Construction papers and cardstock are different. Construction papers are easy to fold and cut. The paper is rough and usually unfinished. On the other hand, cardstock is smoother and thicker. They may come in a textured, patterned, or glossy finish. As it is a sturdy variety of paper, you will easily use hot glue and other heavy items on it. However, both varieties of paper are used in a variety of art & craft projects. You may also see some people using these terms interchangeably. However, these are different.