Before the run
Packaging prototypes: hold your box before the full run
Hold your box before you order the full run. A physical prototype shows the size, the board and the fit in your hand. The price depends on the product; a printed sample of your own design is credited to your order, and every order includes a free digital proof and 3D mockup.
Custom dielines · Free 3D mockup before you pay · Free US shipping

- AI-to-print studio includedAI concepts rebuilt onto exact dielines + 3D mockup
- 4–5 day rush specialistsPriority press lanes built for tight launch deadlines
- No die or plate chargesZero setup fees + 10% off your first custom order
- Free US shippingTo all 50 states · worldwide DDP shipping available
What is packaging prototypes: hold your box before the full run?
Packaging prototypes are physical pre-production boxes made to your exact inside dimensions so you can check product fit, board stiffness, closure flaps, and print quality in your hand before ordering the full run. You can order an unprinted fit prototype or a printed sample of your own artwork, which is priced per product and credited to your order. At CubitPack, every order also includes a free digital proof and 3D mockup before you pay.
What you get
What you get with prototypes
Cut to your inside size
Made to your exact Length × Width × Depth so you can slide your real product inside and check the fit.
Your chosen board stock
Feel the actual paperboard, kraft, corrugated, or rigid board thickness and flap closure in your hand.
Printed with your artwork
Order a printed sample of your own design to inspect colors and layout in person before the full run.
Credited to your order
A printed sample of your own design is paid, priced per product, and credited to your full order.
Box and insert fit checks
Test how bottles, jars, or multi-piece kits sit inside a custom card, EVA, or EPE foam insert.
Free 3D mockup either way
Whether or not you order a physical prototype, you get a free digital proof and 3D mockup before you pay.
How it works
Request a quote with prototypes
Tell us what you’re packing and how many. Your dedicated account manager sends tailored pricing for each quantity.
Prefer to talk? or see how ordering works.
How it works
Prototypes, step by step
- 01
Send your specs and art
Share your box style, inside dimensions, board choice, and artwork if you want a printed sample.
- 02
Your account manager quotes it
Prototype pricing depends on the product; your account manager quotes it alongside your full run.
- 03
Check the 3D proof and sample
Review the free digital proof and 3D mockup, then test your physical prototype with your product in hand.
- 04
Approve for the full run
A printed sample is credited to your order; full production takes 10–14 business days after approval and payment.
What to send
What to send us
A rough start is fine: we ask for anything missing.
- The box style and inside dimensions (Length × Width × Depth)
- The board stock and finish you want to test
- Whether you want an unprinted fit prototype or a printed sample of your own design
- Your logo or artwork file, if ordering a printed sample
- Your target quantity for the full production run
Is it for you?
When to use prototypes
You want to test how your product fits inside the box in hand
Order a physical prototype priced per product so you can put your bottle, jar, or kit inside before the full run.
You want to see and photograph your own printed box before bulk production
Order a printed sample of your own design; it is priced per product and credited to your order.
You just need to check artwork placement and panel orientation
Use the free digital proof and 3D mockup included with every order before you pay.
Free design helpYour product needs a custom cavity or engineered foam insert
See Structural design: we design custom box shapes and card, EVA, or EPE foam inserts.
Structural designCompare
Ways to check your packaging before the full run
| Option | What you see or hold | When to use it | Cost |
|---|---|---|---|
| Digital proof and 3D mockup | Flat layout proof and folded 3D preview on screen | Every order, to check artwork and panels before paying | Free |
| Physical fit prototype | A physical box (and insert) cut to your exact size | Checking product fit, board feel, and flap closure in hand | Priced per product |
| Printed sample of your design | Your own artwork printed on a physical box | Checking print colors and holding the finished box first | Priced per product, credited to your order |
| Drop and crush testing | Pre-run drop and crush checks on your box | Heavy, fragile, or parcel-shipped products | Ask with your quote |
Ready to start? Request a quote.
Send a rough idea: a product, a size and up to 3 quantities to compare.
Examples
Examples
Example designs for made-up brands, to show what you get.

A plain fit prototype beside a printed carton
A skincare brand checked serum bottle height in an unprinted tuck carton before approving the printed box.

A printed sample of a rigid candle box
A home fragrance brand ordered a printed two-piece sample credited toward their full production run.

A prototype box and card insert for a coffee kit
A coffee roaster tested how two bags and a tasting card sat inside a custom prototype mailer.
Popular with this service
Packaging people order with it
Get a quote for any of these right here.
Products 8
Custom Mailer Boxes
From 250Custom Cosmetic Boxes
Custom printed cosmetic boxes for makeup tubes, compacts, palettes and jars.
From 1,000Custom Candle Boxes
Custom printed candle boxes with inserts for 8 oz, 9 oz and 3-wick glass jars and tins.
From 1,000Custom Box Inserts
Custom die-cut box inserts in card, corrugated, EVA foam, EPE foam and honeycomb.
Custom PR Boxes
Custom printed PR boxes and media kits with fitted foam or card inserts from 250 mailers.
From 250Custom Straight Tuck End Boxes
From 1,000Custom Perfume Boxes
Custom printed perfume boxes from 50 rigid cases or 1,000 folding cartons.
From 50
Why CubitPack
One account manager, from first question to delivery.
- 1-on-1
Dedicated account manager
Work with one packaging specialist from sizing and dielines through proof approval and delivery.
- Free
AI & custom design studio
Bring print-ready files, a rough logo, or an AI-generated box idea — we rebuild every element onto your exact dieline for free.
- 3D
Approve before you pay
Review a high-detail 3D mockup and flat digital proof of every panel, flap and finish before paying a cent.
- 10–14
Business days to deliver
Counted from proof approval and payment, with free shipping across all 50 states. Rush orders ship in 4–5 days.
Our promises, in writing
- Reprint or refund. If we get it wrong, tell us within 14 days with photos and you choose.
- Pantone guaranteed. If a Pantone color is clearly off, we reprint it.
- Damaged in transit. We reprint the damaged units free and handle the carrier claim.
- Cancel free. Any time before you approve your proof, with a full refund.
Guides
Packaging guides for prototypes
At a glance
Prototypes at a glance
- What it is
- You want to hold your box before the full run.
- Cost
- Quoted with your order
- Account support
- Dedicated account manager from quote to delivery
- Before you pay
- A digital proof and a 3D mockup
- Production
- 10–14 business days after approval and payment; rush 4–5 days
FAQ
Prototypes: questions
How much does a packaging prototype cost?
It depends on the product. Tell us the box style, size, and whether you want an unprinted fit prototype or a printed sample, and your account manager will quote it with your order.
Are custom packaging samples free?
No, there are no free samples. A physical prototype is priced per product, and a printed sample of your own design is paid, priced per product, and credited to your order.
How does the credit for a printed sample work?
When you order a printed sample of your own packaging design, you pay the per-product sample price up front and that amount is credited toward your full order when you proceed to production.
Do I still get a 3D mockup if I do not order a physical prototype?
Yes. Every order includes a free custom dieline, a free artwork check, a flat digital proof, and a 3D mockup that you review and approve before you pay.
Can I prototype a custom box and insert together?
Yes. Through our structural design service, we can make a physical prototype of both the outer box and its card, EVA foam, or EPE foam insert so you can test the fit with your product.
What if I want to change the box size after testing the prototype?
Tell your account manager what needs adjusting. We update the custom dieline and send a new digital proof and 3D mockup before you approve the full production run.
How long does full production take after I approve?
Standard production takes 10–14 business days after proof approval and payment, or 4–5 days with a rush order, and shipping is free to all 50 US states. Whether you need custom box prototype, printed packaging sample, physical box sample before production, custom packaging fit sample, pre-production box prototype or test fit packaging sample, your account manager coordinates every step.
Get started
Get started with prototypes.
Bring a rough size, a logo, or an AI concept. One dedicated account manager guides your custom packaging from dieline and 3D proof to delivery.













