This is the alternative to tri-fold brochures. They are very similar in terms of cost and in the impact they have.
4-Page Bi-Fold Brochures
The standard 4-page bi-folds are made out of one sheet of 17″x11″ paper. Folded size is LTR (8.5″ x 11″). These bi-fold brochures are easy to print at any printer store, either digital or offset.
The front panel works as the front-page, and its main purposes are to introduce the piece and to cause the necessary intrigue or impact to make the viewer want to open it and read the contents.
The inside panels are usually reserved for content, while the back-cover is used for contact information.
They are more formal than tri-fold brochures, and are intended for more formal organizations, product presentations, catalogues, institutional introductions, etc.
Small 4-Page Bi-Fold Brochure
The small bi-fold is made out of one LTR sheet of paper. Folded size is (5.5″ x 8.5″). Small bi-folds are very similar to tri-folds in terms of lifetime and suggested audience. The small bi-fold brochures have a shorter lifetime and are more informal than standard bi-folds.
Z-fold brochures are used when the flow of the reading adapts better to this structure. They can adapt to small or large paper sizes.
As tri-fold brochures, viewers are most likely to open this kind of brochure, as they cause intrigue when closed.