What size does aluminum sheet come in encompass three core dimensions: thickness, width and length. The specific ranges and common specifications are as follows:

1. Thickness Range (Unit: mm)
Aluminum sheet thicknesses span a wide range, covering the full range of requirements from ultra-thin to ultra-thick:
- Ultra-thin aluminum foil: 0.009-0.2mm (e.g., food packaging foil, battery cell foil);
- Thin aluminum sheet: 0.1-6mm (decorative panels, automotive cladding, air conditioning foil);
- Medium thick aluminum plate: 6-200mm (pressure vessels, ship decks, molds);
- Extra thick aluminum plate: 200-600mm (large machinery bases, aerospace structural components).
Thickness of aluminum sheet references for specific application scenarios:
- Architectural curtain walls: 1.5-4.0mm (2.5-3.0mm is commonly used for outdoor use, and can be as thin as 1.0mm for indoor use);
- Automotive bodies: 0.8-2.0mm (5182/6016 alloy for doors and hoods);
- Aerospace: 1.0-5.0mm (7021-T6 container board) or 0.15-500mm (7075-T651 super-duraluminum sheet).

2. Width Range (Unit: mm)
Aluminum sheet widths are limited by production equipment and processes. The mainstream ranges are as follows:
- Coils: 600-2000mm (standard width), with some production lines extending up to 2650mm ;
- Sheet plates: 800-2800mm (standard width), with custom widths up to 3500mm (according to GB/T 3880.1-2012);
- Narrow Strips: 20-600mm (for automotive battery casings and cable wrapping tape).
Typical Application Width Examples:
- Architectural Curtain Walls: Widths of 1.5m or less are preferred (raw material coils are commonly 1.5-2.4m);
- Insulation Materials: 500-1000mm (for ease of installation and cutting);
- Traffic Signs: Bottom Channel Width 5-10cm (6063 alloy aluminum angle).

3. Length Range (Unit: mm)
Aluminum sheet lengths can be flexibly customized and are primarily categorized into two types:
- Coils: Lengths are typically measured in coils, with common lengths of 50m, 100m, and 200m (e.g., anti-corrosion aluminum coils and color-coated aluminum coils);
- Flat sheets: 2000-16000mm (standard length), with custom lengths up to 18 meters possible (e.g., extra-wide sheet for ships).
Special Length Requirements:
- Automotive wheel hub sheets: Lengths up to 6000mm (6061 alloy);
- Airline container sheets: 1000-6000mm (7021-T6);
- Architectural decorative panels: Maximum length 1500×4000mm (curtain wall aluminum veneer).

4. Common Aluminum Sheet Standard Sizes (Unit: mm)
The aluminum sheet industry has established a highly versatile standard size system:
- International Standard: 1220 x 2440 mm (4 x 8 feet, compatible with most processing equipment);
- Domestic Mainstream: 1500 x 3000 mm, 1250 x 2500 mm (commonly used in construction and industrial applications);
- Special Customization: 1200 x 3800 mm, 1800 x 6000 mm (needs to be discussed with the manufacturer in advance).
Common Coil Specifications:
- Thickness 0.3-3.0 mm, Width 600-2000 mm (for anti-corrosion and thermal insulation);
- Thickness 0.02-1.2 mm, Width 600-1370 mm (for color-coated/embossed aluminum coils).
Aluminum tread plate dimensions:
- Thickness 0.8-12mm, Width 1000-1900mm (anti-slip aluminum plate, such as five bar and orange peel patterns);
- Typical specifications: 1000×2000mm, 1250×2500mm (stock available in warehouse).

5. Key Notes
Differences between aluminum sheet standard size and custom-made:
- The national standard (GB/T 3880.1-2012) specifies thicknesses ≤ 250mm and widths ≤ 3500mm, but in actual production, plates as thick as 600mm can be achieved through hot rolling.
- International standards (such as ASTM B209) cover thicknesses 0.2-400mm and widths ≤ 2800mm, making them suitable for export projects.
Size Selection Basis:
- Strength Requirement: 7075 super-hard aluminum sheet (for aviation) is typically ≥10mm thick, while 1000 series pure aluminum sheet (for decorative applications) is typically 0.5-3mm thick.
- Processing Technology: Deep-drawn parts require O-grade thin aluminum sheet (thickness ≤2mm), while structural parts typically use H-grade medium-thick aluminum sheet (3-20mm).
- Cost Control: Standard sizes (e.g., 1220×2440mm) are cheaper than custom sizes. Special specifications incur an additional processing fee.
Special Form Dimensions:
- Aluminum Discs: Diameter Φ100-1250mm, Thickness 0.4-10mm (for end caps and bottle caps).
- Corrugated Aluminum Sheet: Thickness 0.3-1.5mm for building roofing).
- Coated Aluminum Sheet: Width ≤1370mm (limited by color coating process), Length ≤6000mm (oversize for transportation).

The aluminum sheet size is highly flexible, covering a full range of requirements, from micron-level aluminum foil to ultra-thick aluminum plates half a meter thick. When selecting a sheet, consider the application (such as construction, automotive and aviation), processing techniques (stamping, bending, and welding), and cost budget. For special dimensions (such as widths greater than 2800mm and lengths greater than 16 meters), we recommend contacting the manufacturer like we Haomei Aluminum directly for customization.