How thick is 14-point?
Card thickness is often measured in points.
So technically, 14-point, or 14pt, is 0.014" , or 0.356mm thick.
However I would think that doesn't help you much :-)
For a frame of reference, a credit card measures 30-points in thickness. So to better understand, a 14-point business card is about half the thickness of a credit card.
Hope that helped!