Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
MORE INFO
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
MORE INFO
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
MORE INFO
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 Heavy-duty ECT-48 double wall corrugated construction delivers superior stacking strength and crush resistance for demanding warehouse and fulfillment operations. These kraft 12x12x12 shipping cartons are manufactured to handle high-volume distribution while protecting contents. Bundle of 15 boxes ships flat to maximize storage efficiency and reduce freight costs.
Boxes - Corrugated

12x12x12 ECT-48 Heavy Duty Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD1212DW

12 x 12 x 12 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$35.77 / BUNDLE
IN STOCK Ship hazardous liquids with confidence using these ECT-51 double wall corrugated hazmat boxes designed for 2 - 1 gallon F-style containers. Kraft construction with printed UN certification, warning labels, and directional arrows meets CFR 49 178.601B requirements. Flat-store design maximizes warehouse efficiency while minimizing freight costs–20 cartons per bundle.
Boxes - Corrugated

9x6 11/16x10 1/4 ECT-51 Double Wall Hazmat Boxes 20-Pack

PN: HAZ1022

9 x 6 11/16 x 10 1/4 in ECT-51 Double Wall Corrugated 20 PER BUNDLE
$224.22 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes in 19x6x4 dimensions with wide long-side opening for fast, efficient packing. Ideal for narrow, elongated products like wine bottles, umbrellas, and carpet rolls. Sold as bundle of 25 flat cartons–maximize your storage and reduce per-unit freight costs.
Boxes - Corrugated

19x6x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1964

19 x 6 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$31.57 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 17" 8" 8" with convenient long-side opening for efficient packing of wine bottles, umbrellas, carpet rolls, and similar narrow products. Sold as a bundle of 25 boxes, shipped flat to maximize freight efficiency and reduce storage footprint.
Boxes - Corrugated

17x8x8 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 1788

17 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$28.58 / BUNDLE
IN STOCK 16x9x9 Kraft Corrugated Shipping Boxes, 550 Pack Pallet, 32 ECT
Boxes - Corrugated

16x9x9 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1699

16 x 9 x 9 in ECT-32 Corrugated 25 PER BUNDLE
$51.26 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 16x9x3" ECT-32 kraft corrugated boxes. Wide lengthwise openings simplify packing of wine bottles, umbrellas, carpet rolls, and similar products. Sold flat in bundles of 25–minimize storage footprint while maximizing freight efficiency.
Boxes - Corrugated

16x9x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 1693

16 x 9 x 3 in ECT-32 Corrugated 25 PER BUNDLE
$24.95 / BUNDLE
IN STOCK Dependable 15x10x14" ECT-32 kraft corrugated boxes designed for standard-weight industrial shipments. Each bundle includes 25 boxes with proven stacking strength and reliable crush resistance. Recyclable material reduces your carbon footprint while maximizing freight efficiency.
Boxes - Corrugated

15x10x14 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 151014

15 x 10 x 14 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$45.36 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 15"10"12" deliver dependable strength for mid-weight product shipments and warehouse storage. Sold as a bundle of 25 cartons, these single-wall corrugated boxes stack efficiently and reduce per-unit costs. Recyclable kraft material meets sustainability goals without compromising performance.
Boxes - Corrugated

15x10x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 151012

15 x 10 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$39.72 / BUNDLE
IN STOCK ECT-32 single-wall corrugated boxes designed for reliable, cost-effective shipping and storage. These 15" 10" 10" kraft cartons deliver standard strength performance in a 25-pack bundle, ideal for high-volume warehouse operations and fulfillment centers seeking quality at scale.
Boxes - Corrugated

15x10x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 151010

15 x 10 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$35.97 / BUNDLE
IN STOCK Professional-grade 15x10x8" corrugated shipping boxes with ECT-32 single-wall kraft construction. Sold as a bundle of 25, these cardboard cartons deliver reliable stacking strength and cost-effective volume packaging for mid-weight products. Recyclable kraft material supports sustainable fulfillment operations.
Boxes - Corrugated

15x10x8 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 15108

15 x 10 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$32.87 / BUNDLE
IN STOCK 15x10x4 Kraft Corrugated Shipping Boxes, 1,075 Pack Pallet, 32 ECT
Boxes - Corrugated

15x10x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 15104

15 x 10 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.05 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 14x11x8 inches–engineered for reliable mid-weight product shipping and storage. Sold as a 25-pack bundle to maximize volume efficiency and reduce per-box cost. Fully recyclable and built for warehouse performance.
Boxes - Corrugated

14x11x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 14118

14 x 11 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$35.73 / BUNDLE
IN STOCK Optimize shallow product shipments with our 14x11x3 ECT-32 kraft corrugated boxes. Each bundle of 25 arrives flat, maximizing storage efficiency and reducing freight weight. Perfect for apparel, books, artwork, and picture frames–engineered for reliable protection at lower stacking costs.
Boxes - Corrugated

14x11x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 14113

14 x 11 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$26.87 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes deliver dependable stacking strength for mid-weight products. Each 12.5" x 12.5" x 6" box is sold as a bundle of 25, offering volume efficiency for warehouse and fulfillment operations. Recyclable kraft construction reduces environmental impact while meeting standard shipping demands.
Boxes - Corrugated

12.5x12.5x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 12126R

12 1/2 x 12 1/2 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$32.56 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 20x5x5 ECT-32 kraft corrugated boxes. The long-side opening design eliminates packing friction and speeds fulfillment for wine bottles, umbrellas, carpet rolls, and similar products. Sold as a bundle of 25 boxes flat for maximum warehouse space efficiency.
Boxes - Corrugated

20x5x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 2055

20 x 5 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$24.47 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons sized 15" x 10" x 6" for mid-weight products and e-commerce fulfillment. Sold as a convenient 25-box bundle. Recyclable, cost-effective boxes built to stack and perform in warehouse operations.
Boxes - Corrugated

15x10x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 15106

15 x 10 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$28.59 / 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 ->