In Stock SKU: M12124

12x12x4 White Corrugated Literature Mailers - ECT-32-B, 50-Pack

12x12x4 white corrugated mailers designed for e-commerce brands shipping catalogs, brochures, and promotional materials. Features self-sealing tabs for secure closure and ECT-32-B crush-resistant construction that protects contents in transit. Bundle of 50 ready to assemble, no additional supplies required.

$95.69 / BUNDLE (50 PER BUNDLE)
Order timing and delivery options show at checkout
UPS Eligible — Ground & Freight
Confirm this specSKU M12124

12 x 12 x 4 corrugated mailers, sold as a 50-pack. Commonly used for documents, catalogs, samples, and flat pack shipments.

Size
12 x 12 x 4 in
Material
ECT-32-B Corrugated
Color
White
Sold as
BUNDLE (50 PER BUNDLE)
Freight class
125
Material
ECT-32-B Corrugated
Dimensions
12" L x 12" W x 4" H
Color
Oyster White
Good fit for

E-commerce brands shipping catalogs, brochures, and promotional materials need a professional, cost-effective mailing solution that arrives pristine. The 12 x 12 x 4" white literature mailer delivers the polished presentation of custom packaging without the custom price tag, with crush-resistant ECT-32-B corrugated construction that protects contents during transit.

Check before ordering

Confirm usable inside dimensions, closure type, color, and pack quantity.

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Best For

E-commerce brands shipping catalogs, brochures, and promotional materials need a professional, cost-effective mailing solution that arrives pristine. The 12 x 12 x 4" white literature mailer delivers the polished presentation of custom packaging without the custom price tag, with crush-resistant ECT-32-B corrugated construction that protects contents during transit.

How to Choose the Right Packaging

ECT-32-B corrugated material provides puncture and crush resistance, ensuring your literature arrives damage-free and maintains brand perception. One-piece fold-and-tuck design with snug-fitting tabs eliminates the need for additional sealing supplies, reducing assembly time and operational costs while enabling quick deployment at scale.

Specs at a Glance

MaterialECT-32-B Corrugated
Dimensions12" L x 12" W x 4" H
ColorOyster White
Quantity Per Bundle50 Mailers
RecyclableYes
Common Use Cases
  • Shipping marketing collateral and sales literature to retail partners Mailing product catalogs and specification sheets to B2B customers Distributing promotional inserts and seasonal marketing materials Packaging flat items like posters, prints, and unbound documents Corporate mailings for quarterly reports, announcements, and brand materials
What You'll Receive
  • 50 pre-scored, one-piece white literature mailers (12x12x4) Ready-to-assemble fold-and-tuck design with integrated closure tabs
Shipping & Packaging

Ships flat in compact bundles to minimize storage footprint. Bundle of 50 mailers arrives ready for immediate assembly and deployment.

Frequently Bought Together

Bundle & Save 5%

Frequently Asked Questions

No. The integrated tab system fits snugly within the mailer body to provide a secure, professional closure. No additional sealing supplies or equipment required, reducing assembly costs and time.

Yes. ECT-32-B (Edge Crush Test 32 pounds per inch) corrugated provides excellent puncture and crush resistance, safeguarding flat materials, catalogs, and brochures throughout the mail stream.

Absolutely. The blank oyster white surface is ideal for digital or flexographic printing, allowing you to reinforce brand identity and create a professional unboxing experience.

This mailer accommodates 8.5" x 11" catalogs, brochures, and flat promotional items up to approximately 3.5" thick, making it versatile for most standard marketing collateral and documents.

Technical Specifications

MaterialECT-32-B Corrugated
Dimensions12" L x 12" W x 4" H
ColorOyster White
Quantity Per Bundle50 Mailers
RecyclableYes
Color White
Strength / Material ECT-32-B Corrugated
Dimensions (Internal) 12"" × 12"" × 4"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

36.75" × 29.25" × 6.0" (L × W × D)

Unit of Measure

BUNDLE

Qty Per Shipping Unit

50 PER BUNDLE

LTL Freight Class

Class 125

Carrier Eligibility

UPS Ground & Freight Eligible

TRUST & RELIABILITY

Product Support

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Secure checkout LTL freight available on case/skid orders