Uline S-4636 Equivalent: 18 x 18 x 12" Multi-Depth Boxes (25-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-4636 is a 18 x 18 x 12" multi-depth box per Uline’s published listings. The Packrift exact-size equivalent — same length × width × height, same grade class — is 18x18x12 Heavy-Duty ECT-44 Kraft Corrugated Boxes - Bundle of 25, priced at $93.75 per 25-pack ($3.75 per box) today.
| Size | Grade class | Pack | Price today | Per box | |
|---|---|---|---|---|---|
| Uline S-4636 | 18 x 18 x 12" | Multi-Depth Box | see your invoice | see your invoice | — |
| Packrift equivalent | 18 x 18 x 12" | Multi-Depth Box | 25 | $93.75 | $3.75/box |
Reordering a different model? The cross-reference covers 634 verified models.
Look up a Uline modelBrowse the full index
Frequently asked questions
Is this the same box as Uline S-4636?
It matches S-4636’s published dimensions (18 x 18 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.