Custom Duplex Board Boxes & Duplex Board Packaging
Duplex board is the quiet workhorse of retail packaging. Coated white on the printing side, grey or brown on the reverse, and considerably cheaper than a fully bleached board. If the inside of your carton never gets seen, you are paying for a white back you do not need. We produce a lot of duplex board packaging at ZEE Packaging and the saving surprises most clients.
White Front, Grey Back
A duplex board box is coated on one side only.
- The printing face is coated white for good reproduction
- The reverse stays grey or brown from recycled fiber
- You pay for coating only where it actually shows
- Recycled content is usually high, which helps the eco story
- Print quality on the front matches more expensive boards closely
- The saving is meaningful across a large run
Most brands moving to a duplex board box do so once they realize the inside is never seen.
When The Grey Back Matters
Being honest about the limitation saves disappointment.
- Window cartons show the interior, so grey is visible
- Open display formats reveal the reverse face
- Gift packaging where the lid lifts to show the inside
- Anything printed on both faces needs a different board
- Food contact usually requires a specific lined grade
- Where the back shows, we would suggest a white lined alternative
- Reverse tuck end the everyday duplex board box
- Straight tuck end a cleaner front panel for shelf display
- Seal end carton glued, widely used in food and pharma
- Auto lock bottom carrying weight and assembling quickly
- Snap lock bottom the cheapest bottom construction
- Sleeve format wrapping around a tray or an inner box
Sizes We Print Regular
Every duplex board box is built to your product, though these run often:
- 2" x 2" x 4" for a cosmetic tube
- 3" x 2" x 5" for pharma and blister packs
- 4" x 4" x 6" for a candle or jar
- 6" x 4" x 8" for a food carton
- 8" x 6" x 2" for a flat item
- 5" x 3" x 7" for a bottle
Board And Print
- 230gsm to 450gsm covering most retail applications
- 300gsm as a sensible everyday standard
- Coated front for offset and litho reproduction
- Grey back, or brown back on some recycled grades
- Matte, gloss and soft touch lamination on the printing side
- Foil, spot UV, emboss and deboss all available
Print reproduction on the coated face is very close to a fully bleached board. The difference sits in the reverse rather than in what your customer sees.
Sustainability Worth Noting
- High recycled content is inherent to the grade
- FSC certified board, certificate available on request
- Soy based ink through the whole run
- Less bleaching involved than a fully white board
- Aqueous coating rather than plastic lamination
- Right sizing so no board is wasted per carton
Duplex is genuinely one of the greener mainstream choices, since the recycled back avoids a bleaching stage entirely.
What The Process Involves Here
- 100 unit minimum, so a small brand can order properly
- Free 3D mockup and flat proof before anything prints
- Free dieline drawn by our own designer
- Physical sample on request to check the reverse face
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide with nothing hidden
Frequently Asked Questions
How much cheaper than white board?
Usually a noticeable percentage, which compounds across volume. The saving comes from not coating a side nobody sees.
Will the grey back show?
Only through a window or an open format. On a closed carton it is invisible to the customer entirely.
How much is a duplex board box?
Rough estimate is $0.14 to $0.50 per unit for a standard carton, $0.28 to $0.75 with finishing and $0.50 to $1.30 on larger formats at moderate quantity. Volume moves it. Shipping is included in our price. This is estimate only, so ask our team for a exact quote.
Is print quality worse?
On the coated face, barely different. The reverse is where the two boards diverge, not the printing surface.
Which gsm should we choose?
300gsm covers most retail. Heavier products need 350gsm or above to stop the panel bowing.
Is it food safe?
Only in a certified lined grade. Standard duplex is not suitable for direct food contact, so tell us the application.
Can we print the back?
You can, though it prints onto grey rather than white. For a true two sided print we would suggest a white lined board.
