Why Are There 5,280 Feet in a Mile?

Discussion in 'General Discussion' started by longknife, Sep 10, 2019.

  1. petro
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    petro Gold Member

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    I remember the big push to metric in the 70's. They taught us both. Now everything is a mix of both with gas and milk in standard and soft drinks in liter bottles. I have both standard and metric tools for mechanical work.

    To this day residential housing uses standard measurements. As a framer feet and inches make the most sense for building. The simple fractions are easier to multiply.
     
  2. longknife
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    longknife Diamond Member

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    I think the vast majority of product containers today in the USA have both systems printed on them. Pounds and such in bigger letters but the metrics are also there.

    My small bottle of Visine has 1/2 fl oz (15ml)
     
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  3. petro
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    petro Gold Member

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    An American advantage to know both systems. In my view.

    Standard measurements for framing are based on divisions of 96 inches, an 8 ft sheet of plywood.12", 16", 24" and 19 1/4" layouts for joists will all fall on 96 inches. Metric wouldn't make sense, but works well for other measurements.
     
  4. longknife
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    longknife Diamond Member

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    I've always thought it's hilarious that a 2x4 piece of lumber is NOT 2" x 4"
     
  5. Pilot1
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    Pilot1 Gold Member

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    Why are train tracks the width they are?
     
  6. petro
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    petro Gold Member

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    Found a link for that. Had to do with standardizing the many localized mills.
    Here's Why a 2x4 is Not 2" x 4"
    Now all door jambs and knobs windows and other products all follow those measurements of a 3.5" or 5.5 " wall with one inch of sheetrock, making a jamb 4 9/16 of an inch for 4 1/2 walls.
     
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