GI Roofing Sheet common size analysis: meet the needs of diverse buildings


GI (Galvanized Iron) Roofing Sheet is widely used in the construction industry due to its excellent corrosion resistance, high strength and easy processing. GI roofing sheets of different sizes can meet the needs of different scenarios such as residential, industrial plants, warehouses, etc. The following are the common GI roofing sheet sizes on the market and their applicable scenarios.

Common size specifications
Thickness: 0.12mm–1.2mm, thinner sheets (0.12mm–0.5mm) are suitable for light buildings such as temporary sheds; thicker sheets (0.6mm–1.2mm) are suitable for long-term and durable industrial roofs.

Width: 600mm–1250mm, common specifications include 914mm, 1000mm, 1220mm, to meet different span requirements.

Length: Strong customization, common 1.8m–6m, some suppliers can provide sheets up to 12m long, reducing seams and improving waterproofness.

Main application scenarios
Residential buildings: thinner (0.3mm–0.5mm) and medium-width panels are suitable for pitched roofs.

Industrial plants: thicker (0.6mm–1.2mm) and large-size panels provide greater load-bearing capacity.

Agricultural facilities: rust-proof galvanized layer (Z275g/m²) is suitable for humid environments such as greenhouses and livestock sheds.

Market trends
With the development of green buildings, GI roof panels are favored for their recyclability and long life (20–30 years). In the future, the demand for customized sizes and higher zinc layers (such as Z350g/m²) is expected to grow.

Conclusion: Choosing the right GI roof panel size can optimize cost and performance. It is recommended to consider the building structure, climate conditions and budget comprehensively.