The 5-panel flyer
A five-panel flyer folds into five panels — almost always an accordion that zigzags open into one continuous strip.
Folded sizesA4, A5, A6
Opens to5× the folded size
FoldAccordion
FilesLayered PSD, smart objects
The point of five panels is length. Each panel is a full page and there are five of them, so opened right out you have a run wide enough for a timeline, a step-by-step, a full product range or a map — far more than a tri-fold gives, and it reads as one continuous surface rather than separate columns. Worth checking what your printer can handle before you commit, since the flat sheet gets long.
It also means planning the order. An accordion reveals a panel at a time as it opens, so the piece is read in sequence, not taken in at once — the panel order matters more here than on any shorter fold. A4 is the roomiest version for something detailed; A5 and A6 close to a lighter piece that's easier to carry, and the proportions match so artwork moves between them without refitting. Folded as an accordion it also stands on a table like a little concertina screen, which is worth designing for.
In the sets: folded, part-open in the zigzag and laid flat, tented and shot from above, so you can present the closed piece and the full open strip together. Each is a layered PSD with smart objects — the artwork sits on its own layer, so replacing it leaves the fold, light and shadow untouched.