---
title: "What’s the best way to choose a poly mailer size?"
url: "https://www.shipstation.com/faq/whats-the-best-way-to-choose-a-poly-mailer-size/"
type: "faq"
modified: "2026-04-03T16:34:16-05:00"
---
Measure your common order stacks, not just a single item. Build two or three standard sizes, then save them as custom package types in ShipStation. That keeps your labels accurate and repeatable.