The self mailers are generally folded in one of
three basic folds. The standard folds are V-fold, C-fold and Z-fold. From the
three basic folds, several variations are possible, such as double V-folds,
uneven C-folds and eccentric Z-folds. The type of fold that you can use on your
self mailer will depend on the capabilities of the folder/sealer. If you have
special folding requirements, you should discuss them with the person that will
be folding the self mailer to be sure they have the required capabilities. Shown
below are some samples of the basic folds.
A V-fold has one fold which creates
two panels to the mailer.
A double V-fold is when the form is
folded in half and then the two halves are V-folded again. It is also
called a double
A C-fold has two folds
which creates 3 panels to the mailer.
An uneven C-fold is when the panels
of the self mailer are not all similar in size.
A Z-fold has two folds that are folded
in the opposite direction, resulting in a type of fan fold.
An eccentric Z-fold are where the panels
of the mailer are not all similar in size.
A perforation is used in the location of the fold to allow the mailer
to fold easier or when it is necessary for the recipient to be able
to detached a panel, such as a reply card, reply envelope or a check.
When the self mailer is folded in a C-fold, the
panel that is folded to the inside must be slightly smaller than the
outside panels so that it does not interfere with the other fold.
If the panel folded to the inside is a reply card or envelope, keep
in mind that it must meet the requirements for business reply mail.
See Postal Regulations
- Business Reply Mail. If the panel is a check it must be
at least 2 3/4" in depth to meet minimum check requirements for
Note: The finished
folded mailer and any reply mail piece must meet the minimum
weight requirements set up by the USPS.
For details, see Postal
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