A 2-ply Business Card is a card created by mounting together two stocks. This can double the thickness of a thinner stock by adding an extra layer, or can be used to combine two different stocks for a unique look.
You may see 2-ply cards referred to as other names:
W1S simply means "White One-Side". W1S cards are a 2-ply card – with the back ply/layer being White.
3-ply is another way of referring to our Layered business cards. These are different from 2-ply cards in that they use three stocks pressed together. Usually the middle layer is made from colourful paper stock to create a unique layered edge look.