10" x 13.5" Stay Flat Envelope
Heavy duty 450 GSM rigid mailers sized for 9 x 12 art prints, oversized lookbooks and large documents. Peel and seal closure closes in seconds.
Description
The 10 x 13.5 stay flat envelope is sized for the items that do not quite fit in standard 9 x 12 mailers: 9 x 12 art prints, oversized lookbooks, large legal documents, magazine spreads and gallery prints that need room and rigidity. This 10 x 13.5 rigid mailer is made from 450 GSM heavy duty cardboard (a step up from the 420 GSM used in smaller sizes) because larger items put more stress on the envelope walls and benefit from the extra structural strength.
Inside, the 9.96 by 12.46 inch cavity holds 9 x 12 prints with comfortable margin, fits standard 8.5 x 11 documents loosely for multi-document shipments, and accommodates magazine sized lookbooks, catalogs and folded art prints. The 1.97 inch flap on the 10 x 13.5 rigid mailer folds back fully for fast loading, and the self-adhesive seal strip closes each mailer in seconds without tape, scissors or extra tools. The white, label-ready finish takes ink, stamps and shipping labels cleanly, and a built-in tear strip on the back delivers a clean, damage-free opening for the recipient.
This is the right size for art print sellers shipping 9 x 12 wall art, photographers delivering portfolio sets, gallery and frame shops mailing limited edition prints, publishers shipping oversized lookbooks and magazine issues, and offices that need to mail bundled letter size documents without folding. Every pack ships with 200 free Do Not Bend stickers, the 450 GSM cardboard is fully recyclable, and bulk packs of 30, 50 or 100 bring the per mailer cost down for businesses that ship the 10 x 13.5 stay flat envelope as part of their regular fulfillment.
Key Benefits
- Sized for 9 x 12 art prints, oversized lookbooks and bundled letter size document shipments
- Premium 450 GSM heavy duty cardboard for extra rigidity on larger items
- 200 free Do Not Bend stickers included in every pack for carrier visibility
- Self-adhesive peel and seal strip closes each mailer in seconds, no tape needed
- Built-in tear strip on the back gives recipients a clean, damage-free unboxing
Best For
- Art print sellers shipping 9 x 12 wall art, gallery prints and limited edition pieces
- Photographers delivering 9 x 12 portfolio prints and large portrait packages
- Gallery and frame shops mailing signed prints with certificates of authenticity
- Magazine and catalog publishers shipping oversized lookbooks and special issues
- Offices mailing bundled 8.5 x 11 document sets without folding or creasing
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