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 lightweight, fragile items with confidence using these crush-resistant, one-piece white corrugated mailers. ECT-32-B rated for reliable protection with double-wall construction on front and sides. Fold-and-tuck design eliminates tape, glue, and staples–saving labor time and fulfillment costs per box.
Boxes - Mailers

4x3x1 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M431

4 x 3 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$23.55 / BUNDLE
IN STOCK Ship small, lightweight items with confidence using these ECT-32-B white corrugated mailers. The one-piece fold-and-tuck design delivers double-wall crush resistance on front and sides–no tape, glue, or staples required. Bundle of 50 mailers per case reduces per-unit costs and speeds fulfillment workflows.
Boxes - Mailers

4x2x2 ECT-32-B White Corrugated Mailers 50-Pack

PN: M422

4 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$13.84 / BUNDLE
IN STOCK ECT-32-B white corrugated mailers engineered for small-parcel efficiency. One-piece design folds in seconds–no tape, glue, or staples required. Double-wall crush-resistant construction protects lightweight fragile items while reducing dimensional weight charges.
Boxes - Mailers

3x3x3 ECT-32 White Corrugated Mailers 50-Pack

PN: M333

3 x 3 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$18.90 / BUNDLE
IN STOCK Ship small items safely with zero assembly hassle. These ECT-32-B white corrugated mailers feature a one-piece fold-and-tuck design that delivers double-wall protection on all sides–no tape, glue, or staples required. Bundle of 50 mailers ready to stock your warehouse.
Boxes - Mailers

3x3x2 ECT-32 White Corrugated Mailers 50-Pack

PN: M332

3 x 3 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$16.33 / BUNDLE
IN STOCK Engineered for small package fulfillment, these 3x3x1 white corrugated mailers deliver ECT-32-B crush resistance in a one-piece fold-and-tuck design. No assembly required–set up in seconds and reduce labor costs. Bundle of 50 mailers per order.
Boxes - Mailers

3x3x1 ECT-32-B White Corrugated Mailers 50/Bundle

PN: M331

3 x 3 x 1 in ECT-32-B Corrugated 50 PER BUNDLE
$16.71 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B white corrugated mailers. Engineered for one-piece assembly with no tape, glue, or staples required–crush-resistant construction protects fragile goods while reducing dimensional weight charges. Bundle of 50 ready to deploy.
Boxes - Mailers

3x2x2 ECT-32 White One-Piece Corrugated Mailers 50-Pack

PN: M322

3 x 2 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$12.91 / BUNDLE
IN STOCK Locking-tab video tape mailers eliminate tape application on your packing line, reducing labor time and adhesion failures. Pre-sized 8.5x7.625x2.0625 inches with ECT-32-B corrugated construction and built-in air-cell cushioning–no additional padding required. Sold in bundles of 20 for reliable case sealing performance.
Boxes - Mailers

8.5x7.625x2.0625 ECT-32-B White Corrugated Video Tape Mailers 20/Bundle

PN: MVM4

8 1/2 x 7.625 x 2 1/16 in ECT-32-B Corrugated 20 PER BUNDLE
$39.80 / BUNDLE
IN STOCK Seal video shipments fast with no tape required–locking tabs close securely every time. These ECT-32 corrugated mailers feature built-in air-cell cushioning to protect content without additional padding. Pack of 50 ready for your packing line.
Boxes - Mailers

8.25x4.375x1.1875 ECT-32 White Corrugated Video Tape Mailers 50/Bundle

PN: MVM1

8 1/4 x 4.375 x 1 3/16 in ECT-32-B Corrugated 50 PER BUNDLE
$34.18 / BUNDLE
IN STOCK Professional white self-seal CD mailers designed for e-commerce brands shipping audio media. These one-piece die-cut corrugated mailers (5.75
Boxes - Mailers

5.75x5.06x1.75 White Self-Seal Corrugated CD Mailers 200-Pack

PN: MM1002

5 3/4 x 5.06 x 1 3/4 in ECT-32-B Corrugated 200 PER BUNDLE
$232.05 / BUNDLE
IN STOCK Professional-grade 14.5x7.25x5 white outside tuck mailers built from ECT-32-B corrugated for maximum crush resistance. Front-lock tabs ensure secure closure without interfering with your contents. Ships flat and stores efficiently–25 mailers per bundle.
Boxes - Mailers

14.5x7.25x5 ECT-32 White Corrugated Tuck Mailers 25-Pack

PN: MEZ1475

14 1/2 x 7.25 x 5 in ECT-32-B Corrugated 25 PER BUNDLE
$56.21 / BUNDLE
IN STOCK Premium white outside tuck mailers designed for e-commerce brands shipping small goods, literature, and media. Features secure front-lock tabs and double-wall protection on 3 sides. Ships flat in convenient bundles of 25 for efficient storage.
Boxes - Mailers

11.75x7.25x4.75 ECT-32 White Corrugated Tuck Mailers 25/Bundle

PN: MEZ1174

11 3/4 x 7.25 x 4 3/4 in ECT-32-B Corrugated 25 PER BUNDLE
$48.23 / BUNDLE
IN STOCK 10 5/16x5x5 9/16 White Corrugated Outside Tuck Mailers - No Tape Needed, Bundle of 50
Boxes - Mailers

10 5/16 x 5 x 5 9/16 in White Corrugated Outside Tuck Mailers 50/Bundle

PN: MEZ1055

10 5/16 x 5 x 5 9/16 in ECT-32-B Corrugated 50 PER BUNDLE
$73.68 / BUNDLE
IN STOCK Ship with confidence using these 9.5x8x8 white outside tuck mailers. Featuring secure front lock tabs and triple-wall protection on 3 sides, they deliver professional presentation without interfering with your contents. Bundle of 25 strong ECT-32-B corrugated boxes ships and stores flat.
Boxes - Mailers

9.5x8x8 ECT-32-B White Corrugated Tuck Mailers 25/Bundle

PN: MEZ988

9 1/2 x 8 x 8 in ECT-32-B Corrugated 25 PER BUNDLE
$64.08 / BUNDLE
IN STOCK Premium white outside tuck mailers deliver professional presentation without interfering with contents. Built from strong ECT-32-B corrugated with front lock tabs ensuring secure closure and double-wall protection on 3 sides. Ships flat in bundles of 25 for convenient storage and handling.
Boxes - Mailers

7 5/8 x 5 7/16 x 3 9/16 in ECT-32-B White Outside Tuck Mailers 25-Pack

PN: MEZ753

7 5/8 x 5 7/16 x 3 9/16 in ECT-32-B Corrugated 25 PER BUNDLE
$39.50 / BUNDLE
IN STOCK Professional white corrugated outside tuck mailers designed for e-commerce brands shipping media, literature, and fragile items. Featuring secure front-lock tabs and double-wall protection on three sides, these 7 1/8x6 5/8x6 1/2 crush-resistant mailers arrive flat in bundles of 25 for efficient storage and assembly.
Boxes - Mailers

7 1/8 x 6 5/8 x 6 1/2 in ECT-32-B White Corrugated Outside Tuck Mailers 25-Pack

PN: MEZ766

7 1/8 x 6 5/8 x 6 1/2 in ECT-32-B Corrugated 25 PER BUNDLE
$43.67 / BUNDLE
IN STOCK Professional white outside tuck mailers with self-locking tabs eliminate tape waste and shipping delays. Made from durable ECT-32-B corrugated, these 5 5/8x4 3/16x5 mailers protect contents while presenting a polished brand image. Sold as bundle of 50 flat-shipped cartons.
Boxes - Mailers

5 5/8 x 4 3/16 x 5 in White Corrugated Outside Tuck Mailer 50/Bundle

PN: MEZ545

5 5/8 x 4 3/16 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$45.57 / BUNDLE
IN STOCK Ship documents and literature with confidence using these 18x12x3 kraft corrugated mailers. Manufactured from durable ECT-32B material with self-seal closure–no tape, glue, or staples required. Perfect for e-commerce brands seeking professional presentation at scale.
Boxes - Mailers

18x12x3 Kraft Self-Seal Literature Mailers 25-Pack

PN: ML18123K

18 x 12 x 3 in ECT-32-B Corrugated 25 PER BUNDLE
$63.23 / BUNDLE
IN STOCK Ship documents and marketing materials in professional style with these 17.25x11.25x4 kraft literature mailers. Made from strong ECT-32-B corrugated material and sold in bundles of 25, they assemble in seconds with no tape, glue, or staples required. Perfect for e-commerce brands seeking cost-effective, crush-resistant mailing solutions.
Boxes - Mailers

17.25x11.25x4 ECT-32 Kraft Corrugated Literature Mailers 25/Bundle

PN: ML17114K

17 1/4 x 11.25 x 4 in ECT-32-B Corrugated 25 PER BUNDLE
$61.90 / BUNDLE
IN STOCK Ship professional literature and documents with our 17x11x2.5
Boxes - Mailers

17x11x2.5 Kraft Self-Seal Corrugated Literature Mailers 25/Bundle

PN: ML17112K

17 x 11 x 2 1/2 in ECT-32-B Corrugated 25 PER BUNDLE
$50.51 / BUNDLE
IN STOCK Ship marketing materials, catalogs, and documents with professional kraft literature mailers that assemble in seconds–no tape, glue, or staples needed. These 16x16x2
Boxes - Mailers

16x16x2 Kraft Self-Seal Corrugated Literature Mailers 50/Bundle

PN: ML16162K

16 x 16 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$113.93 / BUNDLE
IN STOCK Ship documents and marketing materials with confidence using these 16x12x4 kraft corrugated mailers. ECT-32-B strength provides crush resistance while the self-seal, fold-and-tuck design assembles in seconds without tape, glue, or staples. Get 50 literature mailers per bundle at wholesale pricing.
Boxes - Mailers

16x12x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML16124K

16 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$125.33 / BUNDLE
IN STOCK Professional kraft literature mailers designed for e-commerce brands shipping documents, catalogs, and promotional materials. These 15 1/8 x 11 1/8 x 4
Boxes - Mailers

15 1/8 x 11 1/8 x 4 in Kraft Literature Mailers Crush Resistant 50/Bundle

PN: MIBMS1000K

15 1/8 x 11 1/8 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$104.82 / BUNDLE
IN STOCK Ship catalogs, brochures, and documents with professional crush-resistant protection. These 15 1/8 x 11 1/8 x 3
Boxes - Mailers

15 1/8 x 11 1/8 x 3 in Kraft Literature Mailers Self-Seal 50/Bundle

PN: M15113K

15 1/8 x 11 1/8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$99.50 / BUNDLE
IN STOCK Ship documents and marketing materials with professional presentation. These 15 1/8 x 11 1/8 x 2
Boxes - Mailers

15 1/8 x 11 1/8 x 2 in Kraft Literature Mailers 50-Pack

PN: MIBMS500K

15 1/8 x 11 1/8 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK Professional-grade kraft literature mailers featuring puncture-resistant ECT-32-B corrugated construction. Self-sealing design assembles in seconds without tape, glue, or staples–perfect for e-commerce brands shipping catalogs, brochures, and documents. Sold in bundles of 50.
Boxes - Mailers

14.25x11.25x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: M14114K

14 1/4 x 11.25 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$107.86 / BUNDLE
IN STOCK Ship documents and marketing materials with professional presentation using these 14x14x2 kraft literature mailers. Made from durable ECT-32-B corrugated material with self-sealing closure that assembles in seconds–no tape, glue, or staples required. Perfect for e-commerce brands managing shipping costs without sacrificing box quality.
Boxes - Mailers

14x14x2 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: M14142K

14 x 14 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$96.46 / BUNDLE
IN STOCK Professional kraft literature mailers sized at 14
Boxes - Mailers

14x10x2 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML14102K

14 x 10 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$91.15 / BUNDLE
IN STOCK Ship marketing materials and documents with confidence using these 13x13x3 kraft literature mailers. Built from strong ECT-32-B corrugated cardboard with self-sealing design–no tape, glue, or staples required. Perfect for e-commerce brands seeking professional presentation at scale.
Boxes - Mailers

13x13x3 Kraft Corrugated Literature Mailers 50-Pack ML13133K

PN: ML13133K

13 x 13 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$101.78 / BUNDLE
IN STOCK Ship documents and marketing materials in style with these 13
Boxes - Mailers

13x13x2 Kraft Corrugated Literature Mailers 50-Pack

PN: ML13132K

13 x 13 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$94.19 / BUNDLE
IN STOCK Ship documents professionally with zero assembly time. These 13x10x4 kraft corrugated mailers feature self-seal construction–no tape, glue, or staples required. Made from durable ECT-32-B material and sold as a convenient 50-pack bundle.
Boxes - Mailers

13x10x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: M13104K

13 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$102.54 / BUNDLE
IN STOCK Professional 13x10x2 kraft corrugated literature mailers engineered for e-commerce brands. Self-sealing design assembles in seconds without tape, glue, or staples. ECT-32B construction provides crush-resistant protection for documents, catalogs, and marketing materials.
Boxes - Mailers

13x10x2 Kraft Corrugated Literature Mailers 50-Pack

PN: M13102K

13 x 10 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$89.63 / BUNDLE
IN STOCK Ship documents and literature with professional protection using these 12 1/8x9 1/4x6 1/2
Boxes - Mailers

12 1/8 x 9 1/4 x 6 1/2 in Kraft Literature Mailers Self-Seal 50-Pack

PN: ML1296K

12 1/8 x 9 1/4 x 6 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$113.93 / BUNDLE
IN STOCK Ship documents professionally with zero assembly hassle. These ECT-32-B kraft corrugated literature mailers assemble in seconds–no tape, glue, or staples required. Sized perfectly at 12 1/8
Boxes - Mailers

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

PN: M1295K

12 1/8 x 9 1/4 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$145.07 / BUNDLE
IN STOCK Ship documents professionally with zero assembly hassle. These 12 1/8 x 9 1/4 x 4
Boxes - Mailers

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

PN: M1294K

12 1/8 x 9 1/4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$85.83 / BUNDLE
IN STOCK Ship documents and literature professionally with zero assembly hassle. These ECT-32-B kraft corrugated mailers feature self-seal closure and crush-resistant construction, perfect for e-commerce brands shipping catalogs, brochures, and flat goods. Bundle of 50–ready to pack and send.
Boxes - Mailers

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

PN: M1293K

12 1/8 x 9 1/4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK Ship catalogs, brochures, and documents with professional kraft corrugated mailers that assemble in seconds–no tape, glue, or staples required. These 12x12x6 crush-resistant one-piece folders feature sturdy ECT-32-B construction and self-seal closures for secure, damage-free delivery. Bundle of 50 delivers cost-effective protection for high-volume e-commerce shippers.
Boxes - Mailers

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

PN: ML12126K

12 x 12 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$142.04 / BUNDLE
IN STOCK Ship marketing materials, catalogs, and documents with confidence using these 12x12x4 kraft literature mailers. Built from ECT-32-B corrugated cardboard for crush resistance and durability. Self-sealing fold-and-tuck design assembles in seconds without tape, glue, or staples–50 mailers per bundle.
Boxes - Mailers

12x12x4 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML12124K

12 x 12 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$111.03 / BUNDLE
IN STOCK Ship documents and promotional materials in professional kraft corrugated mailers that require zero assembly tools. These 12x12x3 self-seal literature mailers feature ECT-32-B strength and arrive in convenient 50-pack bundles, saving you time and money versus custom cartons.
Boxes - Mailers

12x12x3 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: ML12123K

12 x 12 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$85.07 / BUNDLE
IN STOCK Professional 12
Boxes - Mailers

12x12x2 Kraft Corrugated Literature Mailers 50-Pack

PN: ML12122K

12 x 12 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$78.23 / BUNDLE
IN STOCK Ship documents and marketing materials with professional kraft corrugated mailers that need zero tape or assembly tools. This 12x11.75x3.25 one-piece design holds literature flat and resists crushing during transit. Bundle of 50 boxes gives you bulk savings without the custom carton expense.
Boxes - Mailers

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

PN: M3RBXLK

12 x 11.75 x 3 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$85.83 / BUNDLE
IN STOCK Ship documents and marketing materials in professional kraft corrugated mailers that assemble in seconds–no tape, glue, or staples needed. These 12x10x4
Boxes - Mailers

12x10x4 Kraft Self-Seal Literature Mailers 50-Pack

PN: ML12104K

12 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$94.94 / BUNDLE
IN STOCK Professional 12x9x2 kraft literature mailers designed for e-commerce brands who ship documents, catalogs, and marketing materials. Built from crush-resistant ECT-32-B corrugated, these self-sealing mailers assemble in seconds without tape, glue, or staples–saving time and reducing packaging costs. Perfect fit for standard literature at bulk pricing.
Boxes - Mailers

12x9x2 Kraft Corrugated Literature Mailers 50-Pack

PN: ML1292RK

12 x 9 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$55.45 / BUNDLE
IN STOCK Ship professional literature and documents with Packrift's 12x8x3 kraft corrugated mailers. Made from durable ECT-32B material with self-sealing design–no tape, glue, or staples required. Bundle of 50 boxes ready to assemble in seconds.
Boxes - Mailers

12x8x3 Kraft Corrugated Literature Mailers 50-Pack

PN: ML1283K

12 x 8 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$63.80 / BUNDLE
IN STOCK 11 3/4 x 10 3/4 x 2 1/4
Boxes - Mailers

11 3/4 x 10 3/4 x 2 1/4 in Kraft Literature Mailers Self-Seal 50/Bundle

PN: M3RBK

11 3/4 x 10 3/4 x 2 1/4 in ECT-32-B Corrugated 50 PER BUNDLE
$75.20 / BUNDLE
IN STOCK Ship documents and literature with professional confidence using these 11.5x11.5x3.75
Boxes - Mailers

11.5x11.5x3.75 Kraft Self-Seal Corrugated Literature Mailers 50-Pack

PN: M11113K

11 1/2 x 11 1/2 x 3 3/4 in ECT-32-B Corrugated 50 PER BUNDLE
$102.54 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 6 Kraft Literature Mailers ECT-32 Corrugated - 50/Bundle
Boxes - Mailers

11.125x8.75x6 Kraft Corrugated Literature Mailers 50-Pack

PN: M1186K

11 1/8 x 8 3/4 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$110.14 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 4
Boxes - Mailers

11 1/8 x 8 3/4 x 4 in Kraft Literature Mailers Self-Seal 50/Bundle

PN: M1184K

11 1/8 x 8 3/4 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$79.75 / BUNDLE
IN STOCK 11 1/8 x 8 3/4 x 3
Boxes - Mailers

11 1/8 x 8 3/4 x 3 in Kraft Literature Mailers Self-Seal 50/Bundle

PN: M1183K

11 1/8 x 8 3/4 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$64.56 / BUNDLE

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