- Engineered in four core constructions: printed or unprinted card inserts, dense EVA foam, shock-absorbing EPE foam and kraft honeycomb.
- Die-cut for 1, 2-4, 5-12 or 13+ cavities with custom depth platforms and finger notches so every item sits level.
- Minimums depend on the product and are confirmed with your quote; standard turnaround is 10 to 14 business days (rush 4 to 5).
- Includes free structural engineering, custom dielines, digital proofs and 3D mockups before payment, plus free shipping to all 50 states.
Custom Box Inserts
Custom box inserts die-cut to cradle bottles, jars, cosmetics, electronics and multi-piece kits inside folding cartons, mailer boxes and rigid boxes. Choose printed card inserts, EVA foam, EPE foam or honeycomb dividers with 1 to 13+ cavities. Minimums depend on the product; we confirm yours with your quote. Ready in 10 to 14 business days (rush in 4 to 5) with free US shipping.
What are custom box inserts?
Custom box inserts are die-cut internal trays, folded risers, grid partitions and foam cavities placed inside a product box, corrugated mailer or rigid gift box to lock items in position during shipping and presentation. Without an insert, heavy glass dropper bottles, candle jars, electronics or multi-item starter kits slide into each other in transit, scuffing labels and arriving tumbled when the customer lifts the lid. By engineering exact cavity outlines and stepped floor depths for each component, an insert turns an ordinary outer box into a structured display stage while absorbing parcel drops and vibration. You can order printed card and corrugated inserts that fold from flat sheets, dense closed-cell EVA foam for luxury rigid sets, resilient EPE foam for heavy gear, or paper honeycomb pads. Minimums depend on the product; we confirm yours with your quote. Turnaround is 10 to 14 business days with free US shipping.
Box inserts facts
- Minimum
- Confirmed with quote
- Turnaround
- 10-14 business days
- Rush
- 4-5 business days, quoted
- Insert types
- Card insert, EVA foam, EPE foam, honeycomb
- Cavity counts
- 1, 2-4, 5-12 or 13+ custom cavities
- Printing
- Full color (CMYK), Pantone, white ink on kraft (card inserts)
- Finishes
- Matte, gloss, soft-touch, foil stamping, spot UV
- Engineering
- Free structural design, dieline & 3D mockup
- Shipping
- Free to all 50 states
Should I choose card, EVA foam, EPE foam or honeycomb box inserts?
| Insert type | Material & feel | Best products & box pairing | Printing & customization |
|---|---|---|---|
| Card insert (paperboard or corrugated) | Folded paperboard riser or fluted corrugated cradle | Skincare bottles, jars, candles and subscription mailers | Full CMYK, Pantone, matte, soft-touch or foil stamping |
| EVA foam insert | Dense, ultra-smooth closed-cell foam with crisp die-cut edges | Perfume bottles, watches, jewelry, PR kits and magnetic rigid boxes | Black, white or custom color; optional velvet or paper top card |
| EPE foam insert | Lightweight, springy closed-cell polyethylene cushioning foam | Heavy electronics, glass bottles, tools and shipping cartons | Multi-layer depth routing for shock and drop protection |
| Honeycomb insert | Expandable or layered kraft hex-cell paper cushioning pad | Plastic-free glass bottle shippers, ceramics and natural brands | Natural kraft or white paper face with die-cut recesses |
| Grid partition dividers | Interlocking slotted card or corrugated cross-walls | 4-pack, 6-pack and 12-pack beverage bottles, sauces and ornaments | Ships flat and slots together into individual cells |
Not sure which style fits?
Request a Quote →How are custom box inserts sized for 1 to 13+ cavities?
Every box insert is engineered to two sets of measurements: the inside Length × Width × Depth of the outer box it drops into, and the exact profile of each item it holds. We size the outer tray 1/16 to 1/8 inch smaller than the box interior so it slides in smoothly without buckling the walls. Whether you are comparing custom packaging inserts, die cut cardboard and foam box inserts, custom mailer box inserts, multi cavity product box dividers or custom rigid box trays, we size the template to your exact container.
| Outer tray size (L × W × D) | Cavity count & layout | Typical product kit |
|---|---|---|
| 4 × 2.5 × 1.5 in | 1 cavity (neck + base lock) | Single 30 ml serum dropper bottle or perfume flacon inside a folding carton |
| 6 × 4 × 3.5 in | 2 cavities (side-by-side) | 9 oz glass candle tumbler paired with a custom matchbox or wick trimmer |
| 8 × 6 × 2.5 in | 3 cavities (stepped depths) | Skincare cleanser tube, toner bottle and short face cream jar in a mailer box |
| 9 × 7 × 3.5 in | 4 cavities (grid or recessed) | Four gourmet hot sauce bottles, spice jars or beverage cans |
| 10 × 8 × 2.5 in | 5 to 8 cavities (PR kit layout) | Cosmetic palette, brushes, lip gloss tubes and charger cable set |
| 14 × 10 × 3 in | 12 to 24 cavities (advent grid) | 12-day or 24-day holiday advent calendar, ornament box or sample vault |
Have your inside dimensions ready? Request pricing across up to 3 quantities.
Request a Quote →How do I choose box inserts?
- Pick card vs foam by weightChoose folded card or corrugated for cartons and mailers; choose EVA foam for luxury rigid boxes and EPE foam for heavy gear.
- Count cavities and measure itemsList the length, width and depth of each product so we lay out 1, 2-4, 5-12 or 13+ cavities with safe bridge spacing.
- Set stepped cavity depthsWhen a kit mixes a tall bottle with a short jar, we step the floor depth under the jar so both tops sit flush.
- Add semicircle finger notchesAdding two small thumb cutouts beside each snug recess lets customers lift flush-mounted bottles out effortlessly.
- Match or contrast outer box printPrint card inserts with Pantone colors, ritual step numbers or foil accents that continue your inside-lid artwork.
- Order box and insert togetherOrdering box and insert together lets our design team tests both dielines so tolerances match out of the carton.
What are box inserts made of?
Which finishes can box inserts have?
Which structural features can I add to custom box inserts?
Box inserts specifications
| Spec | Options |
|---|---|
| Insert types | Card insert (paperboard or corrugated), EVA foam, EPE foam, honeycomb |
| Cavity counts | 1, 2-4, 5-12 or 13+ custom die-cut cavities or interlocking partition cells |
| Board & foam specs | White card, kraft, corrugated, recycled board; closed-cell EVA and EPE foams |
| Printing (card inserts) | Full color (CMYK), Pantone color matching guaranteed, white ink on kraft |
| Finishes (card inserts) | Matte, gloss, soft-touch, foil stamping, embossing, debossing, spot UV |
| Size range | Engineered to any box inside length × width × depth |
| Minimum order | Minimums depend on the product; we confirm yours with your quote; delivered within ±5% |
| Design & prototypes | Free structural design, custom dieline, digital proof and 3D mockup; physical prototypes and drop/crush testing available |
| Turnaround & shipping | 10-14 business days (rush 4-5 days); free shipping to all 50 states, worldwide DDP available |
Ready to quote your box inserts? Compare up to 3 quantities with a free 3D mockup.
Request a Quote →What do brands pack with custom box inserts?
An insert does two jobs at once: it stops heavy or fragile items from colliding inside a parcel during shipping, and it stages every piece face-up the moment the customer lifts the lid. Tell us what sits in each cavity and whether your box mails directly or travels inside an outer master shipping carton, and our design team will tailor the cavity depth and wall grip.
Box inserts design ideas
Example designs with made-up brands. Your packaging is made to your design.
What are the most common custom box insert mistakes?
Most insert fit problems happen when outer box folds or finger clearance are overlooked during layout. Watch out for these five mistakes. When specifying custom printed box inserts, box inserts with logo, printed box inserts, branded box inserts and wholesale box inserts, avoid these common production mistakes
- Making the outer length and width of the insert equal to the outside of the box instead of 1/16 to 1/8 inch smaller than the inside cavity.
- Forgetting that roll-end mailer boxes have double-thick side walls that reduce internal width by about 0.25 to 0.375 inches.
- Cutting snug foam or card cavities without semicircular thumb notches, forcing customers to pry products out with their fingernails.
- Leaving less than 0.375 inches of bridge width between adjacent cutouts, which lets heavy glass jars push through the divider wall.
- Designing a single uniform cavity depth for products of different thicknesses, leaving thin items recessed deep in the dark.
Chat with a designer now
Share your logo, a sketch or an AI image. We'll rebuild every element cleanly onto your box dieline and send a 3D mockup, free.
Made your design with AI?
Generated a concept in Google Gemini, ChatGPT, Claude or Midjourney? Send us your AI image: we rebuild every element onto your box dieline and show you a 3D mockup before you pay, free.Custom die-cut box inserts vs loose crinkle paper and bubble wrap: which is better?
| Loose void fill & bubble wrap | Custom box inserts from CubitPack | |
|---|---|---|
| Product protection | Loose crinkle paper that settles in transit | Die-cut cavities lock each item in its own well |
| Unboxing presentation | Items arrive tilted or buried in filler | Every bottle or jar faces forward at uniform height |
| Packing speed | Slow hand wrapping around corners | Drop insert in and press items into slots in seconds |
| Branding | Plain unprinted void fill | Full CMYK or Pantone print on card trays |
| Engineering & fit | Loose guesswork sizing | Free custom structural dieline and 3D mockup |
Get custom box inserts sized to your product, with a free 3D mockup before you pay.
Request a Quote →Are box inserts safe and sustainable?
Drop and crush testing available
For heavy glass jars, ceramics and electronics, we offer physical prototypes and drop and crush testing to verify transit survival.FSC paperboard and partner certifications
FSC paperboard, corrugated and honeycomb materials plus ISO 9001 production are available on request through partner facilities.Pinch-fit and bridge-width check
Our structural designers verify wall width between adjacent cavities so foam walls never tear and paperboard platforms stay rigid.How do I order custom box inserts?
Tell us what you need
Size, quantities or AI conceptCompare volume pricing
Dedicated account managerApprove your proof
Digital proof + 3D mockupMade and shipped
Free to all 50 statesWhat affects the price of custom box inserts?
The price depends on four things, and every custom quote is free.
Insert material
Folded card and corrugated cost less per unit than thick multi-layer EVA or EPE foamDimensions and depth
Outer length × width × depth determines sheet area or foam thicknessCavity count
Multi-cavity stepped trays require more cutting than single-cavity risersQuantity and printing
Unit cost drops at higher quantities; unprinted stock costs less than foil-stamped traysTo lower insert cost on e-commerce kits, ask if a folded corrugated or card riser can hold your items instead of thick foam; folded inserts ship flat and print in full color. Enter up to three quantities in the quote form to compare unit price breaks. You never pay die or plate fees, your first order is 10% off, and we beat any written US competitor quote for the same specs. Buyers ordering bulk custom box inserts, personalized box inserts, custom size box inserts or skincare, cosmetic box inserts can compare up to three quantities in one quote.
10% off your first order.
Request a Quote →What do I need to send for a quote?
- The product and how many you need
- The inside size, or what goes in it
- A style, or ask us to suggest one
- Your logo or artwork (an AI image is fine)
- Pantone codes, if you have them
- Delivery ZIP code and the date you need it
Can I see a sample first?
Sample kit
Board and finish swatches, sample boxes, labels and bags. Credited to your first order.Digital proof + 3D mockup
See it before you payPrinted sample
Of your own designHow does shipping work?
- Free shipping to all 50 states
- Worldwide with DDP prices: duties and taxes included
- Blind and split shipping
- Damaged in transit? We reprint the damaged units free
Why brands choose CubitPack
Dedicated specialist
One account manager from quote to deliveryPantone guaranteed
Clearly off? We reprintReprint or refund
If we get it wrong, you chooseBBB accredited
A US business you can checkBox inserts questions
Should I choose a cardboard insert, EVA foam, EPE foam or honeycomb?
Choose a card or corrugated insert for a printable, flat-shipping platform in folding cartons or mailers. Choose EVA foam for dense, smooth presentation in luxury rigid boxes. Choose EPE foam for lightweight shock cushioning around heavy items, and honeycomb for plastic-free cushioning.
How do I measure my box and products for a custom insert?
Give us the inside Length × Width × Depth of your outer box in inches, plus the dimensions and weights of each item going inside. If you do not have an outer box size yet, list your product sizes in the notes and our design team will size both.
Should I send physical samples of my bottles or jars for fitting?
For simple cylinders or rectangular boxes, caliper measurements are enough to draft your dieline. For tapered perfume bottles, contoured electronics or irregular multi-item kits, we recommend sending samples or testing a physical prototype to dial in the pinch-fit grip.
What is the minimum order quantity for custom box inserts?
Minimums depend on the product; we confirm yours with your quote. Trial orders are reviewed case by case. Enter up to three quantities (such as 250, 500 and 1,000) in Step 1 of the quote form to compare unit pricing.
How much space should be left between cavities on a multi-item insert?
Leave at least 0.375 to 0.5 inches of bridge width between adjacent cavities on paperboard and EVA foam inserts, and 0.5 to 0.75 inches on thicker EPE foam or heavy glass jar trays so divider walls stay stiff.
Can you print my brand colors and instructions directly on a box insert?
Yes. Card and corrugated inserts print in full color (CMYK), guaranteed Pantone spot colors or white ink on kraft, with matte, gloss, soft-touch, foil stamping or spot UV. For foam inserts, we can laminate a printed card top-sheet over the foam.
Do custom box inserts ship flat or pre-assembled?
Paperboard and corrugated riser inserts ship flat, pre-creased and die-cut so they store compactly and fold in seconds. EVA foam, EPE foam and layered honeycomb inserts arrive at full depth ready to drop into your boxes.
Can you assemble my boxes and inserts and pack my products for me?
Yes. CubitPack offers warehousing, fulfillment, kitting and assembly quoted per customer. We can manufacture your boxes, die-cut your inserts, assemble the trays and pack your products, or ship boxes and inserts together to your warehouse.
How long do custom box inserts take to make and ship?
Standard production takes 10 to 14 business days after digital proof approval and payment. Rush production in 4 to 5 business days is available for an extra cost quoted per order. Standard 50-state US shipping is always free.
Do you charge extra cutting die fees for multi-cavity or custom-shaped inserts?
No. We never charge die or plate fees, whether your insert has one round cutout or twelve contoured cavities with finger notches. Our structural design team creates the custom dieline and 3D mockup for free before payment.
Still have a question? Ask a packaging specialist.
Request a Quote →Box inserts terms, explained
- Cavity (well)
- The die-cut pocket or recess that holds one product inside the insert
- Bridge width
- The structural wall thickness left between two adjacent cavities or the outer box edge
- Pinch fit (interference)
- Sizing a foam cavity 1/32 to 1/16 in smaller than the item so the walls grip it snugly
- Stepped depth
- Varying the floor height of different wells so tall and short items sit flush at the top
- EVA vs EPE foam
- EVA is dense and smooth for luxury display; EPE is lighter and springier for shock cushioning
- Thumb notch
- Half-circle finger cutout on the edge of a cavity for easy product removal
More for your e-commerce packaging
Learn more
Get your box inserts price
One dedicated account manager prepares pricing across up to 3 quantities.
- Free design & AI-to-print studio + 3D mockup
- No die or plate charges · 4–5 day rush available
- Free shipping to all 50 states
- 10% off your first order
- Reprint or refund if we get it wrong
Every CubitPack fact on this page comes from our confirmed offers (card, EVA foam, EPE foam and honeycomb inserts, 10-14 business day turnaround, free structural design and free 50-state shipping) and was checked by a packaging specialist. Cavity clearance and bridge-width rules follow standard structural dieline tolerances. Spot something wrong? Tell us and we will fix it. Tell us if something looks wrong.
Sources
- All CubitPack offers, confirmed insert types (Card, EVA foam, EPE foam, Honeycomb), cavity presets (1, 2-4, 5-12, 13+), turnaround (10-14 business days, rush 4-5), free structural design and free US shipping
- Internal packaging cushioning clearance and drop-test protection principles
- Paperboard and corrugated folding tray and partition tolerances
What changed
- October 22, 2026: First published.
- October 22, 2026: Updated specifications, terminology, and verified source links.