Mailer Boxes

SELECTION EXPERT ADVICE

Self-Locking vs Tape-Seal Mailer Formats
MORE INFO
Self-locking mailer boxes close without tape using interlocking tabs, which speeds up packing on high-volume lines and creates a cleaner, more professional appearance. Tape-sealed formats allow more flexibility in fill height and can handle slightly oversized contents that exceed the box depth without a visible gap at the closure.
Size Selection for Common Product Categories
MORE INFO
Literature mailers suit flat, rigid items like books, catalogs, and framed prints. Garment mailers handle folded clothing and accessories efficiently. Multimedia mailers are sized for CDs, DVDs, and gaming cartridges. Choosing the right format for your specific product eliminates wasted space and reduces the cushioning material needed to fill the gap.
Mailer Boxes for Branded DTC Packaging
MORE INFO
Branded mailer boxes with consistent dimensions create a repeatable unboxing experience that can be photographed, shared, and recognized as part of your brand identity. Standardizing on one or two mailer sizes across your product line simplifies procurement, reduces pack station training time, and lowers your per-unit packaging cost.

Need help choosing a mailer box?

Decide between a mailer box and a poly or bubble mailer

Use these buying guides to choose the right format for your product weight, protection level, and unboxing experience.

Mailers Guide → Poly vs bubble vs rigid mailers Mailer vs Box Selector → When a mailer is enough and when you need a box
Overview

644 corrugated mailer boxes from 4 to 30 inches: white and kraft literature mailers, self-seal tab-lock and ECT-32 styles in packs of 10, 25 and 50. Inside dimensions and board grade are listed on each box. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

Buying path

Buy Mailer Boxes by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

Save the SKU or product link for repeat purchasing and support questions.

Larger orders

For pallet, recurring, or mixed-SKU needs, send support the details before placing a large order.

What to check first

  • Inside dimensions
  • Board grade or strength rating
  • Box style and closure
  • Case or bundle quantity
Common wrong-order risk: Choosing the outside size instead of the inside size. Confirm product fit, void fill, and storage space before ordering.
Use the box size calculator -> Contact support for larger orders -> Compare corrugated box types -> View products below ->
IN STOCK Ship marketing materials and documents with professional confidence using these 13x10x1.25
Boxes - Mailers

13x10x1.25 White Corrugated Literature Mailers 50/Bundle

PN: ML13101

13 x 10 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$78.23 / BUNDLE
IN STOCK Professional white literature mailers sized 12.5
Boxes - Mailers

12.5x5x3 White Corrugated Literature Mailers 50/Bundle

PN: ML1253

12 1/2 x 5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$66.84 / BUNDLE
IN STOCK Premium white corrugated literature mailers (12 1/8
Boxes - Mailers

12 1/8 x 9 1/4 x 6 1/2 in White Corrugated Literature Mailers 50-Pack

PN: ML1296

12 1/8 x 9 1/4 x 6 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$140.52 / BUNDLE
IN STOCK Ship literature, catalogs, and promotional materials with confidence. These 12 1/8x9 1/4x6 white corrugated mailers feature crush-resistant ECT-32-B construction and secure fold-and-tuck tabs for professional presentation every time. Quick assembly, no extra supplies needed–50 mailers per bundle.
Boxes - Mailers

12 1/8 x 9 1/4 x 6 in White Corrugated Literature Mailers Crush Resistant 50/Bundle

PN: M1296

12 1/8 x 9 1/4 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$163.19 / BUNDLE
IN STOCK Ship marketing materials and literature with confidence using these crush-resistant white corrugated mailers. Quick fold-and-tuck assembly requires no additional supplies, and snug-fitting tabs ensure secure closure. Each bundle includes 50 professionally constructed ECT-32-B literature mailers in the 12 1/8 x 9 1/4 x 5
Boxes - Mailers

12 1/8 x 9 1/4 x 5 in ECT-32-B White Corrugated Literature Mailers 50-Pack

PN: M1295

12 1/8 x 9 1/4 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$113.17 / BUNDLE
IN STOCK Professional white corrugated literature mailers (12 1/8
Boxes - Mailers

12 1/8 x 9 1/4 x 4 in White Corrugated Literature Mailers Self-Seal 50/Bundle

PN: M1294

12 1/8 x 9 1/4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$87.62 / BUNDLE
IN STOCK Professional-grade white corrugated literature mailers sized 12 1/8 x 9 1/4 x 3 with self-sealing tabs for secure, professional presentation. ECT-32-B construction delivers crush-resistant protection–no additional supplies needed. 50-box bundle ready to ship.
Boxes - Mailers

12 1/8 x 9 1/4 x 3 in White Corrugated Literature Mailers 50/Bundle

PN: M1293

12 1/8 x 9 1/4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$69.77 / BUNDLE
IN STOCK Professional-grade white corrugated literature mailers sized 12 1/8 x 9 1/4 x 2
Boxes - Mailers

12 1/8 x 9 1/4 x 2 in White Corrugated Literature Mailers 50-Pack

PN: M1292

12 1/8 x 9 1/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$54.21 / BUNDLE
IN STOCK Economical white corrugated literature mailers with self-sealing tabs for professional presentation without custom carton costs. ECT-32-B construction resists crushing and punctures. Fast assembly–no additional supplies needed. Bulk 50-pack.
Boxes - Mailers

12 1/8 x 9 1/4 x 1 1/4 in White Corrugated Literature Mailers 50-Pack

PN: ML1291R

12 1/8 x 9 1/4 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$80.51 / BUNDLE
IN STOCK Protect and present your marketing materials with professional white literature mailers designed for e-commerce brands. These 12 1/8 x 9 1/4 x 1 corrugated mailers feature crush-resistant ECT-32-B construction and secure fold-and-tuck tabs–no additional supplies required. Bundle of 50 delivers the perfect fit without custom carton costs.
Boxes - Mailers

12 1/8 x 9 1/4 x 1 in ECT-32-B White Corrugated Literature Mailers 50-Pack

PN: ML1291

12 1/8 x 9 1/4 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$56.63 / BUNDLE
IN STOCK Ship catalogs, brochures, and marketing materials with confidence. These 12x12x6 white corrugated mailers feature self-sealing tabs for secure closure and crush-resistant ECT-32-B construction. Bundle of 50 requires zero additional supplies–fold, fill, seal, ship.
Boxes - Mailers

12x12x6 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML12126

12 x 12 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$186.85 / BUNDLE
IN STOCK Professional-grade 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.
Boxes - Mailers

12x12x4 White Corrugated Literature Mailers 50-Pack M12124

PN: M12124

12 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$119.25 / BUNDLE
IN STOCK Professional-grade 12x12x3 white corrugated mailers designed for e-commerce brands shipping marketing materials, catalogs, and promotional items. Strong ECT-32-B construction with secure tuck-and-fold tabs ensures damage-free delivery. Bundle of 50 boxes ready to assemble–no additional supplies required.
Boxes - Mailers

12x12x3 White Corrugated Literature Mailers 50/Bundle ML12123

PN: ML12123

12 x 12 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK Ship your marketing materials in style with these 12x12x2 white corrugated literature mailers. Built from durable ECT-32-B material, they feature secure fold-and-tuck tabs and require zero additional supplies for assembly. Perfect for e-commerce brands needing professional, crush-resistant mailing boxes in bulk–50 boxes per bundle.
Boxes - Mailers

12x12x2 White Corrugated Literature Mailers 50-Pack

PN: M12122

12 x 12 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$73.68 / BUNDLE
IN STOCK Ship marketing materials and documents in style with these professional 12x12x1.25 white corrugated literature mailers. Featuring snug-fitting self-seal tabs for secure closure and crush-resistant ECT-32-B construction, each bundle of 50 requires zero additional supplies–just fold, tuck, and ship. Perfect for e-commerce brands that demand professional presentation without custom carton costs.
Boxes - Mailers

12x12x1.25 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML12121

12 x 12 x 1 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK Pre-sized white corrugated literature mailers eliminate custom carton costs while maintaining professional presentation. ECT-32-B construction resists crushing and puncture damage during shipping. Quick fold-and-tuck assembly requires no additional supplies–get 50 mailers per bundle.
Boxes - Mailers

12x11.75x3.25 White Corrugated Literature Mailers 50-Pack

PN: M3RBXL

12 x 11.75 x 3 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$94.94 / BUNDLE
IN STOCK Professional 12x9x3 white literature mailers built from durable ECT-32-B corrugated material. Self-sealing tuck tabs require no additional supplies–just fold and ship. Sold in bundles of 50 for cost-effective bulk ordering.
Boxes - Mailers

12x9x3 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML1293

12 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$106.34 / BUNDLE
IN STOCK Ship literature, catalogs, and promotional materials with confidence using these 12x9x2 white corrugated mailers. Featuring ECT-32-B crush-resistant construction and a secure tab-and-slot closure that requires no additional supplies. Sold in convenient bundles of 50–the cost-effective alternative to custom cartons.
Boxes - Mailers

12x9x2 White Corrugated Literature Mailers 50/Bundle

PN: ML1292R

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE
IN STOCK Professional white corrugated literature mailers sized 11.75
Boxes - Mailers

11.75x10.75x4 White Corrugated Literature Mailers 50-Pack

PN: M11104

11 3/4 x 10.75 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$120.77 / BUNDLE
IN STOCK Professional white corrugated literature mailers sized 11 3/4 x 10 3/4 x 2 1/4 inches–the ideal solution for e-commerce brands shipping catalogs, brochures, and promotional materials without custom carton costs. Strong ECT-32-B construction with secure self-seal tuck tabs. Sold as a bundle of 50, ready to assemble and ship immediately.
Boxes - Mailers

11.75x10.75x2.25 White Corrugated Literature Mailers 50-Pack

PN: M3RB

11 3/4 x 10.75 x 2 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$44.05 / BUNDLE
IN STOCK Ship marketing materials and product literature with professional presentation using these 11.5x11.5x3.75
Boxes - Mailers

11.5x11.5x3.75 White Corrugated Literature Mailers 50-Pack

PN: M11113

11 1/2 x 11 1/2 x 3 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 6
Boxes - Mailers

11 1/8 x 8 3/4 x 6 in White Corrugated Literature Mailers 50/Bundle

PN: M1186

11 1/8 x 8 3/4 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$120.77 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 5
Boxes - Mailers

11 1/8 x 8 3/4 x 5 in White Corrugated Literature Mailers 50/Bundle

PN: M1185

11 1/8 x 8 3/4 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$103.30 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 4
Boxes - Mailers

11 1/8 x 8 3/4 x 4 in White Corrugated Literature Mailers Self-Seal 50/Bundle M1184

PN: M1184

11 1/8 x 8 3/4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$83.22 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 3
Boxes - Mailers

11 1/8 x 8 3/4 x 3 in White Literature Mailers 50-Pack

PN: M1183

11 1/8 x 8 3/4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$68.69 / BUNDLE
IN STOCK 11 1/8x8 3/4x2 5/16
Boxes - Mailers

11 1/8 x 8 3/4 x 2 5/16 in White Corrugated Literature Mailers 50-Pack

PN: M1182D

11 1/8 x 8 3/4 x 2 5/16 in ECT-32-B Corrugated 50 PER BUNDLE
$60.76 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 2
Boxes - Mailers

11 1/8 x 8 3/4 x 2 in ECT-32-B White Corrugated Literature Mailers 50-Pack

PN: M1182

11 1/8 x 8 3/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$53.47 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 1
Boxes - Mailers

11 1/8 x 8 3/4 x 1 in ECT-32-B White Corrugated Literature Mailers 50-Pack

PN: ML1181

11 1/8 x 8 3/4 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$61.85 / BUNDLE
IN STOCK Professional-grade 11x11x2 white corrugated literature mailers designed for e-commerce brands shipping catalogs, samples, and promotional materials. Strong ECT-32-B construction with self-sealing tabs ensures secure closure and damage-free delivery. 50-count bundle ships ready to assemble–no additional packing supplies required.
Boxes - Mailers

11x11x2 White Corrugated Literature Mailers 50-Pack

PN: ML11112

11 x 11 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$84.31 / BUNDLE
IN STOCK Professional white literature mailers sized at 11
Boxes - Mailers

11x10x4 White Corrugated Literature Mailers 50/Bundle

PN: ML11104

11 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$103.30 / BUNDLE
IN STOCK Ready-to-ship white corrugated literature mailers sized at 11x6.5x2.75
Boxes - Mailers

11x6.5x2.75 White Corrugated Literature Mailers 50-Pack

PN: M1162

11 x 6.5 x 2 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$54.68 / BUNDLE
IN STOCK 10.25 x 8.25 x 4
Boxes - Mailers

10.25x8.25x4 White Corrugated Literature Mailers 50-Pack

PN: ML1084

10 1/4 x 8.25 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$100.60 / BUNDLE
IN STOCK 10.25x8.25x2 White Corrugated Literature Mailers - 50 Pack
Boxes - Mailers

10.25x8.25x2 White Corrugated Literature Mailers 50-Pack

PN: ML1082

10 1/4 x 8.25 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$58.49 / BUNDLE
IN STOCK 10x10x4
Boxes - Mailers

10x10x4 White Corrugated Literature Mailers 50-Pack M10104

PN: M10104

10 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK Professional 10x10x3 white corrugated mailers designed for e-commerce brands shipping literature, catalogs, and flat products. ECT-32-B crush-resistant construction with secure tuck-and-fold closure requires no additional supplies. Sold as a bundle of 50 mailers.
Boxes - Mailers

10x10x3 White Corrugated Literature Mailers 50-Pack

PN: ML10103

10 x 10 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$91.91 / BUNDLE
IN STOCK Professional 10
Boxes - Mailers

10x10x2 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: M10102

10 x 10 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$56.21 / BUNDLE
IN STOCK Professional-grade white literature mailer in 10x9x4 dimensions with sturdy ECT-32-B corrugated construction and self-sealing tabs for secure closure. One-piece fold-and-tuck design assembles in seconds without additional supplies or equipment. Sold as a bundle of 50 crush-resistant mailers perfect for e-commerce brands shipping marketing materials, catalogs, and promotional items.
Boxes - Mailers

10x9x4 White Corrugated Literature Mailers 50/Bundle

PN: ML1094

10 x 9 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$153.52 / BUNDLE
IN STOCK 10x9x3 White Corrugated Literature Mailers, 50-Pack
Boxes - Mailers

10x9x3 White Corrugated Literature Mailers 50-Pack

PN: ML1093

10 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$84.31 / BUNDLE
IN STOCK 10x9x2 White Literature Mailers ECT-32 Corrugated - 50-Pack
Boxes - Mailers

10x9x2 ECT-32 White Corrugated Literature Mailers 50-Pack

PN: ML1092

10 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$61.52 / BUNDLE
IN STOCK 10x8x3 White Corrugated Literature Mailers - Self-Seal, 50 Pack
Boxes - Mailers

10x8x3 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML1083

10 x 8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$71.40 / BUNDLE
IN STOCK 10x4x3 White Literature Mailers, ECT-32-B Corrugated, 50-Count Bundle
Boxes - Mailers

10x4x3 ECT-32-B White Corrugated Literature Mailers

PN: ML1043

10 x 4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE
IN STOCK 10x3x3 White Corrugated Literature Mailers - Self-Seal, 50/Bundle
Boxes - Mailers

10x3x3 White Self-Seal Corrugated Literature Mailers 50/Bundle

PN: ML1033

10 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$48.61 / BUNDLE
IN STOCK Ready-to-use white corrugated literature mailers sized perfectly at 9
Boxes - Mailers

9x9x4 White Corrugated Literature Mailers 50-Pack

PN: ML994

9 x 9 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$88.87 / BUNDLE
IN STOCK Professional 9
Boxes - Mailers

9x9x3 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: M993

9 x 9 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$66.84 / BUNDLE
IN STOCK Ship literature, documents, and promotional materials with professional confidence using these 9x9x2 white corrugated literature mailers. Features self-sealing tabs that fit snugly for secure closure and strong ECT-32-B corrugated construction that resists crushing. Bundle of 50 ready to fold and ship.
Boxes - Mailers

9x9x2 White Self-Seal Corrugated Literature Mailers 50/Bundle

PN: ML992

9 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$51.65 / BUNDLE
IN STOCK Professional 9
Boxes - Mailers

9x8x2 White Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML982

9 x 8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$47.09 / BUNDLE
IN STOCK Professional-grade 9x7.5x3 white corrugated literature mailers designed for e-commerce brands shipping catalogs, brochures, and marketing materials. Heavy-duty ECT-32-B construction delivers crush resistance and reliable protection in a fold-and-tuck format requiring no additional supplies. Bundle of 50 mailers ready to ship.
Boxes - Mailers

9x7.5x3 ECT-32-B White Corrugated Literature Mailers 50/Bundle

PN: ML973

9 x 7.5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$58.49 / BUNDLE
IN STOCK Ship marketing materials and catalogs with professional impact using these crush-resistant 9x6.5x6 white corrugated mailers. One-piece fold-and-tuck design requires no additional supplies–just assemble and ship. Strong ECT-32-B corrugated construction protects contents while snug-fitting tabs ensure secure closure every time. Bundle of 50 units.
Boxes - Mailers

9x6.5x6 White Corrugated Literature Mailers 50-Pack

PN: ML966

9 x 6.5 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$130.64 / BUNDLE

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