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C840 Corrugated Polycarbonate Sheet

Our most popular corrugated profile featuring 5-wave design with 840mm effective coverage. Optimized for cost-effective daylighting across industrial, agricultural, and commercial applications with excellent strength-to-weight ratio.

Optimized C840 Profile

5-wave design with 840mm coverage for efficient installation and structural performance

Cost-Effective Solution

Best-selling profile offers optimal balance of performance and affordability

Transparent Constructionmart 840 polycarbonate corrugated sheet placed above green plants, showing its clear texture and excellent light transmission.

5-Wave Design

Optimized corrugated profile for strength and drainage

840mm Coverage

Efficient coverage width reduces installation time

Excellent Daylighting

Superior light transmission for energy savings

Easy Installation

Lightweight design for faster, safer installation

C840 Profile Specifications

Detailed technical specifications for the most popular corrugated profile

Profile Dimensions

Actual Width

900mm

Total sheet width

Cover Width

840mm

Effective coverage

Wave Count

5 waves

Wave Height

18mm

Wave Spacing

168mm

Standard Lengths Available:

2000mm 2440mm 3000mm 3660mm 4880mm 5800mm 6100mm

Custom lengths available on request

Profile Cross-Section

Small sample of the Constructionmart 840 polycarbonate corrugated sheet showing its wave profile and durable design.
Coverage Efficiency: 93.3%
Overlap Requirement: 1.5 waves (252mm)
Minimum Slope: 15% (8.5°)

C840 Thickness Options

Choose optimal thickness for your specific application requirements

1.2mm C840 Specifications

Weight per meter

1.44 kg/m

Lightweight design

Strength Rating

Medium duty

Application suitability

Bending Capability

Moderate

Cold forming ability

Ideal Applications:

Commercial roofing
Industrial buildings
Sports facilities

C840 Technical Advantages

Engineering benefits that make C840 the most popular corrugated profile

Optimized C840 Profile Design

5-wave corrugated profile provides excellent structural strength and weather performance

Key Benefits:

Optimal strength-to-weight ratio
Efficient water drainage
Cost-effective coverage
Easy installation

Superior Light Transmission

Corrugated design maintains excellent light transmission while providing structural integrity

Key Benefits:

Enhanced daylighting
Energy cost reduction
Improved work environments
Natural lighting quality

Cost-Effective Coverage

840mm effective width provides efficient coverage with minimal waste and overlap

Key Benefits:

Material efficiency
Reduced installation time
Lower project costs
Minimal waste generation

Versatile Applications

Suitable for wide range of building types from agricultural to commercial applications

Key Benefits:

Design flexibility
Multi-purpose use
Broad market appeal
Adaptable solutions

C840 Color Collection

Professional colors optimized for corrugated daylighting applications

Clear

Trans: 85-88%

Heat: High

Maximum light transmission for optimal daylighting

Applications:

Skylights
Warehouses

Features:

• Maximum brightness
• Natural lighting

✓ Selected for C840 quote

Opal

Trans: 75-80%

Heat: Medium

Translucent white for diffused lighting and glare reduction

Applications:

Office buildings
Retail spaces

Features:

• Diffused light
• Glare reduction

✓ Selected for C840 quote

Bronze

Trans: 45-50%

Heat: Low

Heat-reducing tinted option for comfort and energy efficiency

Applications:

Hot climates
Comfort applications

Features:

• Heat reduction
• Comfort enhancement

✓ Selected for C840 quote

Blue

Trans: 28-32%

Heat: Low

Modern blue tinting for contemporary architectural designs

Applications:

Modern facilities
Contemporary design

Features:

• Modern aesthetics
• Heat control

✓ Selected for C840 quote

Green

Trans: 32-36%

Heat: Medium

Natural green for environmental integration and harmony

Applications:

Agricultural buildings
Environmental projects

Features:

• Environmental harmony
• Natural integration

✓ Selected for C840 quote

Red

Trans: 20-25%

Heat: Medium

High-visibility red for safety and accent applications

Applications:

Safety buildings
Emergency facilities

Features:

• High visibility
• Safety applications

✓ Selected for C840 quote

C840 Application Solutions

Versatile corrugated roofing applications across diverse building types

Industrial warehouse roofing system using Constructionmart 840 polycarbonate corrugated sheets, providing daylighting and weather resistance for factory buildings.

Industrial & Warehouse Roofing

Cost-effective daylighting solution for large-scale industrial buildings

Key Benefits:

Excellent light transmission
Cost-effective coverage
Easy installation
Low maintenance

Features:

• Large-span capability
• Weather resistance
• Thermal efficiency
• Quick installation

Recommended Thickness:

1.2mm 1.5mm 2.0mm

Design Considerations:

• Load calculations • Thermal expansion • Drainage design • Access requirements

Installation Tips:

• Proper slope design • Secure fastening • Weather sealing • Maintenance access
Interior view of an agricultural greenhouse using Constructionmart 840 polycarbonate corrugated sheets for optimal light transmission and UV protection.

Agricultural Building Coverage

Optimal lighting and protection for agricultural and livestock facilities

Key Benefits:

Natural animal lighting
Weather protection
Ventilation compatibility
Durability

Features:

• Agricultural grade materials
• Animal-safe design
• Ventilation integration
• Easy cleaning

Recommended Thickness:

1.0mm 1.2mm 1.5mm

Design Considerations:

• Animal requirements • Ventilation needs • Cleaning access • Chemical resistance

Installation Tips:

• Ventilation planning • Animal safety • Cleaning considerations • Chemical compatibility
Partial view of a commercial retail center roof made with Constructionmart 840 polycarbonate corrugated sheets, enhancing daylight and modern aesthetics.

Commercial & Retail Daylighting

Professional daylighting for commercial buildings and retail spaces

Key Benefits:

Professional appearance
Energy cost reduction
Customer comfort
Building code compliance

Features:

• Professional finish
• Energy efficiency
• Building integration
• Code compliance

Recommended Thickness:

1.2mm 1.5mm 2.0mm

Design Considerations:

• Building codes • Aesthetic requirements • Energy efficiency • Professional standards

Installation Tips:

• Professional installation • Code compliance • Aesthetic integration • Energy optimization
Entrance roofing of a sports and recreation facility using Constructionmart 840 polycarbonate corrugated sheets, providing bright natural light and protection.

Sports & Recreation Facilities

High-performance roofing for sports complexes and recreational buildings

Key Benefits:

Optimal sports lighting
Impact resistance
Large-span coverage
Safety compliance

Features:

• Sports lighting standards
• Impact resistance
• Large spans
• Safety compliance

Recommended Thickness:

1.5mm 2.0mm

Design Considerations:

• Sports lighting requirements • Impact loads • Safety standards • Acoustic control

Installation Tips:

• Sports standards • Safety compliance • Impact resistance • Lighting optimization
Side view of a carport covered with Constructionmart 840 polycarbonate corrugated sheets, combining durability and high light transmittance.

Carports & Parking Structures

Weather protection and natural lighting for vehicle parking areas

Key Benefits:

Vehicle protection
Natural lighting
Cost-effective solution
Easy maintenance

Features:

• Weather protection
• UV resistance
• Cost efficiency
• Low maintenance

Recommended Thickness:

1.0mm 1.2mm 1.5mm

Design Considerations:

• Vehicle clearance • Drainage design • Wind loads • Access requirements

Installation Tips:

• Proper drainage • Wind resistance • Vehicle clearance • Maintenance access
Top-down view of a walkway canopy made with Constructionmart 840 polycarbonate corrugated sheets, featuring a sleek and transparent design.

Canopies & Walkway Covers

Protective covering for pedestrian areas and building entrances

Key Benefits:

Pedestrian protection
Architectural integration
Weather resistance
Visual appeal

Features:

• Architectural compatibility
• Weather protection
• Pedestrian safety
• Design flexibility

Recommended Thickness:

0.8mm 1.0mm 1.2mm

Design Considerations:

• Pedestrian safety • Architectural integration • Weather loads • Accessibility

Installation Tips:

• Safety compliance • Architectural integration • Weather sealing • Accessibility

C840 Installation Excellence

Professional installation guidelines for optimal C840 corrugated performance

C840 Profile Installation

1

Install C840 corrugated sheets with minimum 15% slope (8.5°) for proper water drainage and weather performance

2

Ensure proper overlap of 1.5 corrugations (252mm) between adjacent sheets for weather sealing and structural integrity

3

Use appropriate fasteners spaced at maximum 1000mm centers along purlins with proper sealing washers

4

Plan thermal expansion joints for lengths over 6 meters to accommodate thermal movement and prevent buckling

5

Install ridge and valley components specifically designed for C840 profile for proper weather sealing

Structural Support Design

1

Design purlin spacing according to thickness and local wind/snow loads - typically 1200-1500mm for standard applications

2

Ensure adequate structural support for corrugated profile load distribution and prevent deflection

3

Plan for concentrated loads such as maintenance access points and equipment mounting requirements

4

Design end supports to accommodate thermal movement while maintaining structural integrity

5

Consider building movement and settlement in structural design to prevent stress concentration

Weather Sealing Systems

1

Install appropriate weather sealing strips designed for C840 corrugated profile at all horizontal joints

2

Use compatible sealants and flashings that accommodate thermal movement of polycarbonate materials

3

Plan drainage systems to handle water flow from corrugated profile and prevent ponding

4

Install proper guttering systems sized for C840 profile water flow characteristics and local rainfall

5

Design ventilation systems that work effectively with corrugated profile while maintaining weather resistance

Quality Control & Maintenance

1

Inspect installation for proper corrugation alignment and secure fastening throughout the roof system

2

Verify weather sealing integrity at all joints, penetrations, and building interfaces

3

Establish maintenance schedules for cleaning and inspection appropriate for corrugated profile design

4

Document installation specifications and materials for warranty compliance and future maintenance reference

5

Plan safe access systems for maintenance that work with corrugated profile without damage risk

Professional C840 Installation

Our certified installation specialists provide expert services for C840 corrugated polycarbonate with deep knowledge of profile-specific requirements, structural considerations, and weather sealing techniques.

Customer Reviews

4.2
Based on 45 reviews
5 star
49%
4 star
33%
3 star
16%
2 star
2%
1 star
0%
H

Henry Cooper

Agricultural Building Contractor
November 2024
Perfect match for C840 metal roofing

Used these for skylights in multiple farm buildings with C840 metal roofing profiles. The fit is absolutely perfect - you can't tell where the metal ends and polycarbonate begins. Excellent water drainage and structural performance in our harsh rural environment.

Perfect Fit Agricultural Use Weather Resistant
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P

Patricia Lee

Industrial Facility Manager
October 2024
Good for specific applications

Installed for warehouse daylighting where existing roof is C840 profile. Works well for the intended purpose, but the deep profile means limited availability compared to standard corrugated. Plan ahead and verify profile compatibility before ordering.

Limited Availability Profile Specific Plan Ahead
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R

Roberto Silva

Roofing Specialist
September 2024
Excellent structural performance

The deep corrugation provides outstanding strength for large spans. Used on a manufacturing facility with 30-foot purlin spacing - no deflection issues. Installation requires experienced crew familiar with this specific profile, but results are excellent.

High Strength Large Spans Experienced Install
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C840 Cost-Effective Investment

C840 corrugated polycarbonate delivers exceptional value through optimized profile design, efficient coverage, and proven performance across diverse applications. The most popular choice for cost-conscious daylighting projects.

Profile Efficiency

Performance Value

Cost Benefits

Professional Support

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C840 Profile Specifications

Actual Width: 900mm | Cover Width: 840mm | Wave Count: 5 waves
Most popular corrugated profile for cost-effective daylighting applications.

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Factory Location

ConstructionMart Industrial Park Polycarbonate Production Zone Guangdong Province, China 518000

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