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Corrugated Galvanized Steel Sheets
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
  • 4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet
4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet

4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet

  • 25 - 99 Tons
    $769
  • 100 - 499 Tons
    $739
  • >= 500 Tons
    $689

Customization:

Customized logo（Min.Order: 27 pieces）
Customized packaging（Min.Order: 27 pieces）
Graphic customization（Min.Order: 27 pieces）
View product details

4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Structural Support & Weather Resistance: Designed with a corrugated galvanized steel sheet profile to provide enhanced strength and durability for roofing and building applications. The zinc coating (Z30-Z40) ensures corrosion resistance, ideal for harsh outdoor environments.
  • Drainage & Stability: The parallel ridges and valleys in the corrugated pattern improve water runoff, reduce snow accumulation, and enhance structural integrity, making it suitable for both flat and sloped roofing systems.

Key features

  • 1. Material Technology

    • With a galvanized steel body (z30-z40 coating) and DX51D grade, ensure exceptional corrosion resistance and structural strength. ~30% more durable than standard galvanized sheets*

  • 2. Interactive Design

    • With a corrugated pattern design, enhance structural integrity and water drainage efficiency. Reduces installation time by 25% compared to flat sheets*

  • 3. Performance Parameters

    • Precision-engineered with ±1% tolerance and full-hard hardness, guarantee seamless integration in construction projects. Outperforms competitors in load-bearing capacity by 40%*

  • 4. Scenario Solutions

    • Ideal for roofing and structural applications in harsh environments, resisting extreme weather (rain/snow/wind). Suitable for both residential and commercial use, outperforming plastic alternatives in durability*

  • 5. Certification Standards

    • Complies with SNI certification standards, ensuring safety and quality for construction projects. Meets international building codes beyond local requirements*

Product details

4x8 GI Corrugated Steel Sheet Galvanized Corrugated Steel Sheet Metal Roofing Sheet

The 4x8 GI Corrugated Steel Sheet is a durable, galvanized steel solution for roofing and structural applications. Engineered with a corrugated design for enhanced strength and water resistance, it offers customizable dimensions and finishes to meet diverse construction needs. Certified to SNI standards, this product ensures reliability in harsh outdoor environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialGalvanized Steel (Z30-Z40 coating)Roofing, siding, and exterior structures
GradeDX51D (Full Hard)High-stress structural applications
Corrugated DesignParallel ridges/valleys (standard profile)Water/snow shedding for roofing systems
Length Options3601-3660mm, 1400-2000mm rangesCustomizable to fit project dimensions
Tolerance±1% or 1%Precision fitting in modular builds
Coating ThicknessZ30-Z40 (300-400g/m² zinc coating)Corrosion resistance in coastal regions
CertificationSNI (Indonesian National Standard)Compliance for Southeast Asian projects

Customization guide

Adjustable parameters:

  • Length/Width: Tailor to specific project dimensions (e.g., 3601-3660mm for large roofs).
  • Coating Thickness: Opt for Z40 for extreme corrosion resistance or Z30 for standard applications.
  • Spangle Finish: Choose between zero spangle (smooth) or regular spangle (textured) for aesthetic alignment.

Get inspired

With its galvanized coating, you can ensure long-term durability in humid or marine environments. The corrugated profile allows for easy installation and natural drainage, reducing the risk of leaks. Whether building a warehouse or a residential roof, this sheet’s versatility adapts to both functional and design requirements.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Coating ThicknessZ30 (300g/m²)Z35 (350g/m²)Z40 (400g/m²)*
Corrosion Resistance20 years25 years30+ years
WeightStandardLightweightUltra-lightweight
Tolerance Range±1%±0.5%±0.3%

Supplier's note

  1. Key Technical Breakthroughs:

    • Z40 Coating (Pro Model): Triple the corrosion resistance of traditional GI sheets, ideal for coastal or industrial zones.
    • Full Hard Grade (DX51D): 20% stronger than standard steel grades, ensuring structural integrity under heavy loads.
    • SNI Certification: Aligns with stringent Indonesian standards, enabling seamless compliance for Southeast Asian projects.

  2. Optimal Version Selection:

    • Base Model: Suitable for residential roofing in low-corrosion areas. Its Z30 coating and standard tolerance meet basic durability needs.
    • Advanced Model: Best for commercial buildings requiring a balance of cost and performance. The lighter weight reduces installation effort without compromising strength.
    • Pro Model: Tailored for industrial or marine environments. The Z40 coating and tighter tolerance ensure longevity in harsh conditions, paired with ultra-lightweight design for easier handling.

*Pro Model’s Z40 coating exceeds industry benchmarks by 13% in salt-spray resistance testing.

Frequently asked questions

  • Which GI corrugated steel sheet size suits commercial roofing projects?

  • How to maintain the galvanized coating on corrugated steel roofing?

  • What’s the difference between Z30 and Z40 galvanized coatings for roofing?

  • Can GI corrugated steel sheets be customized for unique building designs?

  • Are Shandong Sino GI corrugated sheets SNI-certified for safety?

  • Which steel grade is best for high-wind areas?

  • Can GI corrugated sheets be used for both residential and industrial roofing?

  • How does the corrugated design improve roof longevity?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material & Coating ThicknessCorrosive outdoor environments (e.g., coastal roofing)Industry Standard: z20 coating (ASTM A123, 200g/m²)
Our Base: z30 coating (▲)
Our Advanced: z40 coating (▲▲)		▲▲ Enhanced corrosion resistance (withstands 50+ chemical exposures)Higher cost for z40 coating (▲▲)
Structural IntegrityHigh-stress applications (e.g., industrial warehouses)Industry Standard: DX33 grade (250 MPa yield strength)
Our Base/Advanced: DX51D full hard grade (350 MPa) (▲▲)		▲▲ Superior load-bearing capacity (ISO 13943 compliant)Less malleable for complex bends (▲▲)
Corrugation DesignRoofing requiring water runoff (e.g., sloped roofs)Industry Standard: 30mm rib spacing
Our Base/Advanced: 25mm optimized spacing (▲▲)		▲▲ Reduces water pooling (ISO 10160 compliant)Slightly higher material cost (▲)
CustomizationCustom project dimensions (e.g., irregular roof spans)Industry Standard: Fixed lengths ≤3000mm
Our Base: Adjustable up to 2000mm (▲)
Our Advanced: Up to 3660mm (▲▲)		▲▲ Flexible installation (meets ±1% tolerance)Longer production time for bespoke sizes (▲▲)
CertificationsCompliance-driven projects (e.g., government buildings)Industry Standard: Basic local certs
Our Base: SNI certification (▲)
Our Advanced: SNI + ISO 345 (▲▲)		▲▲ Meets global standards (e.g., EU directives)Limited regional applicability for SNI-only (▲)
Weight-to-Strength RatioLightweight construction (e.g., temporary shelters)Industry Standard: 8 kg/m²
Our Base/Advanced: 6.5 kg/m² (▲▲)		▲▲ Easier handling (reduces labor costs)Requires reinforcement for heavy loads (▲▲)

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