9.5x12.5 White Self-Seal Chipboard Stayflats Mailers 250/Case RM1EP
$124.42
/ case of 250$0.50 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 1/2" × 12.5"
Board / material
.012 Chipboard
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 9 1/2" × 12.5" (L × W) |
|---|---|
| Board / material | .012 Chipboard |
| Color | White |
| Sold as | Case of 250 |
| Order in multiples of | 250 |
| Case weight | 25.0 lb |
| Outer carton (shipping) | 13.25 × 12.0 × 11.75 in |
| LTL freight class | Class 60 |
| SKU | RM1EP |
About this item
SKU RM1EP — 9 1/2" × 12.5", .012 Chipboard, White. Sold as a case of 250, shipped from US warehouses.
9.5x12.5" white self-seal chipboard mailers in rigid chipboard, packed 250 per case (SKU RM1EP); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; the self-seal closure needs no tape. Order by the case of 250.
Common questions
Do I need tape or additional adhesive to seal these mailers?
No. The integrated peel-and-seal closure provides a complete, tamper-evident seal without tape, glue, or stiffeners. Simply peel back the strip and press to seal, use for fast-paced fulfillment operations.
Will these mailers work with standard postage and shipping carrier automation?
Yes. These mailers are designed to meet USPS, UPS, and FedEx specifications for flat mail processing. The.012 chipboard construction provides the rigidity needed for automated sorting without additional preparation.
How much postage can I save compared to padded alternatives?
The lightweight chipboard construction weighs significantly less than padded or bubble-lined mailers, reducing dimensional weight charges. For high-volume shippers, the cumulative postage savings translate to substantial quarterly cost reductions.
Can I load documents from the side like a traditional envelope?
Yes. The side-loading design allows you to insert and retrieve documents without tilting or forcing items through a top opening. This speeds up packing, reduces product damage, and improves the unboxing experience for recipients.
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.