13 x 18" Kraft Self-Seal Stayflats Plus® Mailers
- Manufactured from .028 kraft chipboard.
- Lightweight to save on postage.
- No additional stiffeners needed.
- Peel-and-seal closure.
- Pull tab tear strip for easy opening.
Stock Number | Pricing |
|---|---|
| Stock NumberRM6K | Pricing |

Outside Dimensions W x L: 13 x 18"
Thickness: .028
Quantity Per Case: 100
Order in Multiples of: 1
Freight Class: 60
Weight: 35.56 EA
NMFC Code: 20475-11
Ships Parcel: Yes
The 13 x 18" Kraft Self-Seal Stayflats Plus® Mailers are rigid flat mailers constructed from .028 kraft chipboard, delivering structural stiffness that protects flat contents in transit without requiring insert boards or corrugated backers. The self-contained rigidity keeps packaging prep simple and material costs low.
These mailers are well suited for e-commerce retailers, print studios, photographers, and distributors shipping large-format documents, artwork, prints, and photos that cannot be bent or folded. The 13 x 18" interior accommodates standard large-format materials and is a common fit for architectural drawings, presentation prints, and framed photo orders.
The peel-and-seal self-adhesive closure bonds securely without moisture activation, and a pull-tab tear strip allows recipients to open the mailer cleanly without tools. The lightweight chipboard construction helps manage postage costs at volume. Sold in cases of 100; parcel-friendly.
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