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Metals
- Metals
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Alloy Steel
- Alloy Steel
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Ball
- Ball
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Bar-Hex
- Bar-Hex
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Sheet/Plate
- Sheet/Plate
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Tube-Round
- Tube-Round
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Tube-Square
- Tube-Square
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Aluminum
- Aluminum
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Angle
- Angle
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Bar-Hex
- Bar-Hex
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Bar-T-Bar
- Bar-T-Bar
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Channel
- Channel
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Foil
- Foil
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I-Beam
- I-Beam
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Pipe
- Pipe
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Sample Pack
- Sample Pack
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Sheet-Expanded
- Sheet-Expanded
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Sheet-Perforated
- Sheet-Perforated
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Sheet/Plate
- Sheet/Plate
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Sheet-Strip
- Sheet-Strip
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Sheet-Textured
- Sheet-Textured
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Sheet-Tread Plate
- Sheet-Tread Plate
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Shim Stock
- Shim Stock
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T-slot
- T-slot
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Tape
- Tape
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Threaded Rod
- Threaded Rod
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Tube-Rectangle
- Tube-Rectangle
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Tube-Rectangle Radius Corner
- Tube-Rectangle Radius Corner
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Tube-Round
- Tube-Round
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Tube-Square
- Tube-Square
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Tube-Square Radius Corner
- Tube-Square Radius Corner
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Beryllium Copper
- Beryllium Copper
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Bar-Round
- Bar-Round
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Brass
- Brass
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Angle
- Angle
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Ball
- Ball
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Bar-Half Oval
- Bar-Half Oval
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Bar-Half Round
- Bar-Half Round
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Bar-Hex
- Bar-Hex
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Bar-T-Bar
- Bar-T-Bar
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Channel
- Channel
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Foil
- Foil
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Pipe
- Pipe
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Sample Pack
- Sample Pack
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Sheet/Plate
- Sheet/Plate
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Sheet-Strip
- Sheet-Strip
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Shim Stock
- Shim Stock
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Threaded Rod
- Threaded Rod
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Tube-Rectangle
- Tube-Rectangle
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Tube-Round
- Tube-Round
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Tube-Square
- Tube-Square
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Bronze
- Bronze
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Hollowbar
- Hollowbar
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Sheet/Plate
- Sheet/Plate
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Carbon Steel
- Carbon Steel
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Ball
- Ball
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Bar-Hex
- Bar-Hex
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Channel
- Channel
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Key Stock
- Key Stock
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Pipe
- Pipe
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Sheet/Plate
- Sheet/Plate
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Sheet-Expanded
- Sheet-Expanded
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Sheet-Perforated
- Sheet-Perforated
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Shims and Spacers
- Shims and Spacers
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Threaded Rod
- Threaded Rod
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Tube-Rectangle
- Tube-Rectangle
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Tube-Round
- Tube-Round
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Tube-Square
- Tube-Square
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U-Edge
- U-Edge
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Wire
- Wire
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Cast Iron
- Cast Iron
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Hollowbar
- Hollowbar
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Copper
- Copper
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Foil
- Foil
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Sheet/Plate
- Sheet/Plate
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Sheet-Strip
- Sheet-Strip
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Shim Stock
- Shim Stock
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Tape
- Tape
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Threaded Rod
- Threaded Rod
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Tube-Coil
- Tube-Coil
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Tube-Round
- Tube-Round
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Nickel
- Nickel
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Bar-Round
- Bar-Round
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Foil
- Foil
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Sheet/Plate
- Sheet/Plate
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Shim Stock
- Shim Stock
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Tube-Round
- Tube-Round
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Nickel Silver
- Nickel Silver
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Bar-Round
- Bar-Round
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Sheet/Plate
- Sheet/Plate
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Stainless Steel
- Stainless Steel
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Angle
- Angle
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Ball
- Ball
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Bar-Half Round
- Bar-Half Round
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Bar-Hex
- Bar-Hex
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Bar-T-Bar
- Bar-T-Bar
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Channel
- Channel
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Feeler Gauge
- Feeler Gauge
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Foil
- Foil
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Foil Wrap
- Foil Wrap
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Key Stock
- Key Stock
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Pipe
- Pipe
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Sheet-Expanded
- Sheet-Expanded
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Sheet-Perforated
- Sheet-Perforated
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Sheet/Plate
- Sheet/Plate
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Sheet-Strip
- Sheet-Strip
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Sheet-Textured
- Sheet-Textured
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Sheet-Tread Plate
- Sheet-Tread Plate
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Shim Stock
- Shim Stock
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Slotted Shim
- Slotted Shim
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Tape
- Tape
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Threaded Rod
- Threaded Rod
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Trim Strip
- Trim Strip
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Tube-Coil
- Tube-Coil
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Tube-Rectangle
- Tube-Rectangle
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Tube-Round
- Tube-Round
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Tube-Square
- Tube-Square
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Wire Mesh
- Wire Mesh
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Wire
- Wire
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Titanium
- Titanium
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Sheet/Plate
- Sheet/Plate
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Bar-Round
- Bar-Round
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Tube-Round
- Tube-Round
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Tool Steel
- Tool Steel
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Bar-Rectangle
- Bar-Rectangle
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Bar-Square
- Bar-Square
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Drill Rod
- Drill Rod
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Bar-Round
- Bar-Round
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Tungsten Carbide
- Tungsten Carbide
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Rectangle Bar
- Rectangle Bar
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Round Bar
- Round Bar
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Zinc
- Zinc
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Sheet/Plate
- Sheet/Plate
- Plastics
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Prototyping Materials
- Prototyping Materials
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Machinable Wax
- Machinable Wax
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Bar-Rectangle
- Bar-Rectangle
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Bar-Round
- Bar-Round
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Bar-Square
- Bar-Square
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Proto Boxes
- Proto Boxes
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Aluminum
- Aluminum
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Brass
- Brass
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Carbon Steel
- Carbon Steel
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Copper
- Copper
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Plastic
- Plastic
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Stainless Steel
- Stainless Steel
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Sample Packs
- Sample Packs
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Alloy Steel
- Alloy Steel
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Aluminum
- Aluminum
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Brass
- Brass
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Carbon Steel
- Carbon Steel
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Copper
- Copper
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Stainless Steel
- Stainless Steel
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Framing Systems
- Framing Systems
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Unistrut Systems
- Unistrut Systems
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1-5/8" Framing and Fittings
- 1-5/8" Framing and Fittings
- Channel
- Fittings
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Hardware
- Hardware
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Channel Nuts
- T-Slot Systems
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Precision Products
- Precision Products
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Centerless Ground Accurod®
- Centerless Ground Accurod®
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Drill Rod
- Drill Rod
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Stainless Steel
- Stainless Steel
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304
- 304
- Tool Steel
- Ground Flat Stock
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Precision Blanks
- Precision Blanks
- Aluminum
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Alloy Steel
- Alloy Steel
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4140
- 4140
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Carbon Steel
- Carbon Steel
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A36
- A36
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Copper
- Copper
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110
- 110
- Stainless Steel
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Fittings
- Fittings
- Decorative
- Pipe
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Tube
- Tube
- Stainless Steel
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3D Printing
- 3D Printing
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Metal 3D Printing Filament
- Metal 3D Printing Filament
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Ceramic 3D Printing Filament
- Ceramic 3D Printing Filament
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Glass 3D Printing Filament
- Glass 3D Printing Filament
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3D Printing Accessories
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- Home
- Thickness Information - Online Metals
Thickness and Gauge Tables
Are you new to the world of making and fabrication? If so, this guide’s for you!
See our Thickness Table here
See our Gauge Conversion Table here
Thickness of material can be a rather abstract concept when you’re first getting started. So, we’ve put together a list of comparisons to help you get a sense for the thickness dimension of sheets, plates, rods and bars as you’re deciding what size materials are best suited for your project.
Thickness Comparison Table |
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Thickness |
Imperial |
Metric |
Sheet of copier paper | .003 in |
.07 mm |
Dollar bill | .0043 in |
.1 mm |
Driver’s license / credit card thickness | .03 in |
.76 mm |
Standard paperclip (wire diameter) | .031 in |
.78 mm |
DVD-R | .047 in |
1.19 mm |
Dime | .053 in |
1.35 mm |
Penny | .059 in |
1.52 mm |
Quarter | .063 in |
1.75 mm |
Nickel | .074 in |
1.95 mm |
House key | .08 in |
2 mm |
Standard car windshield | .25 in |
6.35 mm |
iPhone | .27 - .29 in |
6.85 – 7.36 mm |
Samsung Galaxy | ~.31 in |
~7.87 mm |
Standard tube ballpoint pen | .319 in |
8.1 mm |
Blu-ray case | .511 in |
12.97 mm |
Height of Credit Card | 2.125 in |
53.98 mm |
Width of credit card | 3.37 in |
85.6 mm |
Another common question is about gauge thicknesses. This form of measurement is traditional in the United States, but it is older and is going out of common use here because it is non-linear and actually changes depending on the metal being used. Also, gauge thickness is actually a rough estimate. For mills that still make material based on gauges, it will slightly vary depending on the mill and the batch. For these reasons, we generally advise that you use imperial or metric measurements instead of gauges.
Gauge Conversion Table in Inches |
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Gauge |
Tube |
Alloy Steel |
Aluminum |
Stainless |
Copper |
Brass |
Carbon Steel |
Galvanized Steel |
0 | 0.34 | 0.3125 | 0.3249 | 0.3125 | 0.34 | 0.3249 | --- | --- |
1 | 0.3 | 0.2901 | 0.2893 | 0.2813 | 0.3 | 0.2893 | --- | --- |
2 | 0.284 | 0.259 | 0.2576 | 0.266 | 0.284 | 0.2576 | --- | --- |
3 | 0.259 | 0.2391 | 0.2294 | 0.239 | 0.259 | 0.2294 | 0.2391 | --- |
4 | 0.238 | 0.2242 | 0.2043 | 0.224 | 0.238 | 0.2043 | 0.2242 | --- |
5 | 0.22 | 0.2092 | 0.1819 | 0.209 | 0.22 | 0.1819 | 0.2092 | --- |
6 | 0.203 | 0.1943 | 0.162 | 0.194 | 0.203 | 0.162 | 0.1943 | --- |
7 | 0.18 | 0.1793 | 0.1443 | 0.179 | 0.18 | 0.1443 | 0.1793 | --- |
8 | 0.165 | 0.1644 | 0.1285 | 0.164 | 0.165 | 0.1285 | 0.1644 | 0.1681 |
9 | 0.148 | 0.1495 | 0.1144 | 0.15 | 0.148 | 0.1144 | 0.1495 | 0.1532 |
10 | 0.12 | 0.1196 | 0.1019 | 0.135 | 0.134 | 0.1019 | 0.1345 | 0.1382 |
11 | 0.109 | 0.1046 | 0.0907 | 0.12 | 0.12 | 0.0907 | 0.1196 | 0.1233 |
12 | 0.095 | 0.0897 | 0.0808 | 0.105 | 0.109 | 0.0808 | 0.1046 | 0.1084 |
13 | 0.083 | 0.0747 | 0.072 | 0.09 | 0.095 | 0.072 | 0.0897 | 0.0934 |
14 | 0.072 | 0.0673 | 0.064 | 0.075 | 0.083 | 0.064 | 0.0747 | 0.0785 |
15 | 0.065 | 0.0598 | 0.0571 | 0.067 | 0.072 | 0.0571 | 0.0673 | 0.0710 |
16 | 0.058 | 0.0538 | 0.0508 | 0.06 | 0.065 | 0.0508 | 0.0598 | 0.0635 |
17 | 0.049 | 0.0478 | 0.0453 | 0.054 | 0.056 | 0.0453 | 0.0538 | 0.0575 |
18 | 0.042 | 0.0418 | 0.0403 | 0.048 | 0.049 | 0.0403 | 0.0478 | 0.0516 |
19 | 0.035 | 0.0359 | 0.0359 | 0.042 | 0.043 | 0.0359 | 0.0418 | 0.0456 |
20 | 0.028 | 0.0299 | 0.032 | 0.036 | 0.035 | 0.032 | 0.0359 | 0.0396 |
21 | 0.025 | 0.0269 | 0.0285 | 0.033 | 0.032 | 0.0285 | 0.0329 | 0.0366 |
22 | 0.022 | 0.0239 | 0.0254 | 0.03 | 0.027 | 0.0254 | 0.0299 | 0.0336 |
23 | 0.02 | 0.0209 | 0.0226 | 0.027 | 0.025 | 0.0226 | 0.0269 | 0.0306 |
24 | 0.018 | 0.0179 | 0.0201 | 0.024 | 0.022 | 0.0201 | 0.0239 | 0.0276 |
25 | 0.016 | 0.0164 | 0.0179 | 0.021 | 0.02 | 0.0179 | 0.0209 | 0.0247 |
26 | 0.014 | 0.0149 | 0.0159 | 0.018 | 0.018 | 0.0159 | 0.0179 | 0.0217 |
27 | 0.013 | 0.0135 | 0.0142 | 0.016 | 0.016 | 0.0142 | --- | 0.0202 |
28 | 0.012 | 0.012 | 0.0126 | 0.015 | 0.014 | 0.0126 | 0.0149 | 0.0187 |
29 | 0.01 | 0.0105 | 0.0113 | 0.014 | 0.013 | 0.0113 | --- | 0.0172 |
30 | 0.009 | 0.0097 | 0.01 | 0.012 | 0.012 | 0.01 | --- | 0.0157 |
31 | 0.01 | 0.0105 | 0.0089 | 0.011 | 0.011 | 0.0089 | --- | 0.0142 |
32 | 0.009 | 0.0097 | 0.008 | 0.01 | 0.009 | 0.008 | --- | 0.0134 |
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