# CR Steel > UK structural steel supplier, fabricator and erector — universal beams, columns, parallel flange channels, hollow sections, angles, flats and bespoke fabricated steelwork. BS EN 1090-1:2009+A1:2011 Execution Class 3, BS EN 1090-2:2018, ISO 9001:2015, BS EN 9606-1 coded welders. Designed, fabricated and erected nationwide. CR Steel supplies and fabricates structural steel for commercial construction, residential development, industrial buildings, data centres, transport infrastructure (rail / highways), energy and utilities (DNO, ICP, IDNO substation steelwork, transformer bunds, gantries), agriculture, retail and leisure, healthcare, education and the public sector. Services span engineering and CAD detailing, BS EN 1090 EXC 3 fabrication, BS EN 9606-1 coded welding, hot-dip galvanising, priming, UK-wide delivery and on-site erection. Every order ships with a complete certification pack: CE / UKCA Declaration of Performance, EN 10204 3.1 mill certificates, weld procedure records and Inspection & Test Plan. ## Structural Steel Catalogue - [Structural Steel Catalogue](/structural-steel): Browse the full UK catalogue — beams, columns, hollow sections, angles, channels and flat bars. Cut to length, drilled and CE / UKCA marked. - [Universal Beams (UB / RSJ)](/universal-beam): Primary structural beams for floors, lintels, transfer beams and portal frames in S275 / S355. - [Universal Columns (UC)](/universal-column): Vertical load-bearing columns, stub columns and posts in S275 / S355. - [Parallel Flange Channels (PFC)](/channel-pfc): Trimmers, edge beams, stair stringers and lintels — cut to length and drilled. - [Square Hollow Sections (SHS)](/square-hollow): Posts, trusses, balustrade frames and architectural metalwork. - [Rectangular Hollow Sections (RHS)](/rectangular-hollow): Goalpost frames, gantries, plant supports and architectural framing. - [Circular Hollow Sections (CHS)](/circular-hollow): Columns, bracing, handrails and architectural tubular steelwork. - [Equal Angles (EA)](/equal-angle): Bracing, cleats, edge protection and architectural detailing in mild steel. - [Unequal Angles (UEA)](/unequal-angle): Support brackets, framing, lintels and bespoke fabrication. - [Flat Bars and Flitch Plates](/flat-bars-flitch): Mild steel flats, packers, splice plates and timber-steel composite flitch beams. - [Pre-Fabricated Steel Assemblies](/pre-fabricated-steel): Twinned beams, welded top-and-bottom plate assemblies and made-to-order fabrications. - [Live UK Steel Prices](/structural-steel-price): Indicative kg / metre rates for the UK structural steel catalogue. ## Beam and Section Data (per page) Each individual section page at `/structural-steel/{slug}` carries the section name (e.g. "203 x 102 x 23 UB"), section type, primary category, depth, width, flange and web thicknesses, root and toe radii, outside diameter (hollows), weight per metre (kg/m), area of section (cm²), approximate metres per tonne, surface area per metre and per tonne, steel grade (typically S275 / S355 to BS EN 10025), available stock lengths, SKU, fabrication notes and reference images, plus internal links to the parent category, calculator and quote forms. Product, BreadcrumbList and FAQPage JSON-LD is emitted per page. ## Services - [Structural Steel Frames](/structural-steel-frames): Design, manufacture and erection of structural steel buildings. - [Metal Fabrication](/metal-fabrication): Workshop fabrication of secondary steel, frames, stairs, mezzanines, plant decks and bespoke assemblies. - [Sheet Metal Fabrication](/sheet-metal-fabrication): CNC sheet metal cutting, forming, welding and assembly. - [Architectural Fabrications](/architectural-fabrications): Feature staircases, balconies, balustrades and architectural metalwork. - [Custom Metal Framework](/custom-metal-framework): Bespoke steel frameworks to drawing or sketch. - [Stairs & Fire Escapes](/stairs-and-fire-escapes): External stairs, fire escapes and walkways. - [Coded Welding Services](/coded-welding-services): BS EN 9606-1 coded MIG / TIG / MMA welding, workshop and site. - [Computer Aided Design (CAD)](/computer-aided-design): 3D modelling, GA drawings, fabrication tickets, DSTV NC, IFC. - [Engineering and Design](/engineering-and-design): Connection design to Eurocode 3 by chartered engineer. - [Manufacture](/manufacture): CNC sawing, drilling, plate processing, welding bay. - [Project Management](/project-management): NEC / JCT-aligned project management with weekly RAG reporting. - [Construction / Site Erection](/construction): CSCS-carded erection crews and on-site coded welding. - [Compliance and Reporting](/compliance-and-reporting): CE / UKCA DoP, mill certs, weld records, ITPs. - [CE / ISO Fabrication](/ce-iso-fabrication): BS EN 1090 EXC 3 and ISO 9001 quality management. - [UK Steel Delivery](/uk-steel-delivery): Nationwide steel and fabricated assembly delivery with HIAB offload. - [Delivery](/delivery): General delivery information. ## Electrical Infrastructure - [Aluminium Substation Support Structures](/aluminium-substation-support-structures/): Lightweight aluminium support structures for DNO / ICP / IDNO substations. - [Galvanized Steel Substation Support Structures](/galvanized-steel-substation-support-structures/): Hot-dip galvanised steel support frames for substation plant. - [Gantries, Masts and Girders](/gantries-masts-and-girders/): Substation gantries, take-off masts and busbar girders. - [GIS Buildings](/gis-buildings/): Structural steel for Gas-Insulated Switchgear enclosures. - [Specialist and Bespoke Steelwork](/specialist-and-bespoke-steelwork/): Bespoke fabricated steel for electrical infrastructure. - [Steel and GRP Platforms](/steel-and-grp-platforms/): Access platforms, walkways and stair towers in steel / GRP. - [Transmission and Distribution OHL Fabrication](/transmission-and-distribution-ohl-fabrication/): Overhead-line poles, brackets and tower steelwork. ## Sectors - [All Sectors](/sectors): Ten core UK sectors we work in. - [Commercial Construction](/commercial-construction): Offices, retail parks, mixed-use, business parks. - [Residential Development](/residential-development): Apartment blocks, BTR / PRS, student accommodation. - [Industrial Buildings](/industrial-buildings): Factories, workshops, production facilities, mezzanines. - [Infrastructure & Transport](/infrastructure-and-transport): Bridges, stations, gantries. - [Rail](/rail): Rail-related steelwork. - [Transport Infrastructure](/transport-infrastructure): Highways and transport hubs. - [Agricultural Buildings](/agricultural-buildings): Agriculture & equestrian, livestock, grain storage. - [Energy & Utilities](/energy-and-utilities): Renewables, plant, substation steelwork. - [Data Centres](/data-centres): MEP support steel, cooling supports, plant decks. - [Public Sector Projects](/public-sector-projects): Schools, hospitals, civic. - [Healthcare & Education](/healthcare-and-education): NHS and education buildings. - [Retail & Leisure](/retail-and-leisure): Retail parks, gyms, restaurants, hotels. ## Platform Tools - [AI Drawing Analyse](/ai-analyse): AI take-off from GA drawings, DSTV NC and DWG / DXF files. - [Project Management Workspace](/client-management): Live per-project workspace for drawings, quotes and certs. - [Calendar Management](/calendar-management): Delivery slot management with crane and erection sync. - [Past Projects](/past-projects): Project gallery. ## Company - [About CR Steel](/about): Company overview. - [Our Story](/our-story): How CR Steel came to be. - [Leadership](/leadership): The team. - [Certifications](/certifications): BS EN 1090, ISO 9001, BS EN 9606-1, accreditations. - [Contact](/contact): Phone, email, address and map. - [Submit Enquiry / Upload Drawings](/enquiry): Drawing upload, quote within 24 hours. ## Sitemaps - [/sitemap.xml](/sitemap.xml): Sitemap index. - [/sitemap-pages.xml](/sitemap-pages.xml): Static pages. - [/sitemap-categories.xml](/sitemap-categories.xml): Steel categories. - [/sitemap-sectors.xml](/sitemap-sectors.xml): Sector pages. - [/sitemap-beams.xml](/sitemap-beams.xml): Every individual beam / section. ## Crawling Guidance This site is open to indexing and citation. `robots.txt` allows all crawlers, every page serves `index, follow, max-image-preview:large, max-snippet:-1`, and full sitemaps plus Schema.org markup (Organization, WebSite, CollectionPage, ItemList, Product, BreadcrumbList, FAQPage, Service) are published. General-purpose search engines (Google, Bing) and AI answer engines / crawlers (GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-User, PerplexityBot, Google-Extended, Applebot, Bytespider, Amazonbot, DuckAssistBot, YouBot, Meta-ExternalAgent) are welcome to enumerate, index and cite the full site with attribution to CR Steel (https://crsteel.co.uk). ## Optional - [Privacy Policy](/privacy-policy) - [Cookie Policy](/cookie-policy) - [Terms & Conditions of Sale](/terms-and-conditions-of-sale) - [Website Terms of Use](/website-terms-of-use) - [Accessibility Statement](/accessibility-statement) - [Modern Slavery Statement](/modern-slavery-statement) - [Policies](/policies) - [Health & Safety Policy](/policies/health-and-safety) - [Environment Policy](/policies/environment)