semojetman
Well-known member
If u buy steel sheets you get 12 guage, 16 guage, 22 guage, etc.
But when u buy a boat its .100. Or .080
Just curious
But when u buy a boat its .100. Or .080
Just curious
TinBoats.net
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why are boat hulls typically measured in thousandths instead
- Thread starter semojetman
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For the very simple reason that sheet steel is sold in gauges, whereas sheet aluminum is sold in decimal increments. Just as copper sheet is sold by weight (measured in ounces per square foot). Different standards for different industries.
Sheet aluminum isn't manufactured or sold in gauge thicknesses, so most of the time, when one hears aluminum measured in gauges, it is from someone in the steel industry, either out of ignorance or habit.
The boat manufacturers are simply stating the thickness of the sheets used to manufacture the boat, using industry standard terms.
*There are gauge charts that show aluminum 'gauges.' Accurate charts, such as the one linked below from Alaskan Copper and Brass, will show by what standard the gauge number is achieved in the notations section (also note that the attached chart shows there is no official aluminum gauge measurement), whereas the charts that don't show that are usually incomplete reprints or copies.
https://www.alascop.com/pdf/sheet_gauge_charts.pdf
Sheet aluminum isn't manufactured or sold in gauge thicknesses, so most of the time, when one hears aluminum measured in gauges, it is from someone in the steel industry, either out of ignorance or habit.
The boat manufacturers are simply stating the thickness of the sheets used to manufacture the boat, using industry standard terms.
*There are gauge charts that show aluminum 'gauges.' Accurate charts, such as the one linked below from Alaskan Copper and Brass, will show by what standard the gauge number is achieved in the notations section (also note that the attached chart shows there is no official aluminum gauge measurement), whereas the charts that don't show that are usually incomplete reprints or copies.
https://www.alascop.com/pdf/sheet_gauge_charts.pdf
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