Polycarbonate Sheets

Polycarbonate Panels for Greenhouse Construction

Polycarbonate is the best all-around greenhouse glazing for most growers: it resists impact up to 200x better than glass, insulates far better than single-pane glass, and weighs a fraction as much. Greenhouse Megastore carries clear, opal, and diffused polycarbonate panels in 6mm to 16mm twin-wall and multiwall constructions for hobby greenhouses, commercial structures, carports, and patio covers, all UV-protected and backed by our Low Price Guarantee.

Why Choose Polycarbonate Sheets

Polycarbonate is up to 250x more impact-resistant than tempered glass and insulates far better, while staying easy to cut, drill, and shape for custom greenhouse roofing, windows, and sidewalls. Twinwall and multiwall panels trap insulating air layers that hold steadier growing temperatures and diffuse light evenly across the canopy.

• Twinwall Polycarbonate Panels: Two air-trapping layers cut heat loss and lower energy costs versus single-wall glazing.
• Multiwall Polycarbonate Sheets:Extra walls raise the R-value further, built for larger structures and colder climates.
• Clear maximizes light, opal reduces hot spots, diffused spreads coverage evenly — pick by plant and climate need.