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 boxes sized 22" × 22" × 18" deliver standard-strength protection for mid-weight products, shipping, and warehouse storage. Sold in bundles of 10 for volume efficiency. Fully recyclable cardboard construction reduces environmental impact while maintaining cost-effective logistics.
Boxes - Corrugated

22x22x18 ECT-32 Kraft Corrugated Boxes 10-Pack

PN: 222218

22 x 22 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$46.32 / BUNDLE
IN STOCK Professional-grade ECT-32 kraft corrugated shipping boxes sized 22" x 22" x 16" for mid-weight products and standard fulfillment operations. Bundle of 10 boxes delivers reliable stacking performance and freight efficiency. Recyclable kraft material reduces environmental impact while maintaining structural integrity.
Boxes - Corrugated

22x22x16 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 222216

22 x 22 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$45.50 / BUNDLE
IN STOCK Professional-grade 22x22x14" corrugated shipping boxes with ECT-32 single-wall kraft construction for medium-duty warehousing and fulfillment operations. Ten-box bundle delivers cost-efficient packaging for repeated orders. Fully recyclable and built for reliable stacking performance.
Boxes - Corrugated

22x22x14 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 222214

22 x 22 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$42.91 / BUNDLE
IN STOCK Heavy-duty 22x22x12 corrugated shipping boxes built from ECT-32 kraft material for reliable stacking and freight efficiency. Sold as a bundle of 10 units. Fully recyclable and ideal for warehouse managers handling medium-weight products with superior crush resistance.
Boxes - Corrugated

22x22x12 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 222212

22 x 22 x 12 in ECT-32 Corrugated 10 PER BUNDLE
$41.80 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 22"×22"×10" deliver reliable strength for mid-weight industrial shipping and storage applications. This bundle of 15 corrugated cartons offers proven stacking durability and freight efficiency for warehouse and fulfillment operations. 100% recyclable cardboard construction reduces waste while protecting your goods.
Boxes - Corrugated

22x22x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 222210

22 x 22 x 10 in ECT-32 Corrugated 15 PER BUNDLE
$57.67 / BUNDLE
IN STOCK Ship smarter with 22x22x6 ECT-32 kraft corrugated boxes–engineered for shallow products like apparel, books, and artwork. Each bundle of 15 ships flat, maximizing your warehouse storage and cutting freight costs. Reliable ECT-32 strength meets real-world fulfillment demands.
Boxes - Corrugated

22x22x6 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 22226

22 x 22 x 6 in ECT-32 Corrugated 15 PER BUNDLE
$52.52 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons sized 22" × 22" × 4" for shallow product shipping. Optimized depth reduces wasted space and cuts freight costs on apparel, books, frames, and artwork. Sold flat in bundles of 10–maximum storage efficiency, ready to assemble.
Boxes - Corrugated

22x22x4 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 22224

22 x 22 x 4 in ECT-32 Corrugated 10 PER BUNDLE
$31.52 / BUNDLE
IN STOCK Industrial-grade 36x8x8 heavy duty double wall corrugated boxes engineered for demanding warehouse environments. ECT-48 rated construction delivers superior stacking strength and crush resistance. Ships flat in bundles of 15 to optimize freight costs and storage footprint.
Boxes - Corrugated

36x8x8 ECT-48 Heavy Duty Double Wall Corrugated Shipping Box 15-Pack

PN: HD3688DW

36 x 8 x 8 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$76.11 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 28x16x5 dimensions–engineered for shallow products like apparel, books, and artwork. Ships flat in bundles of 25 to maximize your warehouse storage and reduce freight expenses. Reliable single-wall construction meets shipping demands without excess material cost.
Boxes - Corrugated

28x16x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 28165

28 x 16 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$109.00 / BUNDLE
IN STOCK 26x18x18 Kraft Corrugated Shipping Boxes, 180 Pack Pallet, 32 ECT
Boxes - Corrugated

26x18x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 261818

26 x 18 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$98.86 / BUNDLE
IN STOCK Industry-standard 24x20x24" corrugated boxes with ECT-32 single wall construction deliver reliable stacking performance and freight efficiency. This 10-box bundle ships flat to maximize your storage space while maintaining structural integrity for demanding warehouse operations. Ideal for high-volume fulfillment centers requiring durable, cost-effective kraft cartons.
Boxes - Corrugated

24x20x24 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 242024

24 x 20 x 24 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$81.41 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes engineered for warehouse and fulfillment operations. 24x20x12 kraft cartons with integrated hand holes ship flat to maximize freight efficiency and reduce storage footprint. Bundle of 10 boxes.
Boxes - Corrugated

24x20x12 ECT-48 Double Wall Corrugated Shipping Boxes with Hand Holes 10-Pack

PN: HD242012DWHH

24 x 20 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$81.73 / BUNDLE
IN STOCK Protect high-value shipments with these ECT-48 heavy-duty double wall corrugated boxes (24x20x12). Superior stacking performance and burst strength for demanding warehouse operations. Ships flat in bundles of 10–maximize storage efficiency and reduce freight costs.
Boxes - Corrugated

24x20x12 ECT-48 Double Wall Corrugated Boxes 10-Pack

PN: HD242012DW

24 x 20 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$61.67 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes with shallow 4" depth–engineered for compact products like apparel, books, and framed items. Ships flat in bundles of 20 to maximize warehouse space and reduce freight costs. Reliable single-wall construction for cost-effective protection.
Boxes - Corrugated

24x20x4 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 24204

24 x 20 x 4 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$84.26 / BUNDLE
IN STOCK Heavy-duty ECT-44 single wall kraft corrugated boxes designed for maximum stacking strength and protection. At 22x22x22 inches, these 40% stronger cartons optimize freight efficiency while reducing damage claims. Sold flat in convenient bundles of 10.
Boxes - Corrugated

22x22x22 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 10-Pack

PN: HD222222

22 x 22 x 22 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$69.09 / BUNDLE
IN STOCK Eliminate carton sizer complexity with pre-scored multi-depth corrugated boxes that fold to five different heights–perfect fit every time. ECT-32 kraft construction delivers durability while reducing your carton inventory and per-unit shipping costs. Sold as a bundle of 10.
Boxes - Corrugated

22x22x22 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 10-Pack

PN: MD222222

22 x 22 x 22 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$52.04 / 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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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 ->