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I've been scouring the internet for the track width of seats in airlines, and can't find anything on it. Does anyone know around what that dimension might be?

I'm not looking for the dimensions of the seats themselves, but the width of the tracks that the seats attach to.

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  • $\begingroup$ Hello lulubelle, welcome to Aviation.SE! $\endgroup$
    – DeltaLima ♦
    Jun 25, 2016 at 20:34
  • $\begingroup$ There is an entire chapter for the seats in this book: Aircraft Interior Comfort and Design $\endgroup$
    – mins
    Jun 26, 2016 at 15:51

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The attachment rail/track width (gauge) is not fixed. It differs from plane to plane, and the chosen seat manufacturer obliges.

21" or 55 cm seems the average though.

enter image description here

Source: stanford.edu

Above image shows B717 cross section, you can notice the 3-abreast and 2-abreast both are on two rails. No high-res available.

Different plane models:

enter image description here

Some are wall mounted.

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