9x11.5" White Chipboard Self-Seal Mailers - Professional Protection, 25 Pack
$17.76
/ case of 25$0.71 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9" × 11 1/2"
Board / material
.020 Chipboard
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 9" × 11 1/2" (L × W) |
|---|---|
| Board / material | .020 Chipboard |
| Color | White |
| Sold as | Case of 25 |
| Order in multiples of | 25 |
| Case weight | 5.16 lb |
| Outer carton (shipping) | 14.0 × 9.5 × 3.0 in |
| LTL freight class | Class 60 |
| GTIN | 841436049405 |
| SKU | RM2SS25PK |
About this item
SKU RM2SS25PK — 9" × 11 1/2", .020 Chipboard, White. Sold as a case of 25, shipped from US warehouses.
The 9x11.5" White Chipboard Self-Seal Mailers - Protection is a rigid chipboard mailer for photos, prints, documents, calendars, certificates, and flat items that should not ship in a soft envelope. Listed specs include size 9" x 11.5"; white material; case of 25. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Common questions
Do these mailers require any additional sealing tape or adhesive?
No. The Stayflats Plus mailers feature a built-in peel-and-seal closure that activates on contact. Simply peel the backing and press to seal, no tape, glue, or moisture required. This speeds up fulfillment and eliminates supply chain complexity.
Will these mailers protect delicate items like photos and documents?
Yes. The.020 chipboard construction provides rigid, puncture-resistant protection that prevents bending, creasing, and crushing during handling and transit. The sturdy flat design maintains item integrity from your warehouse to your customer's doorstep.
How does the tear strip work, and is it easy for customers to open?
The integrated pull tab tear strip allows customers to open the mailer cleanly and quickly without tools or excessive force. This creates a professional unboxing experience while protecting contents until delivery.
What size items fit in a 9 x 11 1/2" mailer?
This size accommodates standard letter-size documents (8.5 x 11"), 4x6 photographs, small product samples, apparel items, and flat merchandise up to approximately 1/4" thick without buckling. The flat profile makes it ideal for anything requiring a polished, professional presentation.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.