Uline S-4418 Equivalent: 36 x 12 x 12" Long Boxes (10-pack)
Model-to-size mapping verified against Uline’s published catalog listings on July 31, 2026; the Packrift price below is our live catalog price.
Uline model S-4418 is a 36 x 12 x 12" long box per Uline’s published listings. The Packrift exact-size equivalent — same length × width × height, same grade class — is 36x12x12 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 10, priced at $58.91 per 10-pack ($5.89 per box) today.
| Size | Grade class | Pack | Price today | Per box | |
|---|---|---|---|---|---|
| Uline S-4418 | 36 x 12 x 12" | Long Box | see your invoice | see your invoice | — |
| Packrift equivalent | 36 x 12 x 12" | Long Box | 10 | $58.91 | $5.89/box |
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Frequently asked questions
Is this the same box as Uline S-4418?
It matches S-4418’s published dimensions (36 x 12 x 12") in the same grade class, so it packs and stacks the same. It is not manufactured by or affiliated with Uline — when replacing a certified spec, match the certificate stamp printed on the box.
What if my Uline model isn’t listed here?
The cross-reference currently covers 634 verified models across boxes and mailers. Enter yours in the lookup tool, or request a quote with the model number and we’ll match it by spec.
Uline is a registered trademark of Uline, Inc. Packrift is not affiliated with Uline; model numbers are referenced for size-compatibility comparison only.