9.75x12.25 White Chipboard Rigid Tab Lock Mailers 100/Case RM5W
$52.68
/ case of 100$0.53 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 3/4" × 12 1/4"
Board / material
.028 Chipboard
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 9 3/4" × 12 1/4" (L × W) |
|---|---|
| Board / material | .028 Chipboard |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 100 |
| Case weight | 20.84 lb |
| Outer carton (shipping) | 15.25 × 10.25 × 10.25 in |
| LTL freight class | Class 60 |
| SKU | RM5W |
About this item
SKU RM5W — 9 3/4" × 12 1/4", .028 Chipboard, White. Sold as a case of 100, shipped from US warehouses.
9.75x12.25" white chipboard mailers in rigid chipboard, packed 100 per case (SKU RM5W); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the case of 100.
Nearby exact-spec options
Use these when the size, material, pack quantity, or workflow is close but not identical.
Common questions
Why choose tab lock closure over self-seal or adhesive options?
Tab lock closure delivers professional security, consistent resealing for returns or exchanges, and eliminates moisture sensitivity issues common with adhesive mailers. The mechanical closure provides visible tamper evidence and accommodates humid warehouse environments without performance degradation.
How does.028 chipboard thickness compare to competitors?
This thickness provides optimal balance between weight (lower postage) and protection (no additional stiffeners needed). It exceeds standard fiberboard for bend resistance while maintaining cost-efficiency for high-volume e-commerce operations.
Are these mailers suitable for international shipping?
Yes. The puncture-resistant chipboard and tab lock closure protect contents during rough international handling. The white surface accommodates shipping labels and customs declarations without adhesive issues.
Can I use these for heavier items like small electronics or books?
These mailers are optimized for lightweight to medium items (photos, documents, small merchandise). For heavier products exceeding 2 lbs, consider thicker gauge mailers or padded alternatives to ensure integrity during transit.
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.