--- title: Site Map | Koyda Ltd url: https://www.koyda.com/sitemap/ description: All pages on the Koyda Ltd website: services, sectors, areas, projects, guides and company information. last_modified: 2026-10-11 publisher: Koyda Ltd, Units 27–29 Jesmor Farm, St Piers Lane, Lingfield, Surrey RH7 6PN. 07753 213617, joe@koyda.com --- Site map # Site Map Every page on koyda.com. ## Home * [Architectural Metalwork & Structural Steel](https://www.koyda.com/) ## Services * [Architectural Metalwork Services](https://www.koyda.com/services/) * [Glass Balustrades for Contractors](https://www.koyda.com/services/glass-balustrades/) * [Metal Balustrades & Handrails](https://www.koyda.com/services/metal-balustrades-handrails/) * [Aluminium, Inset & Juliet Balconies](https://www.koyda.com/services/balconies/) * [Steel Feature, Spiral & External Staircases](https://www.koyda.com/services/staircases/) * [Rooftop Plant Screens: Bars & Louvres](https://www.koyda.com/services/plant-screens/) * [Structural & Secondary Steelwork](https://www.koyda.com/services/structural-steel/) * [Gateway 2 & BIM Metalwork Design](https://www.koyda.com/services/design-engineering-gateway-2-bim/) ## Sectors * [Sectors: Residential, Commercial, Education](https://www.koyda.com/sectors/) * [Balconies & Balustrades for Residential High-Rise](https://www.koyda.com/sectors/residential-high-rise/) * [Commercial Metalwork & Secondary Steel](https://www.koyda.com/sectors/commercial/) * [Stairs, Handrails & Balustrades for Schools](https://www.koyda.com/sectors/education/) * [Gates, Railings, Stairs & Garden Metalwork](https://www.koyda.com/sectors/domestic/) ## Areas * [Areas We Cover: London, Surrey, Sussex](https://www.koyda.com/areas/) * [Architectural Metalwork Contractor in London](https://www.koyda.com/areas/london/) * [Steel Fabricators & Metalwork in Surrey](https://www.koyda.com/areas/surrey/) * [Metal Gates, Railings & Steelwork in Sussex](https://www.koyda.com/areas/sussex/) ## Projects * [Projects: Balconies, Stairs & Steelwork](https://www.koyda.com/projects/) * [Juliet Balconies, Abbey Place Woolwich](https://www.koyda.com/projects/abbey-place-woolwich/) * [Feature Stairs, Woolwich Civic Centre](https://www.koyda.com/projects/woolwich-civic-centre-stairs/) * [Staircases, Imperial College London](https://www.koyda.com/projects/imperial-college-staircases/) * [Woodland Walkway, Unilever Campus Kingston](https://www.koyda.com/projects/unilever-woodland-walkway/) * [Stainless Steel Handrails, Canary Wharf](https://www.koyda.com/projects/canary-wharf-handrails/) * [Steelwork & Access Panels, Peninsula Hotel](https://www.koyda.com/projects/peninsula-hotel/) ## Gallery * [Project Gallery: Balustrades, Stairs & Steel](https://www.koyda.com/gallery-of-works/) ## Guides and Resources * [Guides and Resources: Steel Tables, Calculators, Guides](https://www.koyda.com/guides/) * [Handrail & Balustrade Regulations UK (England): Heights & Gaps](https://www.koyda.com/guides/handrail-and-balustrade-regulations/) * [Stair Regulations UK: Rise, Going, Headroom + Calculator](https://www.koyda.com/guides/stair-regulations/) * [RAL Colour Chart for Metalwork: All 216 RAL Classic Colours](https://www.koyda.com/guides/ral-colour-chart/) * [Galvanising vs Powder Coating vs Duplex for Steel](https://www.koyda.com/guides/galvanising-powder-coating-duplex/) * [Balustrade Heights & Loads: BS 6180 and Approved Doc K](https://www.koyda.com/guides/balustrade-heights-and-loads/) * [Glass Balustrade Specification: Toughened, Laminated, Low-Iron](https://www.koyda.com/guides/glass-balustrade-specification/) * [BS EN 1090 & Execution Classes (EXC1–EXC4) Explained](https://www.koyda.com/guides/bs-en-1090-execution-classes/) * [Gateway 2 for Metalwork Packages: Balconies, Balustrades](https://www.koyda.com/guides/gateway-2-metalwork-packages/) * [How to Specify Rooftop Plant Screens (Visual Screening)](https://www.koyda.com/guides/plant-screens-specification/) * [S275 vs S355 Steel: Strength, Sub-grades, RSJ vs UB](https://www.koyda.com/guides/s275-vs-s355-steel-grades/) * [Steel Plate & Flat Bar Weight Tables (kg/m², kg/m) + SWG](https://www.koyda.com/guides/plate-and-flat-bar-weights/) * [Bolt Grades 4.6, 8.8, 10.9, Sizes & Clearance Holes](https://www.koyda.com/guides/bolt-sizes-grades-and-holes/) * [Welding Symbols Explained: ISO 2553 Arrow Side, Fillet, Butt](https://www.koyda.com/guides/welding-symbols/) * [Glass Balustrade Thickness & Fixing Guide: BS 6180, ADK](https://www.koyda.com/guides/glass-balustrade-thickness-and-fixing/) * [Automated Gate Safety UK: BS EN 12453, Force Limits](https://www.koyda.com/guides/automated-gate-safety/) * [Intumescent Paint & Fire Protection for Steel: Hp/A, R60](https://www.koyda.com/guides/intumescent-paint-fire-protection/) * [Interactive Welding Guide: Fillet Weld Passes, Amps & MIG Settings](https://www.koyda.com/guides/welding-quick-guide/) * [Metalwork & Steelwork Glossary: A–Z Terms](https://www.koyda.com/guides/glossary/) ## News * [News](https://www.koyda.com/news/) * [Directors' Update and Outlook for 2026](https://www.koyda.com/news/directors-update-2026/) ## About * [About Koyda Ltd](https://www.koyda.com/about-us/) * [Ethos & Mission](https://www.koyda.com/about-us/ethos/) * [ESG Policy Statement](https://www.koyda.com/about-us/esg/) ## Contact * [Contact Koyda Ltd](https://www.koyda.com/contact-us/) ## Careers * [Careers](https://www.koyda.com/careers/) ## Privacy * [Privacy & Cookies](https://www.koyda.com/privacy/) ## Steel section tables * [Steel Section Tables UK: Beam, Angle & Hollow Section Sizes](https://www.koyda.com/steel-section-tables/) * [Universal Beam Sizes UK: UB Section Dimensions Table](https://www.koyda.com/steel-section-tables/universal-beams/) * [Universal Column Sizes UK: UC Dimensions Table](https://www.koyda.com/steel-section-tables/universal-columns/) * [PFC Sizes: Parallel Flange Channel Dimensions UK](https://www.koyda.com/steel-section-tables/parallel-flange-channels/) * [Equal Angle Sizes UK: Steel Angle Dimensions Table](https://www.koyda.com/steel-section-tables/equal-angles/) * [Unequal Angle Sizes UK: Dimensions Table](https://www.koyda.com/steel-section-tables/unequal-angles/) * [SHS Sizes Chart: Square Hollow Section Dimensions](https://www.koyda.com/steel-section-tables/square-hollow-sections/) * [RHS Sizes Chart: Rectangular Hollow Section Dimensions](https://www.koyda.com/steel-section-tables/rectangular-hollow-sections/) * [CHS Sizes Chart: Circular Hollow Section Dimensions](https://www.koyda.com/steel-section-tables/circular-hollow-sections/) ## Steel weight calculator * [Steel Weight Calculator UK: Beams, Angles, Hollow Sections](https://www.koyda.com/steel-weight-calculator/) ## Steel-Quote-Builder * [Steel Quote Builder: Beam Weights, Cutting List & Offcuts (UK)](https://www.koyda.com/steel-quote-builder/) ## Beam-Span-Checker * [Steel Beam Span Checker: UB & UC Bending, Shear, Deflection (UK)](https://www.koyda.com/beam-span-checker/) ## Steel-Paint-Area-Calculator * [Steel Paint & Galvanising Area Calculator: m² per Metre (UK)](https://www.koyda.com/steel-paint-area-calculator/) ## Lintel-And-Padstone-Helper * [Steel Lintel and Padstone Helper: Beam over an Opening (UK)](https://www.koyda.com/lintel-and-padstone-helper/) ## Bolt-And-Fixing-Guide * [Bolt Torque, Clearance Hole and Edge Distance Guide (M3 to M33)](https://www.koyda.com/bolt-and-fixing-guide/) ## Steel-Delivery-Check * [Steel Delivery Check: Which Lorry, Overhang and Crane Offload (UK)](https://www.koyda.com/steel-delivery-check/) ## App * [Get the Koyda Tools App: Free Steel Calculators and Guides, Offline](https://www.koyda.com/app/)