Scoring refers to the process of creasing a sheet of paper so it will fold easier and without cracking with a "blunt" knife. Paper of 170gsm or more as well as digitally printed paper are scored before folding to ensure it does not crack along the fold. Thinner paper can be folded only without creasing provided the fold runs along the grain of the paper.  

• Half fold: sheet is folded once in middle creating two equal halves
• Tri fold: sheet is folded into three equal sections along two parallel fold with one panel folded in underneath the outer panel
• Gate fold: sheet is folded into three sections with the two outer sections folding in to meet in the centre
• Z fold: sheet is folded into three equal sections along two parallel fold with folds made in opposite directions resembling a "z"
• Accordion fold: sheet is folded in a series of alternating folds to create multiple panels same size resembling the expandable mid-section of an Accordion musical instrument
• Quarter fold: sheet is folded in half and then folded in half again with the folds parallel to each other.