Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
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Match single-, double-, or triple-wall corrugated construction to your product weight to prevent in-transit damage and minimize costly returns.
Dimensional Weight Cost Control
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Right-sized boxes cut carrier DIM weight charges, selecting the optimal LxWxH for each SKU directly lowers your per-shipment freight cost.
Mailer Box vs. RSC: Choose Correctly
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Self-locking mailer boxes suit branded DTC shipments; traditional RSC corrugated boxes are ideal for palletized B2B and high-volume fulfillment.

Need help choosing boxes?

Pick the right corrugated box without overpaying for size or strength

Use these buying guides to size your box, compare board strength, and avoid dimensional weight surcharges.

Corrugated Boxes Guide → How to choose size, strength, and wall type Box Size Calculator → Find the smallest safe box for your product 32 ECT vs 200 lb Test → Which board strength rating fits your shipment
Overview

3,094 corrugated boxes, literature mailers and mailing tubes from 2 to 36 inches, mostly ECT-32 kraft and white, sold in bundles of 10 to 50. Each listing shows inside dimensions, board grade and bundle count so you can match a carton to the part you ship. 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

IN STOCK 10x8x6 ECT-32-B White Corrugated Mailers, 50-Pack
Boxes - Mailers

10x8x6 ECT-32 White Corrugated Mailers 50-Pack

PN: M1086

10 x 8 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$101.78 / BUNDLE
IN STOCK Professional kraft corrugated literature mailers that assemble in seconds without tape, glue, or staples. Made from strong ECT-32-B material for crush-resistant protection. Perfect for e-commerce brands shipping documents, catalogs, and marketing materials with impact. 50 mailers per bundle.
Boxes - Mailers

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

PN: M1292K

12 1/8 x 9 1/4 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$53.17 / BUNDLE
IN STOCK Save 30% on storage and shipping costs with these ECT-32-B kraft corrugated mailers. The one-piece fold-and-tuck design eliminates assembly time while dual-wall construction protects fragile items. Ships flat in 50-count bundles for maximum warehouse efficiency.
Boxes - Mailers

7x5x2 ECT-32 Kraft Corrugated Mailers 50-Pack

PN: M752K

7 x 5 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$51.65 / BUNDLE
IN STOCK Ship small items with confidence using these ECT-32-B kraft corrugated mailers. One-piece fold-to-close design requires no tape, glue, or staples–assemble in seconds and cut labor costs. Double-wall construction on front and sides provides superior crush resistance while staying lightweight to reduce postage.
Boxes - Mailers

5x5x5 ECT-32-B Kraft Corrugated Mailers 50/Bundle

PN: M555K

5 x 5 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$60.00 / BUNDLE
IN STOCK Protect temperature-sensitive products with this pre-assembled 9.5x9.5x7 insulated shipping kit featuring seamless molded EPS foam and durable 200# white corrugated construction. Pre-printed with Rush, Perishable, and This Side Up handling instructions for full compliance. Lightweight and reusable–reduce packaging costs while maintaining product integrity.
Boxes - Corrugated

9.5x9.5x7 EPS Foam Insulated Shipping Kits 1/Case

PN: 214C

9 1/2 x 9 1/2 x 7 in EPS Foam/200# White Corrugated 1 PER CASE
$14.37 / EACH
IN STOCK Professional-grade 13x10x2 white corrugated literature mailers designed for e-commerce brands shipping documents, catalogs, and promotional materials. ECT-32-B crush-resistant construction with front-locking tabs and protective side flaps ensures maximum protection without tape, glue, or staples. 50-box bundle delivers cost-effective shipping solutions.
Boxes - Mailers

13x10x2 White Corrugated Literature Mailers 50/Bundle

PN: MFL13102

13 x 10 x 2 in ECT-32-B Corrugated 50 PER BUNDLE
$113.17 / BUNDLE
IN STOCK Professional 14" x 10" x 4" kraft corrugated literature mailers designed for e-commerce brands shipping documents, catalogs, and flat products. Crush-resistant ECT-32-B material with protective side flaps and front tuck closure assembles in seconds without tape, glue, or staples. Sold as bundle of 50 boxes.
Boxes - Mailers

14x10x4 Kraft Corrugated Literature Mailers 50/Bundle

PN: MFL14104K

14 x 10 x 4 in ECT-32-B Corrugated 50 PER BUNDLE
$132.92 / BUNDLE
IN STOCK Professional-grade ECT-32-B corrugated carrying cases engineered for warehouse and fulfillment operations. Pre-assembled with integrated plastic handles, these 20" x 11 3/8" x 5 1/2" crush-resistant mailers ship as a bundle of 10 to maximize your freight efficiency and reduce per-unit costs.
Boxes - Mailers

20 x 11 3/8 x 5 1/2 in White Corrugated Carrying Cases with Handles 10/Bundle

PN: MCC5

20 x 11 3/8 x 5 1/2 in ECT-32-B Corrugated 10 PER BUNDLE
$61.37 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 9x5x4" dimensions deliver proven stacking strength for mid-weight products and efficient warehouse operations. Single-wall construction reduces freight costs while maintaining structural integrity. Sold in convenient 25-box bundles.
Boxes - Corrugated

9x5x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 954

9 x 5 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$12.52 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 9x9x3 dimensions–engineered for shallow products like apparel, books, and artwork. This bundle of 25 ships flat to maximize your storage and reduce freight expenses. Single-wall construction delivers durability without excess weight.
Boxes - Corrugated

9x9x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 993

9 x 9 x 3. in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$20.63 / BUNDLE
IN STOCK Versatile 9x9x5 corrugated boxes built with ECT-32 kraft material for dependable performance in warehouse and fulfillment operations. Each 25-pack bundle delivers cost-effective shipping solutions with proven stackability and durability. Recyclable kraft construction reduces your packaging footprint while maintaining structural integrity.
Boxes - Corrugated

9x9x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 995

9 x 9 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$19.67 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 13" 11" 9" for reliable mid-weight product shipping. This 25-box bundle delivers standard industrial strength at volume pricing. Fully recyclable kraft construction reduces shipping costs per unit.
Boxes - Corrugated

13x11x9 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 13119

13 x 11 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$33.77 / BUNDLE
IN STOCK Eliminate carton sizer equipment and inventory bloat with these pre-scored, adjustable-height corrugated boxes. Fold to 6", 9", or 12" heights using the same ECT-32 kraft carton–cut packaging SKUs and parcel service fees instantly. Sold in bundles of 25.
Boxes - Corrugated

12.5x12.5x12 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD121212R

12 1/2 x 12 1/2 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$50.65 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes measuring 16" × 10" × 16" deliver reliable protection for mid-sized shipments and storage. This 25-pack bundle of corrugated cartons offers excellent stacking performance and freight efficiency for warehouse operations. Built for industrial durability at economy pricing.
Boxes - Corrugated

16x10x16 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 161016

16 x 10 x 16 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$47.06 / BUNDLE
IN STOCK Ship elongated products efficiently with these 17x10x10 corrugated boxes featuring long-side openings for fast, error-free packing. ECT-32 kraft construction delivers reliable protection while reducing wasted space in your warehouse. Bundle of 25 ships flat to maximize your storage and freight efficiency.
Boxes - Corrugated

17x10x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 171010

17 x 10 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$37.81 / BUNDLE
IN STOCK Eliminate carton sizer needs with these pre-scored multi-depth corrugated boxes in 17.25x11.5x11 dimensions. One box folds to multiple heights–cut inventory SKUs and parcel shipping costs simultaneously. ECT-32 kraft construction rated for reliable stacking performance.
Boxes - Corrugated

17.25x11.5x11 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD171111

17 1/4 x 11.5 x 11 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$43.94 / BUNDLE

Product Help Request

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Buying path

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Larger orders

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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 finder -> Get a delivered quote for larger orders -> Compare corrugated box types -> View products below ->