What are the most common card stocks used in postcards?
The three most popular card stocks offered by printers are:
1. #100 lb. cover, c2s (coated two sides) is probably the most popular.
2. #100 lb. c1s (coated one side) is ideally suited for postcard mailing.
3. #12 Point c2s (coated two sides) is a luxurious premium sheet with brilliant finish.