11x13.5 Kraft Self-Seal Stayflats Plus Mailers 100/Case
$65.52
/ case of 100$0.66 per mailer
Request bulk pricing
| Quantity (case) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
11" × 13 1/2"
Board / material
.028 Chipboard
Color
Kraft
Freight class
Class 60
Specifications
| Inside dimensions | 11" × 13 1/2" (L × W) |
|---|---|
| Board / material | .028 Chipboard |
| Color | Kraft |
| Sold as | Case of 100 |
| Physical units per order increment | 100 (one case) |
| Case weight | 23.72 lb |
| Outer carton (shipping) | 16.5 × 11.5 × 10.0 in |
| LTL freight class | Class 60 |
| GTIN | 841436023757 |
| SKU | RM3K |
About this item
SKU RM3K — 11" × 13 1/2", .028 Chipboard, Kraft. Sold as a case of 100, shipped from US warehouses.
Heavy-duty 11x13.5 " kraft self-seal Stayflats Plus® mailers deliver professional protection for e-commerce shipments without added stiffeners. Pre-scored.028 chipboard with peel-and-seal closure stays flat and resists puncture. Case of 100 reduces postage costs while maintaining brand presentation.
This listing is one specification only: 11x13.5" Kraft Self-Seal Stayflats Plus Mailers, 100 Case. The color is kraft only; it is not sold in white or any other color under this SKU.
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Larger size
11x16 Kraft Tab Lock Rigid Stayflats Mailers 100/Case
$71.07
Smaller size
9.5x13 Kraft Self-Seal Rigid Mailers 200/Case
$241.02
Same size, different spec
11x13.5 Kraft Tab Lock Stayflats Mailers 100/Case
$58.73
Same size, different spec
11x13.5 White Chipboard Self-Seal Mailers 100/Case
$70.86
Common questions
Do these mailers require tape, glue, or a sealing machine?
No. The peel-and-seal closure is built-in and ready to use. Simply peel the release strip and press to seal, no additional equipment, tape, or adhesives needed. This saves time in fulfillment and reduces labor costs.
Will these mailers protect documents and photos from bending or creasing?
Yes. The.028 kraft chipboard provides puncture and bend resistance, while the rigid construction prevents warping during transit. Products arrive in professional condition, reducing damage-related returns and customer complaints.
How much do these mailers weigh per unit, and will they increase postage costs?
These lightweight mailers weigh approximately 0.3 oz each, minimizing dimensional weight charges. Unlike bubble mailers or padded envelopes, you save on postage without sacrificing protection, ideal for high-volume shippers seeking margin improvement.
Are these mailers eco-friendly?
Yes. Kraft chipboard is 100% recyclable and made from sustainable materials, aligning with environmentally conscious brand values and reducing your carbon footprint per shipment.
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.