Where it's used
Zinc-coated for the outdoors — swipe through real settings for DX51D galvanised steel sheet.
Which thickness do you need?
Seven gauges from 0.6mm to 3mm. Tap a range to see what it's built for.
Sheet weight calculator
Check the weight before it arrives so you can plan handling and offload.
Calculated for DX51D mild steel (density 7.85 g/cm³); the zinc coating adds negligible weight. Approximate. The 3000 × 1500mm size is stocked in 0.9, 1.2, 1.5 and 3mm.
How many sheets do I need?
Cladding a wall or roof? We supply full sheets only (no cutting) — enter the area and we'll work out how many whole sheets it takes.
Based on your total area ÷ the sheet area, rounded up to whole sheets (we don't cut to size). Add a margin for offcuts and wastage — long or awkward shapes may need a little more.
Thickness & weight chart
| Thickness | Weight (kg/m²) | 8×4 sheet | 2m × 1m sheet |
|---|---|---|---|
| 0.6mm | 4.7 | ~14.7 kg | ~9.4 kg |
| 0.8mm | 6.3 | ~19.6 kg | ~12.6 kg |
| 1mm | 7.9 | ~24.5 kg | ~15.7 kg |
| 1.5mm | 11.8 | ~36.8 kg | ~23.6 kg |
| 2mm | 15.7 | ~49.1 kg | ~31.4 kg |
| 3mm | 23.6 | ~73.6 kg | ~47.1 kg |
- Grade: DX51D+Z hot-dip galvanised mild steel
- Coating: Zinc — corrosion-resistant on both faces
- Thicknesses: 0.6, 0.8, 1, 1.2, 1.5, 2 and 3mm
- Sizes: 2500 × 1250mm (8×4ft), 2000 × 1000mm (2m × 1m) & 3000 × 1500mm — supplied as full sheets
- Finish: Bright spangled zinc
- Cutting: Sold as full fixed sheets — not cut to size. Cuts, drills and folds with standard tools
Galvanised vs mild steel vs stainless
Galvanised gives you corrosion resistance at a fraction of stainless cost.
| Feature | Galvanised DX51D | Mild Steel | Stainless |
|---|---|---|---|
| Corrosion resistance | Good (zinc coated) | Low (untreated) | Excellent |
| Outdoor / exposed use | Ideal | Needs paint | Excellent |
| Cost | Low | Lowest | Highest |
| Weldability | Good (ventilate fumes) | Excellent | Specialist |
| Best for | Roofing, ducting, outdoor fabrication | Structural & fabrication | Hygiene, marine, finish |
Don't need corrosion resistance? See our mild steel sheet range.
Common uses
Our galvanised steel sheet — also known as galvanized steel sheet, galvanised sheet metal, galvanised metal sheet or galvanised steel plate — is supplied in DX51D grade, hot-dip zinc coated, in three sheet sizes: 8x4 (2500 x 1250mm), 2m x 1m (2000 x 1000mm) and large-format 3m x 1.5m (3000 x 1500mm). Zinc-coated for corrosion resistance, it is one of the most widely used materials in UK fabrication and construction, with a 3-5 working day lead time to mainland UK addresses.
Sizes Available
Choose your size and thickness above:
8x4 (2500 x 1250mm) — the standard full sheet, in seven gauges from 0.6mm to 3mm. The go-to size for UK cladding, ducting and fabrication.
2m x 1m (2000 x 1000mm) — the compact sheet, in 0.8mm to 3mm. Ideal for smaller panels, repairs and jobs where a full 8x4 isn't needed or won't fit.
3m x 1.5m (3000 x 1500mm) — large-format sheet in 0.9mm, 1.2mm, 1.5mm and 3mm, for bigger cladding and covers that would otherwise need joining.
Technical Specification
| Material | DX51D galvanised steel (hot-dip zinc coated) |
| Standard | EN 10346 |
| Sheet sizes | 8x4 (2500 x 1250mm), 2m x 1m (2000 x 1000mm), 3m x 1.5m (3000 x 1500mm) |
| Thicknesses available | 0.6mm - 3mm (8x4); 0.8mm - 3mm (2m x 1m); 0.9mm, 1.2mm, 1.5mm & 3mm (3m x 1.5m) |
| Weight | Approx. 14.7 kg (0.6mm 8x4) to 106 kg (3mm 3m x 1.5m) per sheet |
| Coating | Hot-dip zinc galvanised |
| Corrosion resistance | Good - suitable for outdoor and exposed use |
| Weldability | Weldable - use ventilation due to zinc fumes |
| Workability | Cuts, drills and folds with standard tools |
| Lead time | 3-5 working days (mainland UK; up to 10 to remote areas) |
Galvanised Steel Sheet Weight Chart
Approximate sheet weights by size and gauge. Weights calculated from published sheet densities (mild/galvanised steel 7.85, 304 stainless 7.90, aluminium 2.71 g/cm³) to BS EN 10088 / EN standard figures. A dash means that gauge is not stocked in that sheet size.
| Thickness | Weight (kg/m²) | 8x4 (2500 x 1250mm) | 2m x 1m (2000 x 1000mm) | 3m x 1.5m (3000 x 1500mm) |
|---|---|---|---|---|
| 0.6mm | 4.71 kg/m² | 14.7 kg | — | — |
| 0.8mm | 6.28 kg/m² | 19.6 kg | 12.6 kg | — |
| 0.9mm | 7.06 kg/m² | — | — | 31.8 kg |
| 1mm | 7.85 kg/m² | 24.5 kg | 15.7 kg | — |
| 1.2mm | 9.42 kg/m² | 29.4 kg | 18.8 kg | 42.4 kg |
| 1.5mm | 11.78 kg/m² | 36.8 kg | 23.6 kg | 53.0 kg |
| 2mm | 15.7 kg/m² | 49.1 kg | 31.4 kg | — |
| 3mm | 23.55 kg/m² | 73.6 kg | 47.1 kg | 106.0 kg |
Common Uses
Galvanised steel sheet (galvanized sheet metal) is used for roofing and cladding, HVAC ductwork, gutters and flashing, construction panels, agricultural repairs, trailer work, garden structures, workshop fabrication, protective covers, enclosures, gates and general sheet metal projects. It is the standard choice where untreated mild steel would need additional rust protection.
Zinc Coated Finish
These sheets are hot-dip galvanised with a DX51D zinc coating to protect against rust and weathering. The surface may show normal zinc spangle patterning, handling marks or slight visual variation, which is typical of galvanised steel. Cut edges or drilled holes expose bare steel and should be protected with a zinc-rich paint or coating for long-term corrosion resistance.
Galvanised Sheet vs Mild Steel Sheet
Galvanised steel sheet has a zinc coating that resists corrosion, making it suitable for outdoor and exposed applications without additional painting. Mild steel sheet is supplied in untreated mill finish and is better suited to indoor fabrication or work that will be painted or enclosed. For damp, outdoor or exposed environments, galvanised is the more appropriate choice.
Matching Galvanised Sections
Building an outdoor frame, gate or structure? Pair the sheet with our matching hot-dip galvanised sections: galvanised box & rectangular section, galvanised angle, galvanised tube, galvanised square bar and galvanised flat bar — all zinc-coated for outdoor durability.
Compare Our Full Sheet Metal Range
Not sure which sheet is right for your job? Compare the full Rackerman sheet metal range:
- Mild steel sheet & plate — CR4 cold-rolled and S275 structural plate
- Zintec sheet — electro-zinc coated, smooth and paint-ready
- 304 stainless steel sheet — 2B finish
- 304 stainless steel sheet — 240 grit brushed
- 304 stainless steel sheet — mirror finish
- Aluminium sheet — 1050 H14
- Aluminium chequer plate
- Mild steel durbar / checker plate
Need to convert gauge or estimate weight? See our sheet metal gauge to mm chart and metal weight calculator.
Cutting and Fabrication
Galvanised steel sheet can be cut, drilled, folded and fabricated using standard metalworking tools. When welding, grinding or heating galvanised steel, correct ventilation and safety precautions are essential because fumes from the zinc coating can be hazardous.
Delivery Information
Lead times are currently 3-5 working days for mainland UK, with a maximum of 10 working days to remote areas. Mainland UK delivery only. Sheets are heavy items - please ensure suitable access is available for delivery. Larger sheets may require assistance with unloading.