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 Professional white corrugated shipping boxes sized 12" x 10" x 6" with ECT-32 single-wall durability. Each bundle contains 25 boxes–the same robust construction as kraft cartons but with a clean white finish that makes labels and shipping instructions stand out. Perfect for e-commerce fulfillment, retail packaging, and high-visibility shipments.
Boxes - Corrugated

12x10x6 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 12106W

12 x 10 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$30.45 / BUNDLE
IN STOCK 12x10x6 Kraft Multi-Depth Corrugated Shipping Boxes, 850 Pack Pallet, 32 ECT
Boxes - Corrugated

12x10x6 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD12106

12 x 10 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$33.16 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 12" 10" 6" dimensions deliver reliable standard strength for mid-size shipments and storage. Each bundle includes 25 boxes, reducing per-unit costs while maintaining consistent stacking performance. Recyclable kraft construction ideal for sustainable fulfillment operations.
Boxes - Corrugated

12x10x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 12106

12 x 10 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$24.95 / BUNDLE
IN STOCK 12x10x5 Kraft Corrugated Shipping Boxes, 1,125 Pack Pallet, 32 ECT
Boxes - Corrugated

12x10x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 12105

12 x 10 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$24.68 / BUNDLE
IN STOCK Industrial-grade 11x11x9 corrugated boxes with ECT-32 kraft construction deliver reliable stacking strength for warehouses and fulfillment centers. This 25-box bundle maximizes storage efficiency while keeping freight costs low. Recyclable kraft material meets sustainability demands without sacrificing performance.
Boxes - Corrugated

11x11x9 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11119

11 x 11 x 9 in ECT-32 Corrugated 25 PER BUNDLE
$31.38 / BUNDLE
IN STOCK Dependable 11x11x7 corrugated shipping boxes built from ECT-32 kraft material for reliable mid-size product protection. Each bundle includes 25 cartons ready to maximize your fulfillment workflow. Stackable, cost-effective, and fully recyclable for sustainable operations.
Boxes - Corrugated

11x11x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11117

11 x 11 x 7 in ECT-32 Corrugated 25 PER BUNDLE
$29.12 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 11" x 11" x 4" for shallow products. Sold in bundles of 25 and ship flat to maximize storage and freight efficiency. Ideal for apparel, books, picture frames, artwork, and clothing.
Boxes - Corrugated

11x11x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 11114

11 x 11 x 4 in ECT-32 Corrugated 25 PER BUNDLE
$37.73 / BUNDLE
IN STOCK 18x4x4 Kraft Corrugated Shipping Boxes, 1,275 Pack Pallet, 32 ECT
Boxes - Corrugated

18x4x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1844

18 x 4 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$21.92 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes in 14" 8" 5" dimensions ship and store completely flat, maximizing warehouse efficiency. Bundle of 25 boxes reduces per-unit cost while delivering proven stacking strength. Perfect for mid-size shipments requiring reliable protection without excess weight.
Boxes - Corrugated

14x8x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1485

14 x 8 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$34.26 / BUNDLE
IN STOCK 13x9x6 Kraft Corrugated Shipping Boxes, 1,125 Pack Pallet, 32 ECT
Boxes - Corrugated

13x9x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1396

13 x 9 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$25.10 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 12" x 10" x 12" for mid-weight product protection and efficient warehouse operations. Sold as a 25-box bundle to maximize your packaging inventory and reduce per-unit costs. Made from recyclable kraft corrugated material for sustainable fulfillment.
Boxes - Corrugated

12x10x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 121012

12 x 10 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$37.82 / BUNDLE
IN STOCK ECT-48 double wall corrugated boxes deliver heavy-duty protection for demanding shipments. These 12" x 10" x 10" kraft cartons offer superior stacking performance and are sold in convenient bundles of 15 that ship flat to maximize storage efficiency and reduce freight costs.
Boxes - Corrugated

12x10x10 ECT-48 Double Wall Corrugated Boxes 15-Pack

PN: HD121010DW

12 x 10 x 10 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$52.30 / BUNDLE
IN STOCK Reliable ECT-32 single-wall corrugated boxes in 12" 10" 9" dimensions, sold as a bundle of 25 units. Ideal for mid-weight product shipping, these kraft cartons deliver proven stacking strength and freight efficiency for warehouse operations. Fully recyclable and cost-effective for high-volume fulfillment centers.
Boxes - Corrugated

12x10x9 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 12109

12 x 10 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$29.87 / BUNDLE
IN STOCK Cost-effective 12x10x8" white corrugated shipping boxes built with ECT-32 single-wall construction for dependable stacking and freight efficiency. The crisp white exterior provides a professional canvas for applied labels and special shipping instructions. Sold as a convenient 25-box bundle.
Boxes - Corrugated

12x10x8 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 12108W

12 x 10 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$35.06 / BUNDLE
IN STOCK ECT-44 single-wall kraft corrugated boxes deliver 40% greater stacking strength than standard shipping containers. These 12x10x6 heavy-duty cartons handle high-volume fulfillment with superior burst resistance and crush protection. Sold flat in bundles of 25 for maximum freight efficiency and warehouse density.
Boxes - Corrugated

12x10x6 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD12106

12 x 10 x 6 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$35.84 / BUNDLE
IN STOCK Heavy-duty ECT-44 single wall kraft corrugated boxes sized 12" x 10" x 4" deliver 40% greater stacking strength than standard shipping containers. Ideal for mid-weight products, these kraft cartons ship flat and are sold in convenient bundles of 25. Perfect for warehouse managers seeking reliable, cost-effective shipping solutions with superior protection.
Boxes - Corrugated

12x10x4 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack

PN: HD12104

12 x 10 x 4 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$51.29 / 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

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Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

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 ->