performance.
• MetFloor 80 A deeper trapezoidal composite floor deck with the greatest spanning capabilities of the MetFloor range, requiring less concrete than shallower profiles. The 80mm profile height enables exceptional unpropped spans, reducing structural steel requirements and costs while offering strong acoustic and fire performance.
• Metal Decking Installation Service A specialist contracting service for the supply, detailing and installation of CMF MetFloor composite metal decking, with over 5 million square metres installed in the past decade. Includes in-house drawing office using CAD and TEKLA software, design calculations to BS 5950 or Eurocodes using SCI-assessed MetFloor software, and delivery on bespoke curtain-sided vehicles. Offered to main contractors and developers across the UK and Ireland.
• Stud Welding Supply and installation of shear connectors using straight-to-steel and thru-deck stud welding methods. Northern Steel Decking has fixed over 10,000,000 shear connectors in the past decade, covering all of the UK with bespoke welding rigs designed for tight project locations. A supply-only option is also available for clients who self-install.
• Concreting Complete floor slab construction adding supply and laying of reinforced concrete onto metal decking. Lays over 150,000 m² of concrete per year. Offers both traditional standard mesh reinforcement and the Fibredeck composite floor system using Fibermesh micro-synthetic fibres and Novocon steel fibres for 3-dimensional fibre reinforced concrete that eliminates the need for mesh reinforcement lifting.
• Fall Arrest (Safety Netting) Fall arrest systems including safety netting and airbags, installed by FASET-registered directly employed teams. Safety nets comply with BS EN 1263-1, fitted closely to working level to prevent personnel injury and provide collective protection. Air bags provided for non-steel frame projects. Northern Steel Decking is a FASET registered safety netting company, undergoing annual audits for compliance.
• GRP Riser Void Protection Supply and installation of riser void protection using Dura Composites' patented d2 GRP (glass reinforced plastic) floor grating system. Class B fire-rated, 20mm Ball Fall Test compliant, Live Load tested, and up to 33% lighter than comparable products. Available as standalone GRP grating to cover existing voids, or the full Dura Riser System and framework compatible with Northern Steel Decking's metal section flooring.

Quantifiable outcome

• Over 5 million square metres of metal decking installed in past decade
• +4 more outcomes

Named customers15 records

Segments11 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Dura CompositescoreStrategic or Co-development PartnerNorthern Steel Decking works in partnership with Dura Composites to offer riser void protection using the Dura Riser System - a patented d2 GRP floor grating system. Dura Composites is a global supplier of composite products serving developers, architects, and contractors. The partnership provides GRP grating for covering existing voids or the full Dura Riser System and framework compatible with NSD's metal section flooring.
• CMF MetFloor (Composite Metal Flooring)coreTechnology or IntegrationNSD serves as a nationwide distribution network for MetFloor Decking Systems. MetFloor is a registered trademark of Composite Metal Flooring with over 30 years of experience. Products include MetFloor 55, 60, and 80 profiles available in various gauges. CMF provides SCI-assessed design software for structural calculations. Steel strip complies with BSEN10143 and BSEN10147 standards.
• SCI (Steel Construction Institute)minorStrategic or Co-development PartnerThe SCI manages fire tests and composite slab tests at Imperial College, London and Pavus in Czech Republic for CMF MetFloor products. NSD uses SCI-assessed Metfloor design software for deck/slab design calculations.

Scale indicators7 records

Recent moves9 records

Expansion highlights5 records

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key highlights6 records

Customer concentration

• Xx.com/nsdecking
• Facebookfacebook.com/NSDecking
• LinkedInlinkedin.com/company/nsdecking
• Instagraminstagram.com/NSDecking

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Northern Steel Decking