Custom Boxes vs Catalog Boxes: Finding the Crossover Point

Catalog boxes are fast, flexible, and require no commitment. Custom boxes are sized to your product, can reduce void fill, and sometimes cost less per unit at volume. Most buyers who only use one or the other are leaving something on the table. Here's how to figure out which makes sense for you.

When catalog boxes are the right call

Stock boxes make sense when volume is low, when your shipment mix is too varied for a single custom box to cover, or when lead time flexibility matters more than per-unit cost.

If you're shipping fewer than a few hundred of any one configuration per month, the economics of a custom run rarely pencil out. Minimum order quantities on custom corrugated are typically 250-500 pieces per size, and the setup cost gets spread across that minimum. At low volumes, catalog wins. Single-wall vs. double-wall: which do you need?

Catalog also makes sense when your product sizes vary enough that a single custom box won't fit most of them. If you'd need five custom sizes to cover your product line, the operational complexity probably isn't worth it.

The two reasons to go custom

There are really two reasons custom boxes make financial sense: size efficiency and branding.

Stick with catalog when...

• Shipping fewer than ~250-500 units/month of one configuration
• Product mix too varied for one custom box to cover
• Spec or product changes frequently
• Lead time flexibility matters more than unit cost

Go custom when...

• Catalog box is significantly oversized (2+ inches in any dimension)
• Adding dunnage to fill void space every shipment
• Paying dimensional weight charges on shipments
• Volume is consistent enough to amortize setup cost

Size efficiency means the box is sized to your product, which reduces void fill, reduces cube waste in shipping, and sometimes reduces the box weight. If you're shipping a product in a catalog box that's two inches too big in each dimension, you're paying to ship air, buying dunnage to fill the gap, and potentially taking on extra freight cube charges. What size shipping box do you actually need?

Branding means the box carries your logo or messaging. That matters for direct-to-consumer shippers and companies where the unboxing experience is part of the product. For industrial B2B shipping, it's usually not the driver.

How to calculate the crossover volume

The crossover is where the total cost of custom boxes drops below the total cost of catalog boxes, once you account for void fill and any shipping cube premium.

Example crossover calculation

Setup cost (first run)

$300-500

Die and plates for a basic RSC box

Minimum run

250-500 pieces

Setup cost per box: $0.60-$1.00 on first run, near zero on repeats

Break-even example

2-3 runs

If saving $0.30/box on dunnage + cube, 500-box run saves $150/run

Void fill math: If you're using $0.15 of dunnage per shipment and shipping 2,000 units a month, that's $300/month in void fill. If a custom box eliminates most of that, the tooling cost pays back quickly on repeat orders.

Minimum runs and lead times

Custom corrugated boxes typically need 7 business days of production lead time. For repeat orders, ask Atlas about carrying stock against a blanket order to reduce lead time on reorders.

Minimum run quantities depend on box size and complexity. Simple RSC styles have lower minimums than specialty styles with custom features.

Atlas sells catalog and custom boxes. If you want to run the numbers on your current box cost versus a custom alternative, we'll quote both and show you the comparison.

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