Twin & Triple Wall Polycarbonate Sheets – 4x8 FT Greenhouse Panels | 4mm, 8mm, 16mm Honeycomb Thickness

1.2 m x 2.4 m (4 ft x 8 ft) Polycarbonate Greenhouse Sheets (Multiple Thicknesses)

Get your greenhouse, shop roof, or outdoor shelter covered with these heavy-duty polycarbonate sheets. Built to handle harsh outdoor weather and provide serious insulation, these rigid panels easily outperform brittle fiberglass and cheap plastic. Whether you are replacing blown-out greenhouse panels or building a custom outdoor shelter from scratch, these boards give you structural strength and excellent light transmission. We stock these heavy-duty building materials at wholesale prices to ensure you get real value for the dollar on your shop and farm projects.

Key Features:

• Heavy-Duty Build: Made from rigid, impact-resistant EM Plastic Hi-Core polycarbonate that will not shatter, rust, or rot like standard building materials.
• High Insulation: Available in standard 2-layer configurations or specialized 3-layer honeycomb designs to trap heat and regulate temperatures inside your greenhouse.
• Weather Resistant: Treated for high UV resistance to prevent yellowing, warping, and degradation from direct sunlight over long-term outdoor exposure.
• Easy to Handle: Lightweight enough for one person to carry up a ladder and easy to cut and drill for custom DIY roofing and shelter framing.
• Multiple Thicknesses: Choose from standard 4 mm (0.16") sheets up to thick 14 mm (0.55") honeycomb panels to match your exact structural and climate needs.

Specifications:

• Sheet Dimensions: 1.2 m x 2.4 m (4 ft x 8 ft)
• Material: Rigid, impact-resistant polycarbonate
• Structure Options: 2-Layer (Regular) or 3-Layer (Honeycomb)
• Available Thicknesses: 4 mm (0.16"), 8 mm (0.31"), and 14 mm (0.55")

Available Models & SKUs:

SKU	Dimensions	Configuration & Thickness
GH48GH4	1.2 m x 2.4 m (4 ft x 8 ft)	2-Layer Regular Polycarbonate - 4 mm (0.16") Thick
GH48GH8	1.2 m x 2.4 m (4 ft x 8 ft)	2-Layer Regular Polycarbonate - 8 mm (0.31") Thick
GH48HC8	1.2 m x 2.4 m (4 ft x 8 ft)	3-Layer Honeycomb Polycarbonate - 8 mm (0.31") Thick
GH48HC14	1.2 m x 2.4 m (4 ft x 8 ft)	3-Layer Honeycomb Polycarbonate - 14 mm (0.55") Thick

Perfect For:

• Commercial greenhouses and backyard garden structures
• Replacing old, brittle fiberglass roofing and skylights
• Building durable outdoor shelters and bus boards
• Anyone needing high-insulation, weatherproof building panels at budget-friendly prices