How to Choose Packaging Inserts: Smart Buyer’s Guide

If you want to learn how to choose packaging inserts, start with this ugly little truth: I once watched a $12 rigid box fail because a $0.18 insert was 3 mm too short. The bottle rattled, the corner scuffed, and the customer emailed photos within 24 hours. The insert had been made in Dongguan, the outer box in Shenzhen, and nobody bothered to check the final packed height. Cheap mistake. Expensive lesson. The kind that makes your stomach drop before your coffee even kicks in.

I’m Sarah Chen, and I’ve spent 12 years on factory floors, in supplier negotiations, and in too many packaging reviews where everyone swore the sample “looked fine” until transit proved otherwise. How to choose packaging inserts is not just a materials question. It’s a product protection decision, a branding decision, and a cost-control decision all at once. Get it wrong, and your Custom Packaging Products start leaking margin through damage, returns, and oversized shipping cartons. And yes, someone eventually asks why the “premium” box sounds like a maraca. I’ve heard that exact complaint from a London buyer in a 7:30 a.m. Zoom call, which is somehow worse than hearing it on a factory floor.

Good inserts do three jobs at the same time: they hold the product, protect it, and make the unboxing feel intentional instead of accidental. That’s why how to choose packaging inserts matters whether you ship cosmetics, candles, electronics, gift sets, or premium retail packaging. A smart insert can cut breakage, improve package branding, and keep your product packaging from arriving like it went through a minor car crash. I’ve had clients call that “character.” Cute. No. One brand in Osaka used a loose PET tray for a 420 g candle set and wondered why the lid arrived dented in under a week. The tray was the problem, not the courier.

How to choose packaging inserts: what they are and why they matter

Packaging inserts are the internal structure inside the box that keeps the product from bouncing around like it’s in the back of a delivery truck with no suspension. In plain English, they hold, separate, cushion, and present items so they don’t rattle, crush, or ship ugly. If you’re figuring out how to choose packaging inserts, this is the starting point: the insert is the thing standing between your product and physics. A 350gsm C1S artboard insert can be perfect for a 180 g cosmetic jar, while a 1.5 mm corrugated insert is a better fit for a 900 g gift set. Different jobs. Different materials. Shocking, I know.

I’ve seen brands spend $4.20 on a beautiful custom printed box, then ruin the whole experience with a loose insert that let a jar slide into the lid flap. The box looked premium from the outside. Inside, it looked like nobody measured anything. That is why how to choose packaging inserts should always be part of packaging design, not an afterthought someone approves at 6:40 p.m. because the shipment date is coming up and everyone is pretending not to panic. One client in Los Angeles approved a sample after a single photo review and then discovered the real production caps were 2.8 mm taller. The insert failed. The rework added 9 business days and a $280 correction fee. Great use of everyone’s Tuesday.

There are two broad categories. Protective inserts are built to resist movement, absorb shock, and reduce breakage. Presentation inserts are built to frame the product, raise perceived value, and support the unboxing moment. In real projects, many brands need both. A fragrance brand I worked with in Shenzhen wanted a clean, minimalist look, but the glass bottle still needed real support at the neck and base. We ended up with a paperboard structure made from 400gsm white board with 1.2 mm laminated support points, and it passed ISTA-style transit checks after 18 drop simulations. That’s the sweet spot when you’re learning how to choose packaging inserts.

The business case is simple. Fewer returns. Better reviews. Less damage. Lower re-ship costs. Less time spent by customer service explaining why “fragile” was not just decorative typography. If your damage rate drops from 4.8% to 1.9% on a run of 10,000 units, the savings can be real money fast. On a $28 product, that difference can easily be thousands of dollars once you include replacement freight, labor, and customer refunds. I’ve seen a single damaged SKU burn through $1,640 in one month at a Texas warehouse because the insert gap was 4 mm too wide. That’s the part most people miss when they think about how to choose packaging inserts.

Common insert types include foam, molded pulp, corrugated, paperboard, plastic trays, and fabric-wrapped options. Each one has strengths and tradeoffs. Foam can protect well but may trigger sustainability concerns. Molded pulp looks eco-friendly and handles decent compression, but fine-tuning a fit can take more sample rounds. Paperboard is often the simplest for flat-packed efficiency. The “best” choice depends on the product, shipping method, and your brand standards. No, the answer is not always the prettiest option on a mood board. I wish it were that easy. A 2.5 mm EVA foam insert might save a glass item in transit, while a 450gsm paperboard insert may be all you need for a lipstick set.

How to choose packaging inserts starts with understanding that inserts are part engineering, part merchandising. If one of those is ignored, your box will tell on you. Usually loudly. Usually after launch.

How packaging inserts work inside the box

When people ask me how to choose packaging inserts, I tell them to think like a freight worker for a minute. A package gets handled, stacked, dropped, tipped, and sometimes shoved into places it should never have met. An insert reduces movement, absorbs shock, creates compartment spacing, and keeps the lid from pressing directly into the product surface. That sounds basic. It isn’t. Basic is exactly where brands get burned. A carton traveling from Guangzhou to Chicago can see 6 to 9 major handling events before it lands on a doorstep, and each one can shift product position by a few millimeters.

There are three jobs an insert can do. First, protection: prevent impact and compression damage. Second, positioning: keep the product centered and stable so it doesn’t drift. Third, presentation: make the product look clean, premium, and on-brand when the customer opens the box. If you’re serious about how to choose packaging inserts, You Need to Know which of those jobs matters most for your SKU. A 90 g serum bottle needs neck support and base restraint. A 780 g candle set needs bottom load support and wall stability. A set of earbuds needs cavity separation and finish protection.

Box dimensions change everything. A product that fits perfectly in a 210 x 140 x 60 mm box may be too loose in a 215 x 145 x 65 mm carton if the insert walls don’t compensate. Weight matters too. A 90 g serum bottle and a 780 g candle set do not behave the same under compression or drop impact. Fragility matters. A glass dropper bottle needs different support than a folded T-shirt. The shipping method matters as well. Parcel freight, mailer shipping, retail shelf display, and wholesale distribution all place different stress on the insert. That’s why how to choose packaging inserts is never one-size-fits-all. I’ve seen a 1.8 mm board insert work beautifully in a retail display box and fail instantly in a mailer that went through a four-day domestic route from Suzhou to Sydney.

My rule: measure real tolerances, not fantasy measurements. I’ve stood next to a packaging line in Guangdong where the drawings said “snug fit,” which apparently meant “probably fine.” The actual product was 2.5 mm wider than the CAD file because the closure cap had been changed after sample approval. The insert had to be remade. Two weeks gone. A $0.14 mistake became a production delay that cost more than the insert tooling. If you want to know how to choose packaging inserts properly, insist on measuring the final packed product, not the concept version. Measure the bottle, the cap, the label wrap, and the seam. All of it.

The workflow should be practical:

1. Build a sample insert or dieline.
2. Load the actual product in the exact shipper box.
3. Run a drop test, compression check, or transit simulation.
4. Inspect for movement, lid contact, corner crush, and cosmetic scuffing.
5. Approve only after the sample survives real handling conditions.

That process sounds boring. It’s also cheaper than reworking 8,000 units because the insert design looked good on a screen and failed in a parcel lane. I’ve had to sit through that meeting. Nobody enjoys it. Especially not after the buyer in Chicago has already promised a launch date to retail stores in Illinois and Michigan.

How to choose packaging inserts: key factors to compare

If you want a practical answer to how to choose packaging inserts, start here: product fragility. Glass, electronics, cosmetics, candles, and premium gift sets each need different support. A lipstick tube can tolerate more minor movement than a ceramic mug. A serum bottle with a glass pipette needs a tighter neck hold than a pump bottle. A candle in a thin-walled jar needs bottom support and side stabilization because wax weight plus glass wall thickness can create breakage in the wrong kind of drop. A 65 mm candle jar in a 350gsm C1S insert may be fine for local courier delivery in Seoul, but the same setup might not survive an export route through Rotterdam and New York.

Weight and center of gravity matter next. Heavy items need stronger walls, better bottom support, and a tighter cavity fit so the load doesn’t shift in transit. I once helped a client with a 1.2 kg tea set, and the original insert only supported the outer walls. Looked nice. Failed badly in compression. We redesigned it with a double-support structure and changed the board spec from 300gsm to 450gsm equivalent in critical areas. That solved the collapse issue, but it added $0.11 per unit. Worth it. Broken ceramic cups cost more than that every time, and the warehouse manager in Ningbo was not interested in excuses. Neither was the finance team.

Material choice is where a lot of brands overthink aesthetics and underthink physics. If you’re weighing how to choose packaging inserts, compare the common materials like this:

Insert material	Protection	Brand look	Recyclability	Typical use case	Cost tendency
Paperboard	Good for light to medium products	Clean, print-friendly	High	Cosmetics, gift sets, retail packaging	Lower tooling, lower unit cost
Corrugated	Strong structural support	Functional, can be hidden	High	Shipping cartons, heavier products	Usually economical
Molded pulp	Good compression and separation	Natural, eco-forward	High	Electronics, sustainable product packaging	Moderate, with tooling setup
Foam	Excellent shock absorption	Less premium visually unless wrapped	Lower, depending on type	Fragile or high-value items	Can be efficient at scale
Plastic tray	Good positioning and clarity	Visible, polished	Varies	Retail presentation, multi-item kits	Tooling can raise startup cost

Brand experience matters too. Ask yourself whether the insert should disappear visually or act as part of the unboxing story. In branded packaging, the insert can either support a premium reveal or quietly do its job in the background. For high-end skincare, I’ve seen simple white paperboard with a matte finish outperform shiny plastic because it matched the brand voice. For a hardware kit shipped from Suzhou to Melbourne, nobody cared if the insert was beautiful. They cared if the parts stayed in place. That’s a real answer to how to choose packaging inserts: match the insert to the brand and the product, not to your personal taste. Brutal, maybe. Accurate, definitely.

Sustainability and retail compliance are no longer optional in many buyer meetings. Retailers and DTC customers ask for recyclable, compostable, or plastic-free structures more often than they used to, and they will ask directly. If the insert is still protecting the product but ends up in the trash, that may still be acceptable for some categories, but you should be honest about the tradeoff. I’ve had buyers request FSC-certified paperboard specifically because their retail packaging standards required it. That’s normal now. If your region or channel has sustainability requirements, check them early. You can read more on standards and materials at FSC and packaging resources at The Packaging School / PMMI resource network. A buyer in Amsterdam once rejected a perfectly functional insert because the board wasn’t certified, and that decision delayed the launch by 11 days.

Here’s my blunt advice: how to choose packaging inserts comes down to balancing six variables—fragility, weight, fit, visual appeal, sustainability, and assembly speed. Ignore any one of them and the result usually shows up as damage, waste, or labor pain. Or all three, because packaging likes to be dramatic. A 0.5 mm tolerance miss in the cavity can turn into 3% more breakage by the time the cartons hit a parcel route from Shenzhen to Denver.

How to choose packaging inserts by cost and pricing

Most people ask how to choose packaging inserts and then immediately ask for a unit price. Fair. But that’s only one piece of the bill. You need to look at unit cost, tooling cost, sample cost, and freight cost. Because apparently people love forgetting the first three until the invoice lands. Then everyone suddenly develops reading comprehension issues. A quoted $0.10 insert can turn into $0.21 landed once you add inner carton volume, pallet count, and assembly time.

Here’s what I mean. A simple die-cut paperboard insert might cost around $0.12 to $0.28 per unit at 5,000 pieces, depending on board thickness, print, and complexity. A molded pulp insert can look cheap on paper, but once you add tooling, sample iterations, and freight on a bulky part, the total can surprise you. Foam can be cost-effective for protection, but some buyers reject it on sustainability grounds or want it wrapped to look more premium. Plastic trays can offer excellent product positioning but may require a higher up-front mold investment. So if you’re learning how to choose packaging inserts, don’t obsess over the quoted piece price and pretend the rest does not exist. It absolutely exists, lurking in the background like a bill nobody wanted to approve.

I still remember a negotiation with a supplier in Dongguan where the client wanted “the cheapest eco insert.” That phrase alone should have triggered a fire alarm. The supplier quoted $0.09 for a thin pulp tray, but the MOQ was 30,000 pieces and the tooling was $3,800. For the client’s first run of 6,000 units, the economics were ridiculous. We pivoted to a folded paperboard structure at $0.16 per unit, no tooling, 14 business days from sample approval, and the total landed cost per packed unit was actually lower once freight and scrap were included. That is exactly why how to choose packaging inserts should be calculated by landed cost per packed unit, not just insert price per piece. The spreadsheet lied less than the brochure did.

Ask suppliers to quote with this structure:

• Unit price at your order quantity
• Tooling or mold cost, if any
• Sample fee and whether it is credited later
• Freight estimate based on cubic size, not just weight
• Packaging labor impact, especially if the insert takes extra assembly time

MOQ affects everything. A low-volume brand can make a fancy molded insert look absurd because the setup cost gets spread over too few units. At 1,000 pieces, a $2,000 mold can add $2.00 per box before shipping. At 20,000 pieces, the math looks very different. This is why how to choose packaging inserts is tied to forecast volume, not just product value. A $6 accessory might justify a simpler insert. A $45 skincare kit might justify something more custom and branded. I’ve seen a startup in Austin switch from molded pulp to die-cut paperboard because their first order was only 4,500 units and the tooling cost made no sense.

Here’s a rough comparison I give clients in packaging design meetings:

• Paperboard inserts: lower startup cost, fast revisions, good for retail packaging and flat-packed shipping.
• Corrugated inserts: stronger structure, usually efficient for shipping protection, often a smart middle ground.
• Molded pulp inserts: good for sustainable product packaging, but tooling and drying times can affect schedule.
• Foam inserts: high protection, often great for fragile items, but can create sustainability concerns.
• Plastic trays: polished presentation and consistent cavities, but higher tooling and end-of-life questions.

One more thing. Don’t ask for “insert price” without asking for the total system cost. If the insert is $0.06 cheaper but forces you into a larger shipper box, that savings disappears fast. Extra carton volume, higher freight dim weight, and more void fill can eat the margin you thought you saved. That’s the trap. That’s why how to choose packaging inserts should always include the outer box, pack-out labor, and damage rate. A 20 mm increase in carton height can move a shipment into the next freight tier. That’s not theoretical. That’s a bill with a tracking number.

Honestly, I think the cheapest insert is the one that prevents the most damage with the least amount of material. Not the one with the lowest quote. Those are not the same thing, no matter how hard a sales rep tries to smile through it. I’ve had suppliers in Shenzhen quote a pretty price that doubled after they learned the product had a glass dropper and a metal cap. Funny how “simple” gets more complicated after real specs show up.

Step-by-step process and timeline for packaging insert development

If you want a practical roadmap for how to choose packaging inserts, follow the development process instead of guessing your way into a headache. I’ve seen brands skip straight from concept to bulk order. That usually ends with a correction email, a reprint charge, and a very awkward apology to the warehouse. Sometimes also a very quiet group chat. Usually in the middle of a Friday afternoon, which is just rude.

Step 1: Measure the product properly. Record length, width, height, weight, lid shape, grip points, and any fragile zones. For a bottle, note the widest diameter and the exact cap height. For a cosmetics set, map each component separately. I like to ask for three real samples, because molded parts and hand-assembled goods can vary by 1 to 3 mm. That variance matters when you’re figuring out how to choose packaging inserts. One sample from a factory in Guangzhou measured 61.2 mm wide, another was 63.1 mm wide, and the designer had only drawn a 62 mm cavity. Guess how well that went.

Step 2: Define the insert’s main job. Is it mainly for protection, display, separation, or all three? A subscription box with multiple small items may need compartmentalization. A luxury candle may need a centered cavity and a clean reveal. A wearable tech kit may need both cushioning and an organized layout. The purpose determines the structure. That sounds obvious. Yet I still see brands design the insert first and the product behavior second. Brilliant strategy, if the goal is to pay for rework. A 6-cell paperboard insert might be perfect for a beauty set, while a molded tray with 4 custom cavities makes more sense for electronics.

Step 3: Request dielines or sample mockups. Ask the supplier for a proper die line or a 3D sample mockup using the same material thickness they plan to produce. Not a “close enough” substitute. Not a random sheet of whatever was sitting near the cutter. I once had a supplier send a sample in a thinner board and swear it was “basically the same.” It was not. The real board added 0.8 mm to each fold and the box stopped closing cleanly. You do not want that surprise at scale. This is a major point in how to choose packaging inserts. If the final spec is 1.2 mm SBS, test it at 1.2 mm SBS. Not 0.9 mm. Not vibes.

Step 4: Test with the real product. Run drop checks, shake tests, transit simulations, and close-fit checks. If the product is going into e-commerce, I prefer testing in the exact mailer or shipper you’ll use in production. ISTA testing standards are a strong reference point for transport packaging validation, and you can review them at ISTA. I’m not saying every small brand needs lab certification on day one. I am saying if your product is fragile or high value, testing is cheaper than a truckload of damaged returns. A $500 test run is better than a $15,000 replacement run. That’s not complicated math.

Step 5: Approve production with lead time in mind. Simple paperboard or corrugated inserts can move quickly once measurements are locked. More engineered solutions need revision cycles, tooling approval, and drying or curing time. In my experience, a straightforward die-cut insert can be ready in 12 to 15 business days from proof approval. Molded structures may take longer, especially if a sample revision is needed. So if you’re learning how to choose packaging inserts, build the calendar backward from launch, not forward from wishful thinking. A project starting in June for an October launch is calm. A project starting 9 days before a trade show is a panic machine.

One brand I advised wanted premium packaging for a new candle line and gave themselves only 10 days before a trade show. We made it happen by choosing a folded paperboard insert instead of a custom molded option. The insert wasn’t just faster. It gave them a cleaner pack-out and kept the candles upright during shipment. Sometimes the “best” answer is the one you can actually produce without sweating through your shirt. Or shouting at a printer at midnight. Their final pack-out spec used 400gsm white board, one glue point, and no tooling. That saved the launch.

Use this timeline logic:

1. Measure and photograph the product.
2. Confirm the retail or shipper box size.
3. Request 2 to 3 insert concepts.
4. Order samples with final material thickness.
5. Test, revise, and approve.
6. Scale production only after the insert passes fit and handling checks.

That process keeps how to choose packaging inserts grounded in real outcomes instead of pretty drawings. It also keeps the production schedule honest, which is more than some packaging plans can say.

Common mistakes when choosing packaging inserts

The biggest mistake I see in how to choose packaging inserts is picking the insert before finalizing the product dimensions. People lock the box, order the insert, then change the bottle neck, the lid height, or the set contents. Suddenly the cavity no longer fits. I’ve watched this happen with a skincare brand that changed pump tops three weeks before production. The insert no longer held the bottle upright. Everyone acted surprised. The measurements were right there in the email thread. Not hidden. Not mysterious. Right there. The final fix cost them 6 extra production days and a rush fee from a supplier in Foshan.

Overbuilding is another classic. Some brands add too much material because they assume thicker automatically means better. Not always. Sometimes it just means higher cost, more weight, and more shipping volume. If a 350gsm paperboard insert holds a 180 g product safely, forcing it into 550gsm may be unnecessary. That extra stiffness can make the pack-out harder and the outer box bulkier. Better is not always thicker. That’s one of the simplest truths in how to choose packaging inserts. The board spec should fit the load, not your ego.

Ignoring insert-to-box fit is a mess I see all the time. Too loose, and the product floats. Too tight, and the insert crushes during assembly or makes the box hard to close. You want controlled tolerance, not a wrestling match. A good insert should allow normal loading without extra force while still preventing movement. This is where real sample testing beats theory every time. A 2 mm gap might be fine for paper stationery. It is not fine for a glass bottle crossing half of Asia in a parcel truck.

Another mistake: choosing a material based on catalog photos instead of actual performance. A molded pulp tray can look clean and sustainable, but if the walls are too thin, it may not protect a heavier item. A foam insert can look plain online but perform like a champ for fragile glass. The photo is not the test. The product in the box is the test. If you’re serious about how to choose packaging inserts, ask for real samples and real thickness specs. Ask for the wall height, flute type, board grade, and compression rating if the supplier has it.

And yes, skipping testing is still happening more than it should. Brands approve inserts off a PDF and then act shocked when the first pallet arrives with scuffed corners or cracked lids. That’s not bad luck. That’s bad process. A few drop tests and a transit simulation cost far less than a replacement run, not to mention the damage to customer trust. I’ve seen one untimely approval add 4.6% return rate to a product shipped from Ningbo to New York. That number hurts for a reason.

“We thought the insert was just a tray. Then returns hit 6% and support tickets tripled.” — a client I worked with on a premium candle launch

If you want the short version of how to choose packaging inserts, don’t rush, don’t guess, and don’t let a nice-looking mockup override physical testing. Packaging design should make the product survive the journey, not just photograph well on a mood board. Pretty does not pay for replacements. A clean dieline does not matter if the cavity is 3 mm off and the jar bangs into the lid on every delivery.

Expert tips for choosing packaging inserts that actually work

Here’s where experience matters. The smartest way to handle how to choose packaging inserts is to prototype early and test in the exact box you plan to ship. Not a similar box. Not a “close enough” carton from the sample room. The exact one. I’ve spent enough time on factory floors to know that tiny differences in flute, board caliper, or fold depth can change everything. A 1.5 mm corrugated insert in Shenzhen is not the same as a 1.8 mm board from a supplier in Suzhou, even if the photos look identical.

Ask suppliers for samples in the same material thickness, not a random substitute that “basically feels similar.” That phrase makes me smile in the worst way. “Basically similar” is what people say before a box fails a closure test. Material thickness affects compression resistance, fit, and finish. If the final insert is 1.2 mm board, your prototype should not be 0.9 mm because somebody was trying to save time. That ruins the whole exercise of how to choose packaging inserts. I’d rather wait 3 extra days for the correct sample than approve a wrong one and spend 3 weeks cleaning up the mess.

Design for assembly speed if your team packs orders manually. I’ve seen fulfillment lines where a beautiful insert added 20 seconds per box because it required two folds and a tab lock that was a little too clever. Multiply 20 seconds by 2,000 boxes, and you’ve created more than 11 extra labor hours. That is real money. If your pack-out team handles 500 boxes a day, even a 5-second improvement saves time each shift. Good how to choose packaging inserts decisions should help the warehouse, not just impress the marketing team. A supplier in Jakarta once suggested a “premium locking structure” that added 14 seconds per pack. That was not premium. That was a labor tax.

Balance protection and unboxing. The insert should feel intentional, not like a medical brace for fragile merchandise. Clean cutouts, consistent board color, and a controlled reveal can improve the customer experience without adding unnecessary cost. That matters in branded packaging. It also matters for retail packaging where the interior must look tidy if the product is displayed without much additional dressing. A matte white insert in a 320 x 240 x 90 mm rigid box can look more expensive than a shiny plastic tray, especially under warm store lighting.

Use practical tests before final approval:

• Shake test to check for movement
• Drop test from typical handling heights
• Compression check to ensure the insert supports lid pressure
• Pack-out speed test to measure assembly time
• Visual review for scuffing, tilt, and reveal quality

I also recommend comparing two materials side by side before scaling. For example, one client narrowed it down to molded pulp versus paperboard for a skincare kit. The pulp won on eco positioning, but the paperboard won on print quality, lower MOQ, and pack-out speed. We picked paperboard, saved about $0.07 per unit at 8,000 units, and avoided a three-week tooling wait. That’s the kind of tradeoff you make when you’re serious about how to choose packaging inserts. The product shipped from Xiamen to San Francisco on time, and the client stopped sending me “quick question” emails at 11:48 p.m.

Here’s a simple shortlist approach that works in real life:

1. Audit the current damage rate and failure points.
2. Measure every product in the set.
3. Shortlist two materials that fit your brand and budget.
4. Request samples with final thickness and finish.
5. Test in the actual box under real handling conditions.
6. Compare cost, damage rate, and pack-out time before scaling.

If you do that, how to choose packaging inserts stops being a guessing game and becomes a clean production decision. That’s the goal. Not perfection. Just fewer headaches, fewer returns, and a product that arrives looking like you meant it to.

For brands building out broader Custom Packaging Products, I’d also align the insert with the outer box structure, sleeve, and print finish. The insert should support the whole package branding story, not fight it. A matte black rigid box with a white glossy insert can look disconnected. A kraft outer with a natural pulp insert can feel cohesive. Small detail. Big effect. I saw a brand in Vancouver fix their premium perception with nothing more than a switch from bright white board to uncoated natural board and a tighter neck cutout. The product stayed the same. The experience did not.

Honestly, the best how to choose packaging inserts decisions are usually the ones that make the product safer, the box prettier, and the fulfillment team less annoyed. If you can hit all three, you’re doing well. If you can do it with a 12 to 15 business day turnaround and a unit cost that still makes finance stop squinting, even better.

FAQ

If you’re still sorting out how to choose packaging inserts, use this order: measure the product, decide the job, compare materials, request samples, test honestly, and only then place the production order. That sequence saves money. It also saves your support team from another round of “my box arrived damaged” emails. And frankly, they’ve suffered enough. If you need a practical starting point, begin with one sample in 350gsm C1S artboard, one in molded pulp, and one in 1.5 mm corrugated. Compare them in the actual shipper box, not on a desk in a conference room.