Industry Trends

The 3 Most Common (and Costly) Mistakes When Ordering Custom Bags & Packaging

Conclusion First: You Need a Pre-Submission Checklist

If you're ordering custom bags, boxes, or packaging, the single most effective thing you can do is create and use a pre-submission checklist before you send files to any printer. I'm a packaging buyer handling custom print orders for 7 years. I've personally made (and documented) 12 significant mistakes, totaling roughly $8,500 in wasted budget. Now I maintain our team's checklist to prevent others from repeating my errors. The checklist isn't about being perfect—it's about catching the 3-5 most common, expensive errors that slip through when you're in a hurry.

Why You Should Listen to Me (The Cost of My Mistakes)

I'm not a perfect buyer. I'm a pitfall documenter. My value comes from the money I've wasted so you don't have to. In my first year (2017), I made the classic "wrong dieline" mistake on a paper bag order. The result came back with handles in the wrong spot. 5,000 items, $1,400, straight to the trash. That's when I learned to always, always verify the dieline against the machine specs.

The disaster happened again in September 2022 with a multilayer film bag. I approved artwork that looked fine on my screen, but the print registration was off by a millimeter on the physical sample. On a 10,000-piece order where every single item had the issue, that error cost $2,200 in redo plus a 1-week delay for a key product launch. We've caught 47 potential errors using our checklist in the past 18 months. It works.

The 3 Mistakes Your Checklist Must Catch

1. Assuming "Paper Bag Machine" Means Any Paper

This is the most frequent and frustrating specification error. You'd think submitting a file labeled for a "paper bag making machine" would be enough, but it's not. The surprise wasn't the machine type—it was the substrate limitation.

I once ordered 8,000 custom retail bags with a nice, textured recycled paper stock. Our design had fine detail. The vendor's paper bag making machine for various paper materials could handle the stock weight, but the textured surface caused the ink to spread, blurring all our small text. We caught the error when the first production sample arrived. $1,800 wasted, credibility damaged, lesson learned: Always submit a physical paper sample or get a print test on your exact chosen material before full production.

Industry standard print resolution for commercial work like this is 300 DPI at final size. But on highly textured or uncoated papers, you might need to simplify detail. Reference: Print Resolution Standards.

Looking back, I should have asked for a printed proof on the actual stock. At the time, I trusted the digital proof on my calibrated monitor. It wasn't enough.

2. Forgetting the "Window" is a Separate Production Step

This one feels obvious in hindsight, but it trips up so many people. A paper bag making machine for making paper bags with window patches often runs the window application as a separate, offline process. If your artwork doesn't account for this, you get misaligned windows or compromised graphics.

Our checklist now has a bold, red line for any bag with a window: "Confirm window patch die-cut location and clear zone requirements with vendor BEFORE finalizing artwork." The vendor who lists all fees upfront—even if the total looks higher—usually costs less in the end. One quote might bake in the window setup, another might add a $75-150 die-cutting setup fee later. Ask "what's NOT included" before "what's the price."

3. Misunderstanding "V-Bottom" Machine Capabilities

This is the technical one. A v bottom paper bag making machine creates a specific, flat-bottomed bag structure that's great for stability. The mistake? Assuming it can handle any bottom panel design or reinforcement.

We designed a bag with a full-color, complex illustration that extended across the entire bottom panel. The machine's folding and gluing process for the V-bottom seam destroyed the center of the image. The most frustrating part? The same file worked perfectly on a sample from a different machine type. You'd think a bag machine makes a bag, but the mechanics matter immensely.

If I could redo that decision, I'd have requested a blank sample bag from the exact machine to be used and drawn on it to see the glue and fold lines. But given what I knew then—just the machine name—my choice was reasonable, if wrong.

Our Simple Pre-Submission Checklist (Steal This)

This is what we tape to our monitors. It's not comprehensive, but it catches 90% of costly errors.

• File & Specs:
  • Is the dieline file separate from the artwork? (It should be)
  • Have we confirmed the final file is in the correct color mode (CMYK, not RGB)?
  • Are all fonts outlined or embedded?
  • Is the resolution 300 DPI at 100% size?
• Material & Machine:
  • Have we received and approved a physical print proof on the EXACT material being used?
  • For paper: Have we verified the paper weight/type works with the specified machine's capabilities?
  • For windows/patches: Are the clear zones and die-cut lines confirmed on the provided dieline?
  • For V-bottom/flat-bottom bags: Have we seen a sample from this specific machine to understand glue/fold zones?
• Quote & Logistics:
  • Does the quoted price include ALL setup fees (plate, die-cut, Pantone match)?
  • Is the delivery date based on production start or shipment date?
  • Have we budgeted for and approved any rush fees? (Next-day can be +50-100%. Based on major online printer fee structures, 2025.)

When This Advice Doesn't Apply (The Boundaries)

This checklist is built from my experience in mid-volume B2B custom packaging—orders from 1,000 to 50,000 units. It's been pretty reliable in that space.

That said, if you're doing ultra-high-volume runs (like 500,000+), your vendor should have a much more rigorous technical review process, and some of this might be redundant. Conversely, if you're ordering 50 stickers from an online maker, this is overkill—their automated systems will flag most issues. This is for the messy middle where customization meets scale.

Also, my horror stories are with custom, print-to-order items. If you're buying standard, stock packaging, the tolerance for error is different. The core principle remains: verify the physical output against your specific machine and material before committing the full order. It's the one step that saves the most money and face.