Product · CST-04
Custom-size mailers
Built to your dimensions — most programs start here.
Mailers made to your exact width and length, in poly or kraft — for the products that don't fit the catalog and the shippers tired of paying dimensional weight on air.
- Made to spec
- Any facing
- Fast sampling

The #000–#7 chart covers most parcels, but not yours if you ship calendars, apparel folios, oversized documents or an 18 × 21" product with no stock home. We build mailers to spec on the same laminated construction as our stock line: your dimensions, your facing, your closure.
Custom is routine here — the bag machines change over between sizes daily, and one-time setup is quoted transparently so you can see exactly what a bespoke size costs versus the nearest stock one.
Technical specifications
| Dimensions | To spec, from CD-size to oversize |
|---|---|
| Facings | Poly (4 colors) or kraft |
| Bubble lining | 3/16" or 1/8" bubble |
| Closure | Self-seal lip standard |
| Setup | One-time changeover, quoted upfront |
| Lead time | 2–4 weeks from confirmed spec |
Specifications are configurable — send your requirement and we'll quote to spec.
Common questions
What does a custom size cost versus stock?
Materials scale with dimensions; the difference is a one-time machine setup we quote upfront. On repeat volumes it amortizes to a rounding error.
Is there a minimum for custom sizes?
Yes, quoted per job — setup makes very small runs uneconomical, and we'd rather show you that math than hide it.
Custom-size mailers
Mailers made to your exact width and length, in poly or kraft — for the products that don't fit the catalog and the shippers tired of paying dimensional weight on air.
Get a quote or samples

