14 Gauge Steel Thickness: SS & Aluminum Sheet Measurements (mm & inches)

by AMC

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Posted on August 02, 2024 at 12:40 PM

Gauge Measurement Overview

Gauge is a widely used system for measuring the thickness of metal sheets, essential in manufacturing, fabrication, and construction. The gauge number corresponds to the thickness of the sheet and influences its strength.
For instance, 14 gauge steel has a thickness of 0.0747 inches or 1.9 mm.

Key Details:

• 14 Gauge Steel Thickness:
• Inches: 0.0747 in
• Millimeters: 1.9 mm

Measurement Units:

• Millimeters (mm): Common in many countries and industries.
• Inches (in): Preferred in the US, especially for compliance and application purposes.

Terminology:

• Gauge vs. Gage: Both terms are used interchangeably, with "gage" being an alternative spelling.

Applications:

• Gauge measurements help in selecting the right material thickness for various applications, ensuring compliance with industry standards and requirements.

Thickness of 14 Gauge Stainless Steel, Mild Steel, and Aluminum Sheet in both Millimeters and Inches

Material	Thickness (mm)	Thickness (inch)
14 Gauge Stainless Steel	1.90	0.0747
14 Gauge Mild Steel	1.90	0.0747
14 Gauge Aluminum	1.90	0.0747

14 Gauge Sheet Metal Thickness

1. Steel:
• Stainless Steel: 0.0781 inches (2.0 mm)
• Mild Steel: 0.0747 inches (1.9 mm)
2. Aluminum:
• Thickness: 0.0641 inches (1.6 mm)

Notes:

• Variations: The thickness can slightly vary depending on the type of material, its grade, and any additional processing like coatings.
• Regional Differences: Local suppliers or manufacturers may have slight variations in thickness measurements.

14 Gauge Sheet Metal Thickness in Inch & Mm

Material	Inch	mm
14 gauge stainless steel sheet thickness	0.0781	1.984
14 ga aluminium sheet thickness	0.0641	1.628
14 gauge carbon steel sheet thickness	0.0747	1.897
14 ga galvanized sheet thickness	0.0785	1.994
14 gauge copper sheet thickness	0.083	2.108
14 ga brass sheet thickness	0.06408	1.628

14 Gauge Steel Thickness Tolerance

Grade	Inch	Tolerance
14 gauge stainless steel sheet tolerance	0.0781	0.004
5052 H32 14 gauge aluminium sheet tolerance	0.0641	± 0.0040″ 0.10mm
14 gauge carbon steel sheet tolerance	0.0747	0.0817 0.0677

14 Gauge Sheet Weight Chart

			Weight Per Area
Material	Inch	mm	Ib/ft²	kg/m²
14 gauge stainless steel sheet thickness	0.0781	1.984	3.250	15.869
14 ga aluminium sheet thickness	0.0641	1.628	0.905	4.417
14 gauge carbon steel sheet thickness	0.0747	1.897	3.047	14.879
14 ga galvanized sheet thickness	0.0785	1.994	3.202	15.636

14 Gauge Vs 16 Gauge Sheet Metal

Gauge (ga)	Steel Thickness (in.)	Steel Thickness (mm)	Aluminum Thickness (in.)	Aluminum Thickness (mm)
3	0.2391	6.07	0.2294	5.83
4	0.2242	5.69	0.2043	5.19
5	0.2092	531	0.1819	4.62
6	0.1943	4.94	0.162	4.11
7	0.1793	4.55	0.1443	3.67
8	0.1644	4.18	0.1285	3.26
9	0.1495	3.80	0.1144	2.91
10	0.1345	3.42	0.1019	2.59
11	0.1196	3.04	0.0907	2.30
12	0.1046	2,66	0.0808	2.05
13	0.0897	2.28	0.072	1.83
16	0.0598	1.52	0.0508	1.29
17	0.0538	1.37	0.0453	1.15
18	0.0478	1.21	0.0403	1.02
19	0.0418	1.06	0.0359	0.91
20	0.0359	0.91	0.032	0.81
21	0.0329	0.84	0.0285	0.72
22	0.0299	0.76	0.0253	0.64
23	0.0269	0.68	0.0226	0.57
24	0.0239	0.61	0.0201	0.51
25	0.0209	0.53	0.0179	0.45
26	0.0179	0.45	0.0159	0.40
27	0.0164	0.42	0.0142	0.36
28	0.0149	0.38	0.0126	0.32
29	0.0135	0.34	0.0113	0.29
30	0.012	0.30	0.01	0.25
31	0.0105	0.27	0.0089	0.23
32	0.0097	0.25	0.008	0.20
33	0.009	0.23	0.0071	0,18
34	0.0082	0.21	0.0063	0.16
35	0.0075	0.19	0.0056	0.14
36	0.0067	0.17	-

14 Gauge Vs 16 Gauge Sheet Metal

Designation	Type of Steel
A53 / A53M – 20	Pipe, steel, black and hot-dipped, zinc-coated, welded and seamless
A106 / A106M – 19a	Seamless carbon steel pipe for high-temperature service
A134 / A134M – 19	Electric-fusion (arc)-welded steel pipe (sizes NPS 16 and over)
A135 / A135M – 20	Electric-resistance-welded steel pipe
A139 / A139M – 16	Electric-fusion (arc)-welded steel pipe (NPS 4 and over)
A178 / A178M – 19	Electric-resistance-welded carbon steel and carbon-manganese steel boiler and superheater tubes
A179 / A179M – 19	Seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes
A192 / A192M – 17	Seamless carbon steel boiler tubes for high-pressure service
A210 / A210M – 19	Seamless medium-carbon steel boiler and superheater tubes
A214 / A214M – 19	Electric-resistance-welded carbon steel heat-exchanger and condenser tubes
A252 / A252M – 19	Welded and seamless steel pipe piles
A254 / A254M – 12(2019)	Copper-brazed steel tubing
A381 / A381M – 18	Metal-arc-welded carbon or high-strength low-alloy steel pipe for high-pressure transmission systems
A423 / A423M – 19	Seamless and electric-welded low-alloy steel tubes
A450 / A450M – 18a	General requirements for carbon and low alloy steel tubes
A498 / A498M – 17	Seamless and welded carbon steel heat-exchanger tubes with integral fins
A500 / A500M – 20	Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes
A501 / A501M – 14	Hot-formed welded and seamless carbon steel structural tubing
A512 – 18	Cold-drawn buttweld carbon steel mechanical tubing
A513 / A513M – 20a	Electric-resistance-welded carbon and alloy steel mechanical tubing
A519 / A519M – 17	Seamless carbon and alloy steel mechanical tubing
A523 / A523M – 20	Plain end seamless and electric-resistance-welded steel pipe for high-pressure pipe-type cable circuits
A524 – 17	Seamless carbon steel pipe for atmospheric and lower temperatures
A530 / A530M – 18	General requirements for specialized carbon and alloy steel pipe
A556 / A556M – 18	Seamless cold-drawn carbon steel feedwater heater tubes
A587 – 96(2019)	Electric-resistance-welded low-carbon steel pipe for the chemical industry
A589 / A589M – 06(2018)	Seamless and welded carbon steel water-well pipe
A595 / A595M – 18	Steel tubes, low-carbon or high-strength low-alloy, tapered for structural use
A618 / A618M – 04(2015)	Hot-formed welded and seamless high-strength low-alloy structural tubing
A671 / A671M – 20	Electric-fusion-welded steel pipe for atmospheric and lower temperatures
A672 / A672M – 19	Electric-fusion-welded steel pipe for high-pressure service at moderate temperatures
A691 / A691M – 19	Carbon and alloy steel pipe, electric-fusion-welded for high-pressure service at high temperatures
A733 – 16	Welded and seamless carbon steel and austenitic stainless steel pipe nipples
A787 / A787M – 20a	Electric-resistance-welded metallic-coated carbon steel mechanical tubing
A795 / A795M – 13(2020)	Black and hot-dipped zinc-coated (galvanized) welded and seamless steel pipe for fire protection use
A822 / A822M – 20	Seamless cold-drawn carbon steel tubing for hydraulic system service
A847 / A847M – 20	Cold-formed welded and seamless high-strength low-alloy structural tubing with improved atmospheric corrosion resistance
A865 / A865M – 06(2017)	Threaded couplings, steel, black or zinc-coated (galvanized) welded or seamless, for use in steel pipe joints
A972 / A972M – 00(2015)	Fusion bonded epoxy-coated pipe piles
A1024 / A1024M – 18	Steel line pipe, black, plain-end, seamless
A1065 / A1065M – 18	Cold-formed electric-fusion (arc) welded high-strength low-alloy structural tubing in shapes, with 50 ksi [345 MPa] minimum yield point
A1076 / A1076M – 20	Cold-formed carbon structural steel tubing made from metallic precoated sheet steel
A1085 / A1085M – 15	Cold-formed welded carbon steel hollow structural sections (HSS)
A1097 – 16	Steel casing pipe, electric-fusion (arc)-welded (outside diameter of 10 in. and larger)
A1103 / A1103M – 16	Seamless cold-finished carbon steel structural frame tubing for automotive racing applications
A1110 / A1110M – 18	Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes with 52 ksi [360 MPa] minimum yield strength and impact requirements
A1112 / A1112M – 18	Cold-formed welded high-strength carbon steel or high-strength low-alloy steel hollow structural sections (HSS) in rounds and shapes

How to Calculate the Weight of 14 Gauge Sheet Metal?

To calculate the weight of 14 gauge sheet metal, we need to use the provided formula and specific densities for each type of material.

Formula:

W=Length×Width×Thickness×Specific density of materialW = \text{Length} \times \text{Width} \times \text{Thickness} \times \text{Specific density of material}W=Length×Width×Thickness×Specific density of material

Weight per unit area for different materials:

1. Sheet Steel:
• Thickness for 14 gauge: 0.0747 inches (1.9 mm)
• Weight: 3.125 lb/ft² or 15.1 kg/m²
2. 14 gauge 304 Stainless Steel (SS):
• Higher thickness: 3.15 lb/ft²
3. Galvanized Steel Sheets:
• Heavier due to coating: 3.281 lb/ft²
4. Aluminum:
• Specific Density: 2,750 kg/m³
• Weight: 0.905 lb/ft² or 4.38 kg/m²

Example Calculation:

Let's calculate the weight of a 14 gauge steel sheet and an aluminum sheet, both measuring 1 meter by 1 meter.

1. 14 Gauge Steel Sheet:

• Dimensions:
• Length = 1 meter
• Width = 1 meter
• Thickness = 1.9 mm = 0.0019 meters
• Specific Density:
• Steel: Approximately 7,850 kg/m³

Wsteel=Length×Width×Thickness×Specific density of materialW_{steel} = \text{Length} \times \text{Width} \times \text{Thickness} \times \text{Specific density of material}Wsteel=Length×Width×Thickness×Specific density of material

Wsteel=1 m×1 m×0.0019 m×7850 kg/m3W_{steel} = 1 \, \text{m} \times 1 \, \text{m} \times 0.0019 \, \text{m} \times 7850 \, \text{kg/m}^3Wsteel=1m×1m×0.0019m×7850kg/m3

Wsteel=14.915 kgW_{steel} = 14.915 \, \text{kg}Wsteel=14.915kg

2. 14 Gauge Aluminum Sheet:

• Dimensions:
• Length = 1 meter
• Width = 1 meter
• Thickness = 1.63 mm = 0.00163 meters
• Specific Density:
• Aluminum: 2,750 kg/m³

Waluminum=Length×Width×Thickness×Specific density of materialW_{aluminum} = \text{Length} \times \text{Width} \times \text{Thickness} \times \text{Specific density of material}Waluminum=Length×Width×Thickness×Specific density of material

Waluminum=1 m×1 m×0.00163 m×2750 kg/m3W_{aluminum} = 1 \, \text{m} \times 1 \, \text{m} \times 0.00163 \, \text{m} \times 2750 \, \text{kg/m}^3Waluminum=1m×1m×0.00163m×2750kg/m3

Waluminum=4.48225 kgW_{aluminum} = 4.48225 \, \text{kg}Waluminum=4.48225kg

Checking 14 Gauge Sheet Metal for Projects

When working on projects involving 14 gauge sheet metal, it’s essential to understand the type of material you’re using and its specific properties. For example, a 14 gauge stainless steel sheet, which measures approximately 0.0781 inches (2.0 mm) in thickness, is well-suited for applications requiring durability and resistance to harsh environmental conditions. It’s commonly used in metal framing for buildings, light fixtures, and industrial applications. 

On the other hand, 14 gauge mild steel, with a thickness of about 0.0747 inches (1.9 mm), is versatile and suitable for general-purpose projects such as auto repair and shop work. For such tasks, tools like shear cutting machines and metal snips are appropriate for precise cutting.

If you’re working with aluminum, the 14 gauge sheet has a thickness of 0.0641 inches (1.6 mm). This material is lightweight and corrosion-resistant, making it ideal for non-load-bearing applications like signage, electrical enclosures, and architectural cladding. For cutting aluminum, metal shears or a circular saw with an aluminum cutting blade are recommended. Regardless of the material, it’s crucial to verify that the sheet metal meets local standards and project specifications. Inspecting the quality of the metal to ensure there are no defects, and choosing the appropriate tools for cutting and handling will help ensure the success of your project.

How to Protect Against Rust on 14 Gauge Steel?

Rust can significantly affect the durability and functionality of 14 gauge steel. To prevent corrosion and extend the lifespan of your steel sheets, it is essential to use appropriate protection methods. For instance, opting for a grade of stainless steel, such as 14 gauge 304 stainless steel, can be a cost-effective choice as it offers superior resistance to oxidizing acids and general corrosion. On the other hand, 14 gauge carbon steel, with its higher carbon content, is more prone to rust when exposed to moisture and harsh conditions.

Here are several practical measures to protect 14 gauge steel from rust:

1. Galvanizing: Applying a zinc coating through galvanizing provides a protective layer that helps shield the steel from rust. This method is effective in preventing corrosion.
2. Electroplating and Powder Coating: Electroplating involves coating the steel with a thin layer of another metal to enhance its resistance to rust. Powder coating, which applies a layer of epoxy, acrylic, or polyurethane, offers a robust protective finish.
3. Priming and Painting: For 14 gauge mild steel, applying a red oxide primer followed by metal paint can offer a protective barrier against rust. Pickling, a process of treating the steel with an acid solution to remove impurities, is another option to prepare the surface for painting. Additionally, mechanical grinding can help remove any existing rust before applying protective coatings.
4. Regular Inspection and Cleaning: Keeping the steel clean is crucial to preventing rust. Regularly inspect and clean the surface using soap and water to remove dirt and grime that can trap moisture.
5. Proper Storage: Store 14 gauge steel sheets in a dry environment to avoid exposure to moisture. Avoid placing them in areas with adverse weather conditions or fluctuating temperatures, which can accelerate rust formation.

By implementing these protective measures, you can significantly enhance the longevity and performance of your 14 gauge steel projects.

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