We have various card stocks and different weights of papers available. It just depends on which one you choose.
Our standard card stock is 14pt with MatteAQ (satin shine, not a flat finish). We also have UV (very high shine) and Uncoated (a flat finish).
Many business cards and postcards also have 16PT as an option, and usually it’s a free upgrade.
The type of printing we provide is called “offset” which is traditional high quality press equipment. For small orders (under 500), we will occasionally use smaller presses or digital presses if we do not have enough orders to fill a sheet (gang printing). Also refer to What Printing Method do you Use?