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Is the double prime symbol (″) the correct symbol to use when specifying inches? For example:

3′11″

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up vote 10 down vote accepted

In short, yes. This is mentioned here and (a nice blog) here. In addition, it is commonly referenced in typography manuals to specifically use the double prime instead of the quotation mark, or the double apostrophe.

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Yes, as Wikipedia will also confirm.

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protected by Andrew Leach Jun 2 '15 at 21:45

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