Description
Clear Multiwall Polycarbonate Sheets are available in two thicknesses: 6mm (.236") and 16mm (.629"). Both thicknesses are available in standard 48" × 96" sheets and cut-to-size options for custom dimensions up to 48" × 96".
Clear Multiwall Polycarbonate features a revolutionary hollow, ribbed structure with multiple walls that provide exceptional thermal insulation and impact resistance. Also known as twinwall or cellular polycarbonate, this lightweight material is the premier choice for greenhouse glazing, offering superior thermal efficiency compared to glass while maintaining excellent light transmission for optimal plant growth.
Perfect for spring greenhouse projects and year-round growing, multiwall polycarbonate is up to 200 times stronger than glass while weighing 50% less. The internal air chambers provide outstanding insulation, reducing heating costs by up to 30% compared to single-wall materials. UV-protected on both sides to prevent yellowing, this material diffuses sunlight evenly to eliminate hot spots that can damage plants, making it the professional grower's choice for productive greenhouse environments.
Features
- Up to 200 times stronger than glass - virtually unbreakable
- Superior thermal insulation reduces heating costs by up to 30%
- 50% lighter than glass for easier installation
- Optimal light diffusion prevents plant-damaging hot spots
- UV-protected on one side with 15+ year warranty
- Impact and hail resistant - won't shatter like glass
- Condensation control channels for greenhouse applications
- Easy installation with standard polycarbonate profiles
- Excellent for year-round growing and season extension
- Fire-rated and meets building codes for most applications
Applications of Clear Multiwall Polycarbonate
- Greenhouse glazing and growing structures
- Garden cold frames and season extenders
- Skylights and roof panels
- Patio covers and sunrooms
- Pergola roofing and outdoor living spaces
- Carport and shed roofing
- Pool and spa enclosures
- Canopies and walkway covers
- Agricultural and commercial growing facilities
- Sound barriers and privacy screens
Available Sizes & Options
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6mm (.236") Thickness - Twin Wall
Standard Size: 48" × 96"
Cut-to-Size: Available up to 48" × 96"
R-Value: Approximately 1.6
Most popular thickness for hobby greenhouses, cold frames, and residential applications
16mm (.629") Thickness - Multi Wall
Standard Size: 48" × 96"
Cut-to-Size: Available up to 48" × 96"
R-Value: Approximately 2.5
Maximum insulation for harsh climates, commercial growing, and energy-efficient structures
🌱 Spring Greenhouse Season Special
- Perfect timing: Start your growing season with professional-grade glazing
- Energy savings: Reduce heating costs for early spring and late fall growing
- Plant protection: Eliminate harmful hot spots that damage seedlings
- Year-round growing: Extend your season with superior insulation
Planning a greenhouse project? Call 844-970-0650 for expert guidance on thickness selection and installation tips.
Custom Cut-to-Size Options
- Custom widths: Any size from 1" up to 48"
- Custom lengths: Any size from 1" up to 96"
- Available in both thicknesses listed above
- Precision cutting to your exact specifications
- Fast turnaround: Most orders ship within 3-5 business days
Need custom sizes? Select the "Cut-to-Size" tab above for instant pricing, or call 844-970-0650 for volume quotes.
Additional Thicknesses & Accessories
Need 8mm, 10mm, 20mm, or 25mm thickness? We can source specialty thicknesses and matching H-profiles, U-channels, and ridge caps for complete installations. Request a custom quote or call 844-970-0650 for project consultation.
Frequently Asked Questions
What thickness multiwall polycarbonate is best for greenhouses?
6mm is ideal for hobby greenhouses in mild climates, offering good insulation and affordability. 16mm is best for commercial growing or harsh climates where maximum energy efficiency is needed. Consider your local climate, heating costs, and growing season when choosing between these two thicknesses.
How much can multiwall polycarbonate reduce greenhouse heating costs?
Multiwall polycarbonate can reduce heating costs by 30-50% compared to single-pane glass or plastic. The insulating air chambers provide R-values from 1.6 (6mm) to 2.5+ (16mm), significantly reducing heat loss. Many growers see payback on the material cost within 2-3 years through energy savings alone.
Does multiwall polycarbonate work well for plant growth?
Yes, multiwall polycarbonate is specifically designed for growing applications. It provides 80-90% light transmission while diffusing sunlight to eliminate hot spots that can burn plants. The UV protection allows beneficial light through while blocking harmful rays. Professional growers choose multiwall polycarbonate for consistent growing conditions and healthier plants.
How do I prevent condensation in multiwall polycarbonate greenhouse panels?
Proper installation is key: install with flutes running vertically for drainage, use breather tape on the top edge, and seal the bottom edge to prevent moisture entry. Ensure adequate greenhouse ventilation to control humidity. Quality multiwall polycarbonate has condensation channels designed to direct moisture to the edges where it can drain away.
How long does multiwall polycarbonate last in greenhouse applications?
Quality UV-protected multiwall polycarbonate typically lasts 15-20 years in greenhouse applications. The UV coating prevents yellowing and degradation, while the impact-resistant material won't crack or shatter like glass. Many manufacturers offer 10-year warranties against yellowing and loss of light transmission.
Customer Reviews
Perfect for my hobby greenhouse
Replaced old fiberglass panels with 6mm multiwall polycarbonate. The difference is amazing - much brighter inside but no more hot spots burning my tomato plants. Heating bills dropped noticeably too. Installation was straightforward with the right profiles.
Excellent insulation for cold climate
Used 16mm thickness for my greenhouse in Minnesota. Even with brutal winters, I can grow year-round now. The insulation is incredible compared to what I had before. Worth every penny for the energy savings and extended growing season.
Great for hot climate gardening
The light diffusion really helps in our intense Arizona sun. Plants don't get scorched like they did with clear plastic. Cut-to-size service was exactly what I needed for my custom greenhouse project. Only issue was longer shipping time than expected.
Professional quality for commercial use
Running a small commercial greenhouse operation and this 16mm multiwall is fantastic. Incredible insulation properties and the light transmission is perfect for consistent plant growth. Customer service was knowledgeable about installation requirements.
Much better than glass for greenhouse
Converted from glass to 6mm multiwall after hail damage. So glad I made the switch - warmer in winter, cooler in summer, and I don't worry about breakage anymore. Plants are thriving with the diffused light.
