GI Plain Sheets are flat, zinc-coated iron/steel sheets manufactured through continuous galvanizing lines to provide corrosion resistance, formability, durability, and long service life.

Unlike corrugated or profile sheets, GI Plain Sheets are un-profiled, offering a smooth flat surface ideal for cutting, bending, welding (edge fabrication), and forming into custom shapes like ridge flashings, gutters, corner panels, end caps, trims, and insulation backing supports.

Commonly used across:

• Industrial shed fabrication
• Residential roofing accessories
• Construction propping roofs
• Architectural metal bending
• Rainwater and moisture-exposed applications

These sheets perform extremely well in humid, rainy, and non-saline outdoor environments, especially when installed or fabricated with washers and protective overlaps.

Key Features

✔ 100% galvanized flat sheet (no profile)

✔ Rust & corrosion resistant zinc coating

✔ Lightweight, strong, durable

✔ Easy cutting & bending, fabrication-friendly

✔ Can be formed into ridges, trims, gutters

✔ Suitable for roof underlay backing & insulation installs

✔ Minimal maintenance

✔ Outdoor durable

Applications

• Ridge and flashing fabrication
• Trims and end caps
• Rainwater gutters manufacturing
• Roofing base fabrication
• Sidewall cladding panels
• Ducting, partitions, and prefab roofs
• Cabins, canopy roofs, warehouses
• Wind-driven rain and roof underlay support tops

Technical Specifications: 

Benefits

• Longer life than acrylic sheets for under-roof backing
• No swelling/rot like plywood
• Non-brittle and fabrication-friendly
• Best for Sheeting trims, flashings, and gutters