Parallel Fold / Half Fold
The simplest fold. It is created by folding a piece of paper in half, creating a piece that opens like a book and contains two panels of equal size.
Trifold / Letter Fold
Created by folding both of the outter thirds of paper, one at a time, to overlap in the middle, creating three equal sections.
Roll Fold / Barrel Fold
Created by folding one section of paper inward, then continuing to roll and fold in the same direction.
Double Parallel Fold
Created by folding paper in half and then in half again in the same direction, creating four panels of equal size.
Created by folding a piece of paper into thirds, with one third folded forward and another folded backward. An end view displays the letter Z.
Created by folding a sheet of paper back and forth with three folds. Similar to a Z-fold but with one more fold. A side view displays the letter M.
Created by folding two ends to meet in the middle, creating a large section in the center and two smaller panels on the sides.
Created by folding the paper in half, then folding in half again perpendicular to the first fold.