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 Ship long, narrow items efficiently with these 32x6x6 ECT-32 kraft corrugated boxes. Wide length openings reduce packing time and damage risk. Sold as a bundle of 25 boxes–maximize your freight efficiency without over-packaging.
Boxes - Corrugated

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

PN: 3266

32 x 6 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$39.58 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 30x8x8 corrugated boxes made from ECT-32 kraft material. Wide opening along the length reduces packing time and labor costs. Sold as bundles of 25 and shipped flat to maximize freight efficiency.
Boxes - Corrugated

30x8x8 ECT-32 Kraft Corrugated Boxes

PN: 3088

30 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$45.39 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes sized 24" × 14" × 14" deliver standard strength performance for mid-weight product shipping and warehouse storage. This 15-box bundle maximizes freight efficiency while maintaining superior stacking capacity. Kraft construction ensures recyclability and cost-effective bulk packaging solutions.
Boxes - Corrugated

24x14x14 ECT-32 Kraft Corrugated Boxes 15-Pack

PN: 241414

24 x 14 x 14 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$42.36 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 24" × 14" × 10" for reliable mid-weight product protection. Bundle of 20 boxes delivers cost-effective storage and fulfillment solutions with proven stacking performance. Recyclable kraft material reduces waste while maintaining structural integrity.
Boxes - Corrugated

24x14x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241410

24 x 14 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$51.15 / BUNDLE
IN STOCK Ship shallow products efficiently with 24x14x8 ECT-32 kraft corrugated boxes–the go-to choice for apparel, books, artwork, and lightweight items. Bundle of 20 ships flat to maximize warehouse space and cut freight costs. Reliable single-wall construction rated for consistent stacking performance.
Boxes - Corrugated

24x14x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 24148

24 x 14 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$46.70 / BUNDLE
IN STOCK Shallow-depth 24x14x6" corrugated boxes manufactured from durable ECT-32 kraft material. Ships flat to maximize storage efficiency and reduce freight weight. Sold in bundles of 25–ideal for e-commerce, retail fulfillment, and supply chain operations.
Boxes - Corrugated

24x14x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 24146

24 x 14 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.65 / BUNDLE
IN STOCK Ship shallow products efficiently with our 24x14x4" ECT-32 kraft corrugated boxes. The 4" depth eliminates excess void space for apparel, books, picture frames, and artwork. Bundle of 25 ships flat to maximize your storage and reduce freight spend.
Boxes - Corrugated

24x14x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 24144

24 x 14 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$48.05 / BUNDLE
IN STOCK Sturdy ECT-32 kraft corrugated boxes sized 22" × 16" × 16" for reliable mid-range shipping and storage. Sold as a bundle of 15 boxes, these single-wall cartons deliver solid stacking performance and cost-effective volume handling. Recyclable kraft material supports your sustainable packaging goals.
Boxes - Corrugated

22x16x16 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 221616

22 x 16 x 16 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$50.29 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 22" x 16" x 12"–the industry standard for mid-range shipping and storage. Ships flat to maximize warehouse space and reduce freight costs. Bundle of 20 boxes per order.
Boxes - Corrugated

22x16x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 221612

22 x 16 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$78.48 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 22" × 16" × 10" for reliable mid-sized shipments and storage. These single-wall corrugated cartons deliver proven stacking strength and cost efficiency in bundles of 20. Ideal for warehouse operations requiring durable, recyclable packaging.
Boxes - Corrugated

22x16x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 221610

22 x 16 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.72 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 22" x 16" x 8" – the industry standard for mid-size shipments. Ship flat to maximize freight efficiency and warehouse storage. Bundle of 20 boxes delivers volume savings without compromising stacking strength.
Boxes - Corrugated

22x16x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 22168

22 x 16 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$67.27 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated cartons with a 6" shallow depth–engineered for flat products like apparel, books, and artwork. Each bundle of 25 ships flat to maximize storage efficiency and reduce freight costs. Reliable strength-to-weight ratio for cost-effective shipping.
Boxes - Corrugated

22x16x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 22166

22 x 16 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$97.45 / BUNDLE
IN STOCK 22x16x4 Kraft Corrugated Shipping Boxes Single Wall, 325 Pack Pallet, 32 ECT
Boxes - Corrugated

22x16x4 ECT-32 Kraft Corrugated Shipping Boxes Single Wall 25-Pack

PN: 22164

22 x 16 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$85.59 / BUNDLE
IN STOCK Industrial-grade 20x18x18" corrugated shipping cartons manufactured from ECT-32 kraft material. Sold as a convenient bundle of 15 boxes. Engineered for reliable stacking performance, secure freight transport, and maximum warehouse efficiency with proven recyclable construction.
Boxes - Corrugated

20x18x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 201818

20 x 18 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$56.06 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20" × 18" × 16" deliver proven stacking strength and cost efficiency for mid-volume fulfillment operations. Sold as a bundle of 10, these single-wall cartons maximize freight efficiency while maintaining structural integrity through the supply chain. Recyclable kraft material supports sustainable packaging goals.
Boxes - Corrugated

20x18x16 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201816

20 x 18 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$35.73 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20" × 18" × 14" deliver reliable strength for mid-range shipments and storage applications. Sold in bundles of 10, these single-wall cardboard shipping boxes are engineered for stackability and cost efficiency. Fully recyclable kraft construction meets sustainability requirements while maximizing warehouse productivity.
Boxes - Corrugated

20x18x14 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201814

20 x 18 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$34.26 / 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 ->