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GI Sheet Weight Calculator – Formula, Chart & How to Calculate GI Sheet Weight Accurately
Introduction to GI Sheet Weight Calculation
Galvanized Iron (GI) sheets are widely used in construction, ducting, fabrication, and industrial cladding due to their strength, corrosion resistance, and durability. Whether you’re a contractor or an industrial buyer, knowing the accurate weight of GI sheets is essential for logistics, cost estimation, and structural planning.
In this blog, we’ll guide you through the GI Sheet Weight Calculator, the formula used, weight per square foot/meter, and provide a handy thickness and gauge chart.
GI Sheet Weight Calculator
GI Sheet Weight Calculator
What is GI Sheet?
A GI sheet is a steel sheet coated with zinc to prevent rusting and corrosion. These sheets are commonly used in roofing, wall cladding, ductwork, and other fabrication works. GI sheets come in a variety of gauges (thickness levels) and sizes, and their weight depends on the material density and dimensions.
Why GI Sheet Weight Calculation is Important
- Helps in planning transportation cost
- Useful in estimating material cost
- Important for load-bearing calculations in fabrication
- Reduces wastage and improves procurement accuracy
GI Sheet Weight Formula
The standard formula to calculate the weight of GI sheet Weight (kg) = Length (m) × Width (m) × Thickness (mm) × 7.85
Here, 7.85 is the density of steel in g/cm³. Zinc coating weight is usually negligible for general weight calculations.
GI Sheet Weight per Square Foot (sq. ft)
Weight (kg/sq. ft) = Thickness (mm) × 0.785
Example:
A 1 mm thick GI sheet of 1 sq. ft area:Weight = 1 × 0.785 = 0.785 kg/sq. ft
GI Sheet Weight Chart (Thickness Wise)
| Thickness (mm) | Gauge No. | Weight per Sq. Meter (kg) | Weight per Sq. Ft (kg) |
|---|---|---|---|
| 0.5 | 26 | 3.925 | 0.365 |
| 0.8 | 22 | 6.28 | 0.584 |
| 1.0 | 20 | 7.85 | 0.729 |
| 1.2 | 18 | 9.42 | 0.875 |
| 1.5 | 16 | 11.77 | 1.093 |
| 2.0 | 14 | 15.7 | 1.46 |
Use this chart for quick weight estimation while planning your purchase.
Standard GI Sheet Sizes in India
| Standard Size (mm) | Equivalent in Feet | Area (Sq. m) | Area (Sq. ft) |
|---|---|---|---|
| 1000 x 2000 | 3.28 x 6.56 | 2.0 | 21.52 |
| 1220 x 2440 | 4 x 8 | 2.98 | 32 |
| 1500 x 3000 | 5 x 10 | 4.5 | 48.43 |
You can apply the formula or the chart above to any of these sizes to get the exact weight of a GI sheet.
How to Use the GI Sheet Weight Calculator
- Measure the length, width, and thickness of your sheet.
- Use the formula or chart to get the weight per sheet.
- Multiply by the number of sheets to get the total weight.
You can also build a spreadsheet or use online calculators with predefined formulas to simplify bulk calculations.
Applications of GI Sheets in Industries
GI sheets are extensively used in industries where hygiene, corrosion resistance, and structural integrity are critical. For instance, in the dairy and pharmaceutical industry, stainless steel components such as:
…are used along with GI sheets for process piping and structural setups.
Other Stainless Steel Components You May Need
If you are working with GI or stainless steel structures, you might also consider the following products from Mahadev Dairy Pharma Fittings:
- SS WYE LOOP
- TC Clamp
- Pipe Reducer
- SS Pipe Holder
- Stainless Steel Bend
- J Bend Supplier
- SS TC Fittings
- Seamless Tee
These fittings ensure high-quality jointing and hygiene in stainless steel pipeline systems.
Conclusion
Understanding the weight of GI sheets is crucial for proper procurement, fabrication planning, and cost estimation. Whether you’re a contractor or industrial buyer, using a GI Sheet Weight Calculator ensures that you’re always accurate and efficient in planning. Pair it with the right stainless steel fittings to build strong and hygienic systems for your dairy, pharma, or industrial projects.
For more details on fittings and process components, visit our complete product range at Mahadev Dairy Pharma Fittings.
FAQs
Q1. What is the density of GI sheet?
It is approximately 7.85 g/cm³ (same as steel), as the zinc coating is usually negligible in weight calculations.
Q2. How much does a 4×8 GI sheet weigh?
For 1 mm thickness, a 4×8 ft sheet (32 sq. ft) weighs about 25.1 kg (32 × 0.785).
Q3. Is the zinc coating included in the weight?
Generally no, for rough calculations it’s ignored. But in precision applications, zinc coating weight may be added.
Q4. Where are GI sheets used?
In construction roofing, ducting, wall cladding, auto body panels, and industrial applications.
Q5. Can I use this calculator for stainless steel sheets too?
Yes, but you should change the density to 8.0 or higher depending on the stainless steel grade (like SS304, SS316).
