In stock SKU RM6WGTIN 841436023887

13x18 White Chipboard Tab Lock Stayflats Mailers 100/Case

Protect high-value shipments with professional-grade 13x18 white stayflat mailers. Engineered from .028 chipboard with tab lock closure for guaranteed security–no additional stiffeners required. Lightweight design reduces postage costs while maintaining rigid protection for documents, photos, and e-commerce merchandise.
$80.37 / case of 100$0.80 per mailer
= 100 mailers · Item subtotal $80.37

Before shipping and tax. Final discounts and total are confirmed in the cart.

Request bulk pricing
Volume pricing — applied automatically in the cart
Quantity (case)Item-subtotal discount
1–2Base item price
3–53% 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 13" × 18"
Board / material .028 Chipboard
Color White
Freight class Class 60

Specifications

Inside dimensions13" × 18" (L × W)
Board / material.028 Chipboard
ColorWhite
Sold asCase of 100
Physical units per order increment100 (one case)
Case weight41.14 lb
Outer carton (shipping)21.25 × 13.5 × 9.75 in
LTL freight classClass 60
GTIN841436023887
SKURM6W

About this item

SKU RM6W — 13" × 18", .028 Chipboard, White. Sold as a case of 100, shipped from US warehouses.

The 13x18 White Chipboard Tab Lock Stayflats Mailers 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 13" x 18"; white material; 100/Case. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.

Compare nearby options

Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.

Professional-grade 14.5x19" poly mailers built for e-commerce brands that demand reliability. Each self-seal mailer features 2.5mil polyethylene construction with puncture, water, and tear resistance to protect products in transit. Case of 100 white mailers with silver lining for easy label application.Larger size 14.5x19 White Self-Seal Poly Mailers 100-Pack SKU B876100PK · CASE $46.07Professional white stayflat mailers featuring rigid .028 chipboard construction and secure tab lock closure. Ideal for e-commerce brands shipping photos, documents, and flat goods without additional protective padding. 11 x 13.5" format, 100 mailers per case.Smaller size 11x13.5 White Chipboard Tab Lock Stayflats Mailers 100/Case SKU RM3W · CASE $59.15Professional-grade 13 x 18" kraft self-seal Stayflats Plus® mailers protect documents and photos without additional stiffeners. Made from .028 chipboard with peel-and-seal closure and easy pull-tab tear strip. Ships by the case of 100 to reduce postage costs.Same size, different spec 13x18 Kraft Self-Seal Stayflats Plus Mailers 100/Case SKU RM6K · CASE $92.08Premium 13x18" white self-seal chipboard mailers designed for e-commerce brands shipping documents, photos, and light merchandise. .020 chipboard construction provides puncture resistance and professional presentation without additional stiffeners. Peel-and-seal closure with pull-tab tear strip–ship 100 per case.Same size, different spec 13x18 Self-Seal Chipboard Stayflats Mailers 100/Case SKU RM18SS · CASE $114.06

Frequently bought with

Light add-ons for this order: tape, labels, dispensers and packing-list envelopes.

Common questions

Is this the right mailer for my order?
Use 13x18 White Chipboard Tab Lock Stayflats Mailers - 100/Case when your item or workflow matches small shipments where the item fits the listed usable mailer size and does not require a carton. Check the live product page against your needs before ordering.
What specs should I confirm before checkout?
Confirm usable size, material, cushioning, closure, and case quantity. This listing is summarized by size: 13 x 18 in; material: paper; quantity: 100/Case. Use the current SKU, variant, price, availability, and delivery options shown on the product page.
Can I request this for a larger or repeat order?
Yes. For larger quantities, mixed-SKU orders, or recurring supply, send Packrift the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing.
How should I plan delivery for this item?
Delivery options and timing are shown at checkout based on the item, quantity, warehouse, and destination. For larger, freight-sensitive, or mixed-SKU orders, request a quote before placing the order.

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.

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