Best 4mm Bronze Twinwall Polycarbonate Sheet of 2025

Last updated on 08/10/2025
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1
15 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-skin sheets, greenhouse
15 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-skin sheets, greenhouse
Generisch
Main Highlights
  • We sell a special item of brand new, unused multi-wall sheets made of colourless polycarbonate with original, undamaged protective film. The plates have the following features: fire behaviour B-s1, d0, light transmission approx. 81% - Surface weight 0.75 kg/m² / 750 g/m² - Heat transfer coefficient U (W/m²K) 3.9 - UV-protected on one side - insulating - hail-proof / impact resistant - durable / weather-resistant
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9.9
Exceptional
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9.9
Exceptional
Generisch
15 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-skin sheets, greenhouse
Main Highlights
  • We sell a special item of brand new, unused multi-wall sheets made of colourless polycarbonate with original, undamaged protective film. The plates have the following features: fire behaviour B-s1, d0, light transmission approx. 81% - Surface weight 0.75 kg/m² / 750 g/m² - Heat transfer coefficient U (W/m²K) 3.9 - UV-protected on one side - insulating - hail-proof / impact resistant - durable / weather-resistant
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Value for Money
2
Bronze, 2.1 x 4m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Bronze, 2.1 x 4m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Truly PVC Supplies
Why we love it
  • Minimises long-term yellowing.
  • High resistance to breakage.
  • Class 1 Spread of Flame.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
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9.8
Exceptional
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9.8
Exceptional
Truly PVC Supplies
Bronze, 2.1 x 4m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Why we love it
  • Minimises long-term yellowing.
  • High resistance to breakage.
  • Class 1 Spread of Flame.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
3
5 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-wall sheets, greenhouse
5 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-wall sheets, greenhouse
Generisch
Main Highlights
  • We sell a special item of brand new, unused multi-wall sheets made of colourless polycarbonate with original, undamaged protective film. The plates have the following features: fire behaviour B-s1, d0, light transmission approx. 81% - Surface weight 0.75 kg/m² / 750 g/m² - Heat transfer coefficient U (W/m²K) 3.9 - UV-protected on one side - insulating - hail resistant / impact resistant - durable / weather-resistant.
Show More
9.6
Superb
Product image 1
9.6
Superb
Generisch
5 x twin-wall twin-wall sheets, 1200 x 800 x 4 mm, polycarbonate multi-wall sheets, greenhouse
Main Highlights
  • We sell a special item of brand new, unused multi-wall sheets made of colourless polycarbonate with original, undamaged protective film. The plates have the following features: fire behaviour B-s1, d0, light transmission approx. 81% - Surface weight 0.75 kg/m² / 750 g/m² - Heat transfer coefficient U (W/m²K) 3.9 - UV-protected on one side - insulating - hail resistant / impact resistant - durable / weather-resistant.
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4
GARDEBRUK® 14x Polycarbonate Twin Wall Sheets | 4mm | 10.25 m² | Double Wall | Roofing | Greenhouse | Clear | Multi Panels Plastic | Outdoor | Canopy | Cold Frame | 121x60.5cm
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GARDEBRUK® 14x Polycarbonate Twin Wall Sheets | 4mm | 10.25 m² | Double Wall | Roofing | Greenhouse | Clear | Multi Panels Plastic | Outdoor | Canopy | Cold Frame | 121x60.5cm
Gardebruk
15% Off
Why we love it
  • Ideal for diverse applications.
  • Easy to cut and transport.
  • Weather and temperature resistant.
Main Highlights
  • FLEXIBLE APPLICATION - Whether as a replacement part for your greenhouse, cold frame, carport or for your DIY project, these 14 UV-resistant GARDEBRUK twin wall sheets in standard size are ideal for every application - there are no limits to your creativity!
  • EASY TO CUT - The polycarbonate sheets can easily be cut to size with a cutter knife or a saw. Thanks to their low weight, the panels are easy to transport and yet extremely stable thanks to their hollow space system.
  • HIGH WEATHER RESISTANCE - Polycarbonate is a weather-resistant, robust material. The hollow-chamber sheets are quite resistant to cracks, hail, impacts and feature a UV coating. Perfect for your greenhouse or conservatory.
  • HIGH FLEXIBILITY - The panels are flexible in a small frame and thus guarantee simple and break-free installation. They are heat-resistant up to about 120 degrees Celsius, making them ideal for long heat periods.
  • GOOD TEMPERATURE RESISTANCE - The special UV coating reflects the solar rays and thus causes much less heating in summer. Its excellent thermal insulation remains in winter. This allows you to enjoy your conservatory and your plants at any time of the year!
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9.5
Superb
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9.5
Superb
Gardebruk
GARDEBRUK® 14x Polycarbonate Twin Wall Sheets | 4mm | 10.25 m² | Double Wall | Roofing | Greenhouse | Clear | Multi Panels Plastic | Outdoor | Canopy | Cold Frame | 121x60.5cm
15% Off
Why we love it
  • Ideal for diverse applications.
  • Easy to cut and transport.
  • Weather and temperature resistant.
Main Highlights
  • FLEXIBLE APPLICATION - Whether as a replacement part for your greenhouse, cold frame, carport or for your DIY project, these 14 UV-resistant GARDEBRUK twin wall sheets in standard size are ideal for every application - there are no limits to your creativity!
  • EASY TO CUT - The polycarbonate sheets can easily be cut to size with a cutter knife or a saw. Thanks to their low weight, the panels are easy to transport and yet extremely stable thanks to their hollow space system.
  • HIGH WEATHER RESISTANCE - Polycarbonate is a weather-resistant, robust material. The hollow-chamber sheets are quite resistant to cracks, hail, impacts and feature a UV coating. Perfect for your greenhouse or conservatory.
  • HIGH FLEXIBILITY - The panels are flexible in a small frame and thus guarantee simple and break-free installation. They are heat-resistant up to about 120 degrees Celsius, making them ideal for long heat periods.
  • GOOD TEMPERATURE RESISTANCE - The special UV coating reflects the solar rays and thus causes much less heating in summer. Its excellent thermal insulation remains in winter. This allows you to enjoy your conservatory and your plants at any time of the year!
Show More
5
Arebos Polycarbonate Panel Roofing Set of 14 | 121 x 60.5 cm | polycarbonate sheets 4 mm thick | UV-resistant | 700 g/m² | transparent | for greenhouses, carports, cold frames, canopies
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Arebos Polycarbonate Panel Roofing Set of 14 | 121 x 60.5 cm | polycarbonate sheets 4 mm thick | UV-resistant | 700 g/m² | transparent | for greenhouses, carports, cold frames, canopies
Arebos
Why we love it
  • Impact-resistant and UV-resistant sheets.
  • Easy installation and flexible cutting.
  • Versatile applications for various uses.
Main Highlights
  • [For greenhouses and gazebos] The impact-resistant and UV-resistant twin-wall sheets are specially designed for greenhouses, 4 mm thick hollow chamber sheets in standard size, suitable for all standard greenhouses and gazebos.
  • [Ideal dead weight] Our UV-resistant twin-wall sheets in standard size each have a weight of 700g/m².
  • [All-rounder] The range of applications for multi-skin sheets is versatile. Ideal for cold frames, horticulture, greenhouses, carports, shade, etc. The sheets are resistant to temperatures of up to around 120 degrees Celsius, which means that even long periods of heat have virtually no effect on the materials.
  • [Flexible cutting] Simple, uncomplicated installation! The panels can be easily and variably cut to the dimensions of your greenhouse using a cutting knife/carpet knife.
  • [High weather resistance] Polycarbonate is a weather-resistant, robust material. The hollow chamber multiwall sheets are highly resistant to breakage, hail and impact and have a UV coating. Perfect for your greenhouse or conservatory.
Show More
9.3
Superb
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9.3
Superb
Arebos
Arebos Polycarbonate Panel Roofing Set of 14 | 121 x 60.5 cm | polycarbonate sheets 4 mm thick | UV-resistant | 700 g/m² | transparent | for greenhouses, carports, cold frames, canopies
Why we love it
  • Impact-resistant and UV-resistant sheets.
  • Easy installation and flexible cutting.
  • Versatile applications for various uses.
Main Highlights
  • [For greenhouses and gazebos] The impact-resistant and UV-resistant twin-wall sheets are specially designed for greenhouses, 4 mm thick hollow chamber sheets in standard size, suitable for all standard greenhouses and gazebos.
  • [Ideal dead weight] Our UV-resistant twin-wall sheets in standard size each have a weight of 700g/m².
  • [All-rounder] The range of applications for multi-skin sheets is versatile. Ideal for cold frames, horticulture, greenhouses, carports, shade, etc. The sheets are resistant to temperatures of up to around 120 degrees Celsius, which means that even long periods of heat have virtually no effect on the materials.
  • [Flexible cutting] Simple, uncomplicated installation! The panels can be easily and variably cut to the dimensions of your greenhouse using a cutting knife/carpet knife.
  • [High weather resistance] Polycarbonate is a weather-resistant, robust material. The hollow chamber multiwall sheets are highly resistant to breakage, hail and impact and have a UV coating. Perfect for your greenhouse or conservatory.
Show More
6
Bronze, 1 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Bronze, 1 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Truly PVC Supplies
Why we love it
  • Minimizes long-term yellowing.
  • High resistance to breakage.
  • Super thermal efficiency.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
9.2
Superb
Product image 1
9.2
Superb
Truly PVC Supplies
Bronze, 1 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Why we love it
  • Minimizes long-term yellowing.
  • High resistance to breakage.
  • Super thermal efficiency.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
7
Bronze, 800m x 3.5m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Bronze, 800m x 3.5m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Truly PVC Supplies
Why we love it
  • Minimizes long-term yellowing.
  • High resistance to breakage.
  • Super thermal efficiency.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
9.0
Superb
Product image 1
9.0
Superb
Truly PVC Supplies
Bronze, 800m x 3.5m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Why we love it
  • Minimizes long-term yellowing.
  • High resistance to breakage.
  • Super thermal efficiency.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
8
Bronze, 1.2 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Bronze, 1.2 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Truly PVC Supplies
Why we love it
  • Minimises long-term yellowing.
  • High resistance to breakage.
  • Fraction of glass weight.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
8.8
Excellent
Product image 1
8.8
Excellent
Truly PVC Supplies
Bronze, 1.2 x 3m (Width x Length) 10mm Multiwall Polycarbonate Sheets Poly Plastic Roof Panel for Lean-to Canopy Conservatory
Why we love it
  • Minimises long-term yellowing.
  • High resistance to breakage.
  • Fraction of glass weight.
Main Highlights
  • UV Resistance - minimises long-term yellowing
  • High resistance to impact - resistance to breakage
  • Super thermal efficiency - twinwall structure
  • Robust yet lightweight - fraction of glass weight
  • Fire safety - Class 1 Spread of Flame Protection
Show More
9
BRITSHIELD® Polycarbonate Roofing & Greenhouse Sheets Clear 4mm (W:61cmxL:122cm) (ONLY UK Mainland ) (8)
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BRITSHIELD® Polycarbonate Roofing & Greenhouse Sheets Clear 4mm (W:61cmxL:122cm) (ONLY UK Mainland ) (8)
BRITSHIELD
Why we love it
  • Durable and reliable polycarbonate material.
  • Versatile for various applications.
  • Easy to cut and install.
Main Highlights
  • [Durable and Reliable] - Our product is made of premium polycarbonate material, which is UV-resistant, impact-resistant, water-resistant, and anti-yellowing. It has a long life span and a 10-year manufacturer guarantee.
  • [Versatile and Functional] - Our product can be used for various outdoor and indoor applications, such as greenhouses, skylights, conservat`ory roofing, signage, decorative partitions, and more. It can also be used for other DIY projects according to your needs.
  • [Easy to Cut and Install] - Our product is lightweight and flexible, making it easy to handle and install. You can cut it to any shape or size with a sharp knife or other tools, according to your needs. It can also be easily drilled and screwed.
  • [Thermal and Sound Insulation] - Our product has a twinwall structure, which provides excellent thermal and sound insulation. It can help you save energy and reduce noise, while creating a comfortable and cozy environment for your plants and yourself.
  • [Clear and Transparent] - Our product has a clear and transparent colour, which allows natural light to pass through. It has excellent optical properties and does not distort the colours or shapes of the objects behind it.
  • [Weather and UV Resistant] - Our product can withstand harsh weather conditions and protect your plants from harmful UV rays. It is resistant to chemicals and does not fade or crack over time.
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8.7
Excellent
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8.7
Excellent
BRITSHIELD
BRITSHIELD® Polycarbonate Roofing & Greenhouse Sheets Clear 4mm (W:61cmxL:122cm) (ONLY UK Mainland ) (8)
Why we love it
  • Durable and reliable polycarbonate material.
  • Versatile for various applications.
  • Easy to cut and install.
Main Highlights
  • [Durable and Reliable] - Our product is made of premium polycarbonate material, which is UV-resistant, impact-resistant, water-resistant, and anti-yellowing. It has a long life span and a 10-year manufacturer guarantee.
  • [Versatile and Functional] - Our product can be used for various outdoor and indoor applications, such as greenhouses, skylights, conservat`ory roofing, signage, decorative partitions, and more. It can also be used for other DIY projects according to your needs.
  • [Easy to Cut and Install] - Our product is lightweight and flexible, making it easy to handle and install. You can cut it to any shape or size with a sharp knife or other tools, according to your needs. It can also be easily drilled and screwed.
  • [Thermal and Sound Insulation] - Our product has a twinwall structure, which provides excellent thermal and sound insulation. It can help you save energy and reduce noise, while creating a comfortable and cozy environment for your plants and yourself.
  • [Clear and Transparent] - Our product has a clear and transparent colour, which allows natural light to pass through. It has excellent optical properties and does not distort the colours or shapes of the objects behind it.
  • [Weather and UV Resistant] - Our product can withstand harsh weather conditions and protect your plants from harmful UV rays. It is resistant to chemicals and does not fade or crack over time.
Show More
10
The Fellie 4mm Polycarbonate Sheets for Greenhouse, 6 Pieces of Greenhouse Polycarbonate Sheets, Clear Twin Wall Plastic Roofing Sheet Panel for Greenhouse, Outdoor Canopy, Carport, 61x122 cm
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The Fellie 4mm Polycarbonate Sheets for Greenhouse, 6 Pieces of Greenhouse Polycarbonate Sheets, Clear Twin Wall Plastic Roofing Sheet Panel for Greenhouse, Outdoor Canopy, Carport, 61x122 cm
The Fellie
Why we love it
  • Versatile, outdoor-friendly application.
  • Customizable size and shape.
  • Easy assembly, light material.
Main Highlights
  • 【Widely Use】Our 4mm polycarbonate greenhouse sheets adopts a hollow double-layer structure design, the outer surface has flowing stripes to help with drainage, suitable for greenhouse, roof canopy, carport, etc.
  • 【Easy to Cut】6 pieces of plastic roofing sheets can be easily cut into the shape and size you need with an art knife or other props, with strong resistance to bending and prevent deformation under compression.
  • 【Premium Material】This clear greenhouse panel is made of premium polycarbonate sheets, which is waterproof, UV resistant, and has strong flame retardancy, fade resistance, durable, can be used for a long time at -30°C to 120 °C.
  • 【Brief Specification】The dimension of greenhouse polycarbonate sheet is 61 x 122 cm, thickness is 4 mm, lightweight and easy to install, the total number of packages is 6 pieces per pack.
  • 【After-sale Service】Polycarbonate roofing sheet is great for greenhouse, outdoor canopy and carport. If you have any question, please contact us directly, we will reply you as soon as possible.
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8.7
Excellent
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8.7
Excellent
The Fellie
The Fellie 4mm Polycarbonate Sheets for Greenhouse, 6 Pieces of Greenhouse Polycarbonate Sheets, Clear Twin Wall Plastic Roofing Sheet Panel for Greenhouse, Outdoor Canopy, Carport, 61x122 cm
Why we love it
  • Versatile, outdoor-friendly application.
  • Customizable size and shape.
  • Easy assembly, light material.
Main Highlights
  • 【Widely Use】Our 4mm polycarbonate greenhouse sheets adopts a hollow double-layer structure design, the outer surface has flowing stripes to help with drainage, suitable for greenhouse, roof canopy, carport, etc.
  • 【Easy to Cut】6 pieces of plastic roofing sheets can be easily cut into the shape and size you need with an art knife or other props, with strong resistance to bending and prevent deformation under compression.
  • 【Premium Material】This clear greenhouse panel is made of premium polycarbonate sheets, which is waterproof, UV resistant, and has strong flame retardancy, fade resistance, durable, can be used for a long time at -30°C to 120 °C.
  • 【Brief Specification】The dimension of greenhouse polycarbonate sheet is 61 x 122 cm, thickness is 4 mm, lightweight and easy to install, the total number of packages is 6 pieces per pack.
  • 【After-sale Service】Polycarbonate roofing sheet is great for greenhouse, outdoor canopy and carport. If you have any question, please contact us directly, we will reply you as soon as possible.
Show More

We scanned 398 products

We reviewed these offers relevant to the 4mm Bronze Twinwall Polycarbonate Sheet within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Generisch, Truly PVC Supplies, Gardebruk, Arebos, BRITSHIELD, The Fellie, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best 4mm Bronze Twinwall Polycarbonate Sheet in the market, we considered we took a deep dive into 1991 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: