9x6 Kraft Gummed Envelopes 28lb - Secure Seal, Case of 2500
$380.56
/ case of 2500$0.15 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9" × 6"
Board / material
28 lb. Paper Stock
Color
Kraft
Freight class
Class 78
Specifications
| Inside dimensions | 9" × 6" (L × W) |
|---|---|
| Board / material | 28 lb. Paper Stock |
| Color | Kraft |
| Sold as | Case of 2500 |
| Order in multiples of | 1 |
| Case weight | 53.34 lb |
| Outer carton (shipping) | 20.0 × 16.0 × 14.5 in |
| LTL freight class | Class 78 |
| GTIN | 50085227407653 |
| SKU | EN1020 |
About this item
SKU EN1020 — 9" × 6", 28 lb. Paper Stock, Kraft. Sold as a case of 2500, shipped from US warehouses.
The 9x6 Kraft Gummed Envelopes 28lb - Secure Seal is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 9" x 6"; kraft material; 28lb; case of 2500. 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 envelopes require water activation for sealing?
No. These envelopes feature pre-applied heavy-duty gum that activates with light moisture or pressure, simply lick the flap or use a sponge applicator. This speeds up mailroom processing and eliminates the need for gum dispensers.
Are these envelopes compliant with USPS and international postal standards?
Yes. The 9" x 6" size and 28 lb. kraft paper meet USPS regulations for standard mail and flats. The opaque material and secure gummed closure satisfy privacy and tamper-detection requirements.
What documents are best suited for 9" x 6" envelopes?
These envelopes accommodate standard letter-size paper (8.5" x 11") folded once, or documents up to 9" x 6" unfolded. Ideal for invoices, statements, contracts, legal notices, and confidential correspondence.
How does bulk purchasing affect my cost per envelope?
Purchasing by the case (2,500 units) significantly reduces per-unit costs compared to retail packs. For high-volume mailers, this bulk format delivers 40-60% savings versus smaller quantities while maintaining consistent supply for ongoing operations.
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.