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 9x9x10 Kraft Corrugated Shipping Boxes, 1,050 Pack Pallet, 32 ECT
Boxes - Corrugated

9x9x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 9910

9 x 9 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.42 / BUNDLE
IN STOCK 7x7x12 Kraft Corrugated Shipping Boxes, 1,275 Pack Pallet, 32 ECT
Boxes - Corrugated

7x7x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 7712

7 x 7 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$22.03 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for long, narrow products like wine bottles, umbrellas, and carpet rolls. 16" x 4" x 4" dimensions with convenient long-side openings for fast, efficient packing. Sold in bundles of 25, flat-packed to maximize freight efficiency and reduce storage footprint.
Boxes - Corrugated

16x4x4 ECT-32 Kraft Corrugated Shipping Boxes

PN: 1644

16 x 4 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$29.52 / BUNDLE
IN STOCK 14x6x4 Kraft Corrugated Shipping Boxes, 1,550 Pack Pallet, 32 ECT
Boxes - Corrugated

14x6x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1464

14 x 6 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$17.90 / BUNDLE
IN STOCK 13x7x7 Kraft Corrugated Shipping Boxes, 1,175 Pack Pallet, 32 ECT
Boxes - Corrugated

13x7x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1377

13 x 7 x 7 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$23.54 / BUNDLE
IN STOCK Reliable ECT-32 kraft corrugated boxes sized 12" x 8" x 8" for mid-weight product shipping and warehouse storage. Sold in bundles of 25 cartons. Stackable design maximizes pallet density and reduces freight costs per unit.
Boxes - Corrugated

12x8x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1288

12 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$21.74 / BUNDLE
IN STOCK Economical ECT-32 single wall kraft corrugated boxes sized 12" 8" 7" for efficient packing and shipping. Sold in convenient bundles of 25 cartons. Ideal for warehouse operations requiring dependable, recyclable cardboard shipping containers at standard strength.
Boxes - Corrugated

12x8x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1287

12 x 8 x 7 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$22.31 / BUNDLE
IN STOCK 12x8x6 Kraft Corrugated Shipping Boxes, 1,350 Pack Pallet, 32 ECT
Boxes - Corrugated

12x8x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1286

12 x 8 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$20.58 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes designed for reliable mid-weight shipping and storage. 12" 8" 5" dimensions maximize pallet density while maintaining structural integrity. Bundle of 25 recyclable cardboard boxes ready to ship.
Boxes - Corrugated

12x8x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1285

12 x 8 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$22.95 / BUNDLE
IN STOCK 11.25x8.75x10 ECT-32 Kraft Corrugated Boxes - 5 Ream Shipper, 25-Pack
Boxes - Corrugated

11.25x8.75x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11810R

11 1/4 x 8.75 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$30.89 / BUNDLE
IN STOCK 11.25x8.75x9.5" ECT-32 Kraft Corrugated Boxes - Printer Perfect, 25-Pack
Boxes - Corrugated

11.25x8.75x9.5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1189

11 1/4 x 8.75 x 9 1/2 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.53 / BUNDLE
IN STOCK 11.25 x 8.75 x 8" ECT-32 White Corrugated Boxes - 25 Bundle
Boxes - Corrugated

11.25x8.75x8 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 1188SCW

11 1/4 x 8.75 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$46.71 / BUNDLE
IN STOCK 11.25x8.75x8 Kraft Corrugated Boxes ECT-32 - Bundle of 25
Boxes - Corrugated

11.25x8.75x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1188SC

11 1/4 x 8.75 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.60 / BUNDLE
IN STOCK 11.25x8.75x6 ECT-32 White Corrugated Shipping Boxes - 25 Pack
Boxes - Corrugated

11.25x8.75x6 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 1186RW

11 1/4 x 8.75 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$27.62 / BUNDLE
IN STOCK Eliminate carton sizers and slash inventory SKUs with these pre-scored multi-depth kraft corrugated boxes (11.25" x 8.75" x 6"). ECT-32 rated for reliable stacking and freight performance. Sold as a bundle of 25–right-size every shipment to cut parcel costs.
Boxes - Corrugated

11.25x8.75x6 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD1186

11 1/4 x 8.75 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$24.71 / BUNDLE
IN STOCK 11.25x8.75x5 ECT-32 Kraft Corrugated Boxes - Printer Perfect, 25-Pack
Boxes - Corrugated

11.25x8.75x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1185R

11 1/4 x 8.75 x 5 in ECT-32 Corrugated 25 PER BUNDLE
$31.04 / BUNDLE

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

Buying path

Buy Boxes & Mailers 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 orders, send your list and ZIP and get a delivered price by email.

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 ->