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 ECT-32 kraft corrugated shipping boxes in compact 12x10x2" dimensions–engineered for shallow product categories like apparel, books, frames, and artwork. Ships flat in bundles of 25 to maximize warehouse storage efficiency and minimize inbound freight spend.
Boxes - Corrugated

12x10x2 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 12102

12 x 10 x 2 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$39.63 / BUNDLE
IN STOCK ECT-32 kraft corrugated cube boxes in the popular 11x11x11 size–designed for shipping round, cylindrical, and odd-shaped products with reliable protection. Sold flat and bundled in quantities of 25 for maximum freight efficiency and volume savings for your warehouse operation.
Boxes - Corrugated

11x11x11 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 111111

11 x 11 x 11 in ECT-32 Corrugated 25 PER BUNDLE
$34.36 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes in 11" x 11" x 10" dimensions ship flat and stack securely–ideal for warehouse efficiency and cost control. This 25-box bundle reduces storage footprint while maintaining industry-standard durability for reliable product protection. Perfect for fulfillment centers managing high-volume operations.
Boxes - Corrugated

11x11x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 111110

11 x 11 x 10 in ECT-32 Corrugated 25 PER BUNDLE
$45.06 / BUNDLE
IN STOCK Reliable ECT-32 corrugated boxes in 11x11x8" dimensions, sold as a bundle of 25 units. Built for medium-weight shipments with proven stacking strength and flat-shipping efficiency. Reduce warehouse footprint and freight costs while maintaining structural integrity.
Boxes - Corrugated

11x11x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11118

11 x 11 x 8 in ECT-32 Corrugated 25 PER BUNDLE
$39.97 / BUNDLE
IN STOCK Stock industrial-strength 11x11x6 corrugated boxes that deliver proven stacking performance and freight efficiency. ECT-32 kraft material provides reliable protection for mid-weight shipments, and our 25-pack bundle maximizes your volume savings. Recyclable packaging built for warehouse operations.
Boxes - Corrugated

11x11x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11116

11 x 11 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$27.56 / BUNDLE
IN STOCK 11x11x5 Kraft Corrugated Shipping Boxes, 1,075 Pack Pallet, 32 ECT
Boxes - Corrugated

11x11x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11115

11 x 11 x 5 in ECT-32 Corrugated 25 PER BUNDLE
$25.72 / BUNDLE
IN STOCK 11x11x3 Kraft Corrugated Shipping Boxes, 825 Pack Pallet, 32 ECT
Boxes - Corrugated

11x11x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11113

11 x 11 x 3 in ECT-32 Corrugated 25 PER BUNDLE
$34.13 / BUNDLE
IN STOCK Pre-scored multi-depth corrugated boxes that fold to 6 different heights–eliminate carton sizers and cut your shipping costs. ECT-32 kraft construction delivers reliable stacking performance. Reduce inventory complexity with one SKU that handles multiple product sizes.
Boxes - Corrugated

10x10x12 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD101012

10 x 10 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$37.34 / BUNDLE
IN STOCK 10x10x12 ECT-32 Kraft Corrugated Boxes - 25 Pack Bundle
Boxes - Corrugated

10x10x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 101012

10 x 10 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$31.43 / BUNDLE
IN STOCK Ship tall items efficiently with our 8x8x14 corrugated boxes made from durable ECT-32 kraft material. End-loading design enables fast packing and sealing. Sold in bundles of 25 and shipped flat to maximize freight efficiency and reduce storage footprint.
Boxes - Corrugated

8x8x14 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 8814

8 x 8 x 14 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.16 / BUNDLE
IN STOCK Industrial-grade 9x9x13 double wall corrugated boxes engineered for maximum protection and stacking performance. ECT-48 kraft construction delivers heavy-duty durability for demanding fulfillment operations. Sold in bundles of 25 and ship flat to optimize warehouse storage and freight efficiency.
Boxes - Corrugated

9x9x13 ECT-48 Kraft Double Wall Corrugated Boxes 25-Pack

PN: KEG12

9 x 9 x 13 in ECT-48 Double Wall Corrugated 25 PER BUNDLE
$49.53 / BUNDLE
IN STOCK End-loading 4x4x18 tall corrugated boxes made from ECT-32 kraft single-wall material–strong enough for stacking and designed for vertical items. Ships flat in bundles of 25 for maximum freight efficiency. Perfect replacement for mailing tubes and ideal for trophies, fishing rods, and shelving.
Boxes - Corrugated

4x4x18 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 4418

4 x 4 x 18 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.62 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 17x6x6 ECT-32 kraft corrugated boxes featuring a convenient long-side opening for faster packing. Sold in bundles of 25 flat for compact storage and cost-effective freight. Ideal for wine bottles, umbrellas, carpet rolls, and similar products.
Boxes - Corrugated

17x6x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1766

17 x 6 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$23.06 / BUNDLE
IN STOCK Durable 14x9x9" corrugated shipping boxes built from ECT-32 kraft material for reliable performance in demanding warehouse environments. This 25-pack bundle delivers the strength and crush resistance you need at volume pricing. Perfect for fulfillment centers, e-commerce operations, and industrial storage applications.
Boxes - Corrugated

14x9x9 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 25-Pack

PN: 1499

14 x 9 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$29.27 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes sized 14" x 9" x 8"–the proven standard for mid-weight product shipments. This bundle of 25 boxes delivers consistent stacking strength and freight efficiency without premium pricing. Built for warehouse performance and recyclable.
Boxes - Corrugated

14x9x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1498

14 x 9 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$27.86 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for mid-weight shipping and storage. 14" 9" 6" dimensions maximize pallet efficiency and reduce freight costs. Sold in bundles of 25–ideal for warehouses and fulfillment operations managing high-volume orders.
Boxes - Corrugated

14x9x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1496

14 x 9 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$25.64 / BUNDLE

Product Help Request

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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

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Confirm

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Reorder

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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 ->