Precision Metal, Structural Steel & Aluminium Works
All Disciplines

Precision Metal, Structural Steel & Aluminium Works

Heavy structural steel portal framing, clear-span warehouse trusses, architectural curtain walling, frameless glass partitions, and industrial roller shutters.

Governing Standards:BS 5950 / Eurocode 3 Structural SteelAWS D1.1 Structural Welding CodeCWCT Curtain Wall StandardsISO 9001:2015 QA/QC Assured

Executive Scope & Engineering Operations

Precision Engineering, Grounded in 19+ Years of Field Practice

Our dedicated heavy fabrication facility in Makogi Extension, Ogun State gives Krysta Forms Limited direct in-house control over heavy structural steel portal framing, long-span roof trusses, and precision architectural metal engineering. With high-tonnage overhead yard gantry cranes and certified coded welders, we fabricate clear-span warehouse frames, industrial storage silos, acoustic aluminium curtain walling, and automated roller shutter portals under strict factory tolerance controls.

Est. October 2007 (Nigeria)
Makogi Heavy Yard & Lagos Fleet
Precision Metal, Structural Steel & Aluminium Works on-site installation

Verified Site Installation • Krysta Forms Operations

Systematic Scope of Work

Detailed Scope of Engineering Execution

Every system is engineered to international tolerances, backed by direct workshop staging and rigorous QA/QC documentation.

01.

Heavy Structural Steel Framing & Industrial Warehouses

Engineered steel frames fabricated under strict workshop tolerance controls at our Makogi heavy industrial yard.

  • Factory and logistics clear-span portal frames and mezzanine steel decks (up to 45m column-free spans).
  • Long-span roof trusses, purlins, curved architectural canopies, and crane gantry runways.
  • Heavy machinery support platforms, structural cat-walks, and industrial stair towers.
  • Sa 2.5 grit blasting, red oxide priming, and marine-grade epoxy anti-corrosion coating systems.
02.

Architectural Aluminium & Commercial Curtain Walling

Modern commercial building envelopes, acoustic double glazing, and precision interior partitions.

  • Structural Silicone Glazed (SSG) and unitized curtain walling with double-glazed low-E acoustic glass.
  • High-spec frameless glass partitions and acoustic office dividers (Octagon & LASTMA Complexes).
  • Heavy-duty powder-coated and anodized aluminium casement, sliding, and projected window systems.
  • Automated industrial roller shutter doors, motorized entrance portals, and security barriers.
03.

Industrial Pressure Vessels, Silos & Storage Tankage

Certified coded welding of petroleum storage tanks and food-grade process containers.

  • Above-ground and underground fuel/diesel bulk storage tanks (10,000L – 100,000L+ capacity).
  • Food-grade 304/316 stainless steel storage vessels, mixing hoppers, and process fluid tanks.
  • Heavy industrial acoustic generator sound-attenuation enclosures and exhaust silencers.
  • High-pressure piping manifolds, flange assemblies, and heavy bulk storage silos.

Engineering Tolerances & Parameters

Technical Specifications & Design Criteria

ISO 9001:2015 Calibrated

The following table outlines the governing design codes, material standards, and performance specifications applied across this discipline.

Engineering ParameterTechnical Specification & RangeGoverning Standard / Quality Code
Structural Steel GradesS275JR / S355JR structural sections, universal beams & columnsBS EN 10025 / Mill Certified
Clear-Span CapabilityUp to 45m column-free clear portal spans for logistics hubsDeflection Limit ≤ L/360
Welding Code ComplianceMIG / TIG / SMAW multi-pass coded welding by certified weldersAWS D1.1 / BS EN ISO 9606-1
Aluminium Glazing & Curtain WallStructural Silicone Glazed (SSG) & Unitized stick curtain wallingCWCT Class 1 / Low-E Glass
Surface Anti-Corrosion ProtectionGrit blast Sa 2.5, 75µm red oxide primer, 120µm marine epoxy finishISO 12944 C4 Marine Durability
Acoustic Partition RatingsDemountable frameless glass & melamine/HPL modular partitionsSound Insulation up to 48dB Rw
Precision Metal, Structural Steel & Aluminium Works secondary equipment

Fabrication & Staging • Makogi Heavy Yard, Ogun State

Direct Machine Ownership

In-House Machinery & Calibrated Testing Rigs

We eliminate subcontracting bottlenecks by owning our core plasma cutting, hydro-testing, and electrical injection testing equipment across Lagos and Ogun State.

10-Tonne Yard Overhead Gantry Cranes10,000 kg lifting capacity

Heavy structural steel truss staging, rotation & trailer loading

📍 Makogi Heavy Yard, Ogun State

200-Tonne Hydraulic CNC Press Brake200T / 4,000mm bed width

Precision plate folding, custom channel & flanged structural profiles

📍 Makogi Heavy Yard, Ogun State

Heavy-Duty Hydraulic Guillotine ShearsUp to 16mm steel plate cutting

High-volume sheet & structural plate sizing with burr-free edges

📍 Makogi Heavy Yard, Ogun State

Industrial Double-Head Aluminium Mitre SawHigh-precision compound mitre

Architectural curtain wall and window frame precision cutting

📍 Lagos & Makogi Fabrication Units

Mobile Inverter Coded Welding Rigs400A Multi-Process MIG/TIG/SMAW

High-elevation on-site structural joints & radiographic weld seams

📍 Site Fleet & Field Rigging Squads

Engineering Governance

5-Stage Project Delivery Lifecycle

Our structured 5-stage project methodology ensures zero discrepancy between architectural design, workshop fabrication, and on-site commissioning.

01Design & Feasibility

3D TEKLA Modeling & Structural Connection Detailing

Structural load calculations, connection joint engineering, and BIM clash coordination with MEP services.

Deliverable:Approved 3D TEKLA structural models & shop fabrication drawings
02Planning & Optimization

BEME Quantities & Steel Cutting Nesting Plans

Bill of Quantities validation, steel procurement schedules, and automated CNC nesting to minimize scrap.

Deliverable:Optimized material procurement schedules & weld procedure specifications (WPS)
03Yard Fabrication

Precision Workshop Fabrication & Anti-Corrosion Priming

Cutting, drilling, coded welding, and surface grit blasting with epoxy priming at our Makogi facility.

Deliverable:NDT ultrasonic weld inspection logs & primer thickness reports
04Site Erection

Mobile Cranage Mobilization & Heavy Structural Rigging

Precision crane placement, calibrated torque bolt tightening, high-elevation alignment, and on-site welding.

Deliverable:Plumb-line survey verification & certified torque test sheets
05Handover & SLA

Final Architectural Sign-off & Maintenance Manuals

Final seal checks, glazing water testing, paint touch-up, and issuance of warranty documentation.

Deliverable:As-Built drawings package, material mill certs & warranty documentation

Quality Assurance & Handover

Certified Engineering Handover Deliverables

Complete Documentation Package

Every contract executed by Krysta Forms Limited concludes with an authoritative, audit-ready handover dossier including:

Structural Steel Mill Certificates & Material Traceability Records
Non-Destructive Testing (NDT) Dye-Penetrant & Ultrasonic Weld Logs
Dry Film Thickness (DFT) Paint & Galvanizing Inspection Reports
As-Built 3D TEKLA & AutoCAD Fabrication Drawings
Curtain Wall Water Ingress & Acoustic Test Certificates

Proven Track Record

Representative Project Case Studies

VIEW FULL PORTFOLIO MATRIX
Corona Schools Trust CouncilAgbara, Ogun State

Curved Steel Walkway Canopies & Fenestration

Architectural curved structural steel walkway canopies and heavy aluminium window installations.

ISO 9001 Certified DeliveryRequest Tender Specs →
Octagon & LASTMA ComplexesOshodi & Lagos Operations

Turnkey Office Partitioning & Aluminium Fenestration

Acoustic office partitions, frameless glass assemblies, and aluminium roller shutter installations.

ISO 9001 Certified DeliveryRequest Tender Specs →

Direct Engineering Consultation

Speak Directly with Our Technical Leads in Lagos & Ogun

Whether you have an upcoming tender, an architectural blueprint needing MEP coordination, or require heavy structural steel fabrication, our engineering directors are available for technical consultations.

Explore Adjacent Engineering Disciplines

All 5 Capabilities →