13 x 18" White Stayflats® Mailers
- Manufactured from white chipboard.
- Lightweight to save on postage.
- No additional stiffeners needed.
- Tab lock closure.
Stock Number | Pricing |
|---|---|
| Stock NumberRM6W | Pricing |

Outside Dimensions W x L: 13 x 18"
Thickness: .028
Quantity Per Case: 100
Order in Multiples of: 1
Freight Class: 60
Weight: 41.14 EA
NMFC Code: 20475-11
Ships Parcel: Yes
The 13 x 18" White Stayflats® Mailer is a tab lock chipboard mailer engineered to keep flat contents rigid and undamaged in transit. White chipboard construction provides built-in stiffness, eliminating the need for separate stiffeners and keeping the mailer lightweight without sacrificing protection.
These mailers are a practical fit for e-commerce fulfillment, retail distribution, print shops, and photography studios that regularly ship photos, prints, documents, certificates, artwork, and promotional materials. The tab lock closure secures contents without tape or additional materials, reducing pack-out time and supply consumption.
Interior dimensions are 13" W x 18" L. Each case contains 100 mailers, and the parcel-friendly construction integrates easily into standard small-parcel outbound workflows.
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