
Accurately knowing metal thickness is fundamental for engineering, fabrication, design, and DIY projects. The gauge system, while widespread, can cause confusion, especially when comparing different metals. As Huaxiao-Alloy, your trusted source for premium aluminum products, we understand that precise specifications like 22 gauge aluminum thickness are critical for selecting the right material. This guide cuts through the complexity to give you clear, actionable information.
What is the Actual Thickness of 22 Gauge Aluminum?
Unlike steel gauges which have separate standards (USS, Manufacturers’), aluminum sheet gauges primarily adhere to the American Wire Gauge (AWG) / Brown & Sharpe (B&S) scale. This means there’s a direct correspondence between gauge number and thickness in inches or millimeters.
For 22 gauge aluminum sheet:
- 22 gauge aluminum thickness = 0.0253 inches
- 22 gauge aluminum thickness = 0.643 millimeters

Huaxiao-Alloy is a globally recognized supplier and manufacturer of 7075 aluminum alloy, the gold standard for ultra-high-strength applications. Renowned for its zinc-magnesium-copper composition, 7075 alloy is engineered for aerospace, military, and high-performance engineering industries. We provide all standard tempers (T6, T651, T7351) in plates, sheets, bars, rods, and custom profiles.

Huaxiao-Alloy is a global authority in 7000 series aluminum alloys, supplying premium grades such as 7075, 7050, 7046, 7010, 7049, and others. Renowned for their zinc-magnesium-copper compositions, our alloys deliver unmatched strength-to-weight ratios, fatigue resistance, and toughness for aerospace, defense, and high-performance engineering applications.
Key Aluminum Gauge Thickness Comparison Table
Gauge Number | Aluminum Thickness (inches) | Aluminum Thickness (mm) | Common Uses & Notes |
---|---|---|---|
10 Ga | 0.1019 in | 2.588 mm | Heavy structural parts, armor |
12 Ga | 0.0808 in | 2.052 mm | Machinery parts, tanks (how thick is 12 gauge aluminum) |
14 Ga | 0.0641 in | 1.628 mm | 14ga aluminum thickness, chassis, truck parts, sinks (14 gauge aluminum sheet metal) |
16 Ga | 0.0508 in | 1.291 mm | 16 gauge aluminum thickness, truck/trailer panels, cabinets |
18 Ga | 0.0403 in | 1.024 mm | 18 gauge aluminum thickness, auto body panels, trim |
20 Ga | 0.0320 in | 0.813 mm | Thickness of 20 gauge aluminum, ductwork, light containers |
22 Ga | 0.0253 in | 0.643 mm | 22 gauge aluminum sheet metal, intricate shapes, backing panels, crafts (22 ga sheet metal thickness) |
24 Ga | 0.0201 in | 0.511 mm | How thick is 24 gauge aluminum?, packaging, displays |
26 Ga | 0.0159 in | 0.404 mm | Foil-backed insulation, packaging |
- Note: Gauge aluminum thickness decreases as the gauge number increases. Is 22 gauge thicker than 18? No, 18 gauge is thicker. Is 22 gauge thicker than 20? No, 20 gauge is thicker. Is 22 gauge thicker than 24? Yes.
- Decimal/Fractional Equivalents: 22 gauge to inches is 0.0253″. 22 gauge to mm is 0.643mm. 22ga in inches often confuses with fractions – 0.0253″ is very close to 1/40 of an inch (0.025″), not a common fraction.
- Steel Comparison (Approximate): 22 gauge vs 16 gauge steel? 22ga aluminum is significantly thinner than 16ga steel (approx 1.52mm vs 0.64mm). Steel gauges are defined separately (steel sheet metal gauge thickness).
Why is the 22 Gauge Standard Important for Aluminum?
The consistent AWG/B&S scale for aluminum ensures clarity and predictability. Knowing that 22 gauge aluminum sheet always corresponds to 0.0253 inches (0.643 mm) allows designers and engineers to make precise calculations for:
- Weight: Easily calculate using density (approx 0.098 lbs/cu in or 2.7 g/cu cm).
- Strength & Rigidity: Predict performance characteristics based on thickness and alloy.
- Bending & Forming: Determine bend radii and tooling requirements (vehicle sheet metal thickness, decorative).
- Compatibility: Ensure consistency across orders and suppliers (standard aluminum sheet thickness).
Common Applications of 22 Gauge Aluminum
22 gauge aluminum’s thin profile makes it ideal for projects requiring light weight, significant formability, and sufficient strength for non-structural applications. Huaxiao-Alloy supplies high-quality 22ga sheet and custom fabrications for:
- Automotive & Transportation: Interior trim panels, under-hood non-heat shields, speaker backing plates, decorative overlays (vehicle sheet metal thickness).
- HVAC: Light-duty ductwork extensions, register boxes, vent collars, protective covers over insulation.
- Construction: Flashing details, architectural soffit liners, light-duty gutter components, signage backing, decorative cladding elements.
- Electronics & Enclosures: Light-duty chassis or box panels, RFI shielding covers, backing boards for control panels.
- Arts, Crafts & Prototyping: Model building, decorative sculptures, jewelry forms, prototyping parts where minimal weight or high formability is needed (aluminum sheet thicknesses, hobbyist).
- Packaging: Sturdy display boxes, protective trays, or inserts. (Note: Packaging often uses even lighter gauges like 24ga or custom solutions).
Choosing the Right Alloy for 22 Gauge Aluminum
The thickness is only part of the story. Alloy choice significantly impacts performance:
- 3003-H14: The most common general-purpose alloy. Excellent formability, weldability, and corrosion resistance. Ideal for most decorative, roofing, flashing, and HVAC applications where moderate strength suffices (gauge aluminum thickness, aluminum sheet gauge).
- 5052-H32: Stronger than 3003, better fatigue strength, very good formability and corrosion resistance. Perfect for more demanding applications like light truck/trailer interiors requiring extra dent resistance or repeated loading (heavy gauge aluminum perception for thinner sheet).
- 6061-T6: Primarily used for structural components. While available in sheet, its superior strength makes it less formable than 3003 or 5052 at the same gauge. Often better suited for thicker gauges or extrusions. Not typically chosen for complex shapes in 22ga.

Huaxiao-Alloy is a globally recognized supplier and manufacturer of 7075 aluminum alloy, the gold standard for ultra-high-strength applications. Renowned for its zinc-magnesium-copper composition, 7075 alloy is engineered for aerospace, military, and high-performance engineering industries. We provide all standard tempers (T6, T651, T7351) in plates, sheets, bars, rods, and custom profiles.

Huaxiao-Alloy is a global authority in 7000 series aluminum alloys, supplying premium grades such as 7075, 7050, 7046, 7010, 7049, and others. Renowned for their zinc-magnesium-copper compositions, our alloys deliver unmatched strength-to-weight ratios, fatigue resistance, and toughness for aerospace, defense, and high-performance engineering applications.
Huaxiao-Alloy: Your Trusted Source for Precise Gauge Aluminum Sheet
Navigating metal gauge dimensions and finding consistent, high-quality material shouldn’t be complicated. Huaxiao-Alloy is your expert partner for all aluminum needs, from standard aluminum sheet metal thicknesses like 22ga to custom cuts and alloys.
- Precision Stock: We maintain tight tolerances on 22 gauge aluminum sheet (as well as 12 gauge aluminum thickness, 16ga, 20ga, 24ga, and more). No surprises on actual gauge thickness to inches conversion.
- Alloy Expertise: Need aluminum gauge thickness in 3003, 5052, or another alloy? Our team advises on the best material for your specific sheet aluminum thickness requirement.
- Custom Fabrication: We offer precise shearing, CNC routing, bending, and forming services for your 22 gauge aluminum sheet metal projects. Go beyond just buying sheet metal near me.
- Quality Guaranteed: Rigorous inspection ensures every sheet meets thickness (aluminum thickness gauge standards) and quality expectations. Get reliable thickness of aluminum sheet.
- Competitive Value: Cost-effective solutions for small prototypes or large production runs of standard aluminum sheet metal thickness items. Avoid retail markups from sources like Menards aluminum sheet metal.
- Reliable Supply & Logistics: Get the gauge aluminum sheet you need, when you need it.
A: 22 gauge aluminum thickness is precisely 0.0253 inches or 0.643 millimeters according to the standard aluminum AWG/B&S gauge scale. (22 gauge in inches, 22 gauge to inches, how thick is 22 gauge).
A: 22ga aluminum is much thinner than 22ga steel! Steel gauges (like USS) define different thicknesses. Approximate equivalents: 22ga stainless steel thickness or 22ga steel thickness is around 0.0306″ (0.78mm), about 20% thicker than 22ga aluminum. Always confirm the material’s standard. (22ga stainless steel thickness, 22 gauge stainless).
A: 22 gauge aluminum = 0.643 millimeters. “22g” is often shorthand for 22 gauge, so 22g in mm means the same thing.
A: No, 18ga (1.024mm) and 20ga (0.813mm) aluminum are thicker. Yes, 22ga is thicker than 24ga aluminum (0.511mm). Remember: higher gauge number = thinner metal (is 22 gauge thicker than 18, is 22 gauge thicker than 20).
A: AWG defines wire diameters. 22 gauge aluminium wire has a nominal diameter of 0.0253″ (0.643mm) – identical to the thickness of 22ga sheet. Gauge refers to the linear dimension.
A: Strength depends heavily on alloy and temper. In general, 22ga aluminum is quite thin and suitable for non-structural applications like interior panels (vehicle sheet metal thickness), trim, flashing, light enclosures, signs, and crafts. If structural integrity or significant loads are involved, a thicker gauge (14ga aluminum thickness, 12ga aluminum thickness) or stronger alloy may be needed. See the “Common Applications” section above.
A: Absolutely! We stock 22 gauge aluminum sheet in popular alloys (like 3003-H14 and 5052-H32) and offer custom sizing and fabrication services. Contact us for specific pricing and availability. Get the precise sheet metal gauge dimensions you require.
A: No. 0.032 aluminum thickness refers to 0.032 inches, which is approximately 20 gauge aluminum (0.0320″). 22 gauge aluminum (0.0253″) is thinner.. (.032 aluminum gauge, .032 aluminum)).
A: Use the standard: 22ga Al = 0.0253″ / 0.643mm. See our table for other conversions (gauge sheet metal to inches, convert gauge to mm sheet metal, aluminum gauge thickness in mm). Use inches to mm calculators for 22inch to mm or other conversions.
A: Weight depends on the alloy density. For 3003 aluminum (approx. 0.098 lb/cu in), 22ga (0.0253″ thick) weighs about 0.295 lbs per square foot. (aluminum weight per sq ft).
Conclusion: Choose Huaxiao-Alloy for Precision 22 Gauge Aluminum
Knowing the thickness of 22 gauge aluminum sheet (0.0253″ / 0.643mm) is the first step to successful project execution. This versatile gauge offers an optimal blend of lightweight properties, cost-effectiveness, and formability for a wide range of applications – as long as its thin profile aligns with your structural requirements.
Partner with Huaxiao-Alloy for all your precision gauge aluminum needs. We supply high-quality 22 gauge aluminum sheet, offer expert guidance on alloy selection and metal gauge dimensions, and provide value-added services like precision cutting and bending. Don’t settle for generic suppliers. Contact Huaxiao-Alloy today for a competitive quote and experience the difference expertise and premium materials make in your fabrication success. Get the right thickness of aluminum sheet, every time.