38"X17" The top to bottom of the glass varies, because there is a slight angle, causing it to vary somewhat.. So I took the vertical center measurement.

 

The side window is smaller on a 4dr JK than on a 2dr JK.

 

Four door, two door and year is needed? 2011 and newer are larger windows.

 

What is the size of a 2010 window. I suspect someone put an older top on the 2012 jeep we bought used.

 

I don't know how big the window is but you have a cute dog

 

Is the back glass the same size as the rear gate or is it wider than the rear gate? That is what tells you which style it is. Bigger = 2011+

 

Mine is roughly 38" x 17".

 

My 2008 side glass is 38.5” x 17.5”