01
How does the mailer structure protect the product?
A mailer box uses folded board panels to create a
self-contained structure with an integrated lid.
Unlike a simple folding carton, the side walls and
roll-end construction can provide additional rigidity
around the packed item. The amount of protection,
however, depends on the board grade, box dimensions
and how closely the product fits inside.
Start by considering how the box will be handled.
A lightweight retail item packed directly into a
presentation mailer has different requirements from
a heavier product moving through an ecommerce
delivery network. Where movement inside the box could
cause damage, an insert or closer internal fit may be
more useful than simply increasing the overall box size.
02
Which kraft board should you specify?
Custom Soap Die Cut Boxes can be produced from different
board constructions depending on the product and
required appearance. Lighter applications may suit a
paperboard construction, while corrugated board is
commonly considered where greater rigidity or
transport protection is needed. The flute, liner and
overall board specification should therefore be
selected after the packed weight and dimensions are known.
Surface appearance also matters. Natural kraft has a
visible brown tone and characteristic fibre appearance.
That can work well where the packaging design is
intentionally understated, but it also influences
printing. A white or alternative printable liner may
be preferable where the artwork depends on a different
colour base or a particular print appearance.
03
How should the internal dimensions be calculated?
Measure the complete product at its widest, longest
and deepest points. Do not base the carton only on a
nominal product size if closures, accessories or other
components extend beyond it. Any insert, protective
wrap or internal component must also be included when
calculating the usable space.
Excessive clearance can allow the product to move and
may unnecessarily increase material use and shipping
volume. Too little clearance can make packing
difficult or place pressure on the product. The aim is
a practical fit that allows efficient packing while
providing the space genuinely needed for protection.
04
What should be considered before printing kraft mailers?
Artwork should be prepared with the board colour in
mind. Natural kraft is not a neutral white printing
surface, so lighter colours and some brand colours may
reproduce differently. The printing method also
depends on artwork coverage, colour requirements,
board construction and the production specification.
Consider where branding needs to appear before adding
print to every panel. A restrained exterior with a
printed inside lid, for example, can create a
different opening experience from full external
coverage. Finishes should be treated in the same way:
include them where they contribute to presentation,
protection or a defined design objective.
05
When might another box style be more suitable?
Mailer construction is not automatically the right
answer for every product. A folding carton may use
less material for a lightweight retail item, while a
shipping carton may be more appropriate for heavier
goods or demanding distribution conditions. Premium
gifting applications may call for a different
presentation structure altogether.
Comparing the product, sales environment, packing
process and delivery journey before selecting the box
style prevents the structure from being chosen only
because of appearance. The packaging should ultimately
solve the practical requirements of the product first,
with print and presentation developed around that structure.
