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 in 8x8x20 dimensions–built for tall items like fishing rods, trophies, and shelving. End-loading design speeds packing and sealing. Sold in bundles of 25, shipped flat to maximize warehouse efficiency.
Boxes - Corrugated

8x8x20 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 8820

8 x 8 x 20 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$33.76 / BUNDLE
IN STOCK Ship forms, catalogs, and letterhead safely in these 17.25" x 11.5" x 6" ECT-32 kraft corrugated boxes. Single-wall construction rated for reliable stacking and freight efficiency. Sold in bundles of 25–reduce per-unit costs on high-volume orders.
Boxes - Corrugated

17.25x11.5x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 17116R

17 1/4 x 11.5 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$41.60 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons sized for standard paper formats–protect forms, catalogs, letterhead, and printed materials from damage during transit. This 25-box bundle delivers reliable single-wall construction with proven stacking strength for warehouse and fulfillment operations.
Boxes - Corrugated

17.25x11.25x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 17118

17 1/4 x 11.25 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$36.12 / BUNDLE
IN STOCK Protect high-value documents and printed materials with these ECT-32 kraft corrugated cartons in bulk. Sized perfectly for standard paper formats at 17.25" × 11.25" × 7". Bundle of 25 shipping boxes designed for warehouse efficiency and damage prevention.
Boxes - Corrugated

17.25x11.25x7 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 17117

17 1/4 x 11.25 x 7 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$36.05 / BUNDLE
IN STOCK Premium white corrugated shipping boxes in 17.25" x 11.25" x 6" dimensions with ECT-32 single-wall construction. Sold in convenient 25-box bundles. Superior label adhesion and professional presentation for branded fulfillment operations.
Boxes - Corrugated

17.25x11.25x6 ECT-32 White Corrugated Shipping Boxes 25-Pack

PN: 17116W

17 1/4 x 11.25 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$37.94 / BUNDLE
IN STOCK These 17.25x11.25x5 ECT-32 kraft corrugated boxes deliver the shallow depth warehouses need for apparel, books, artwork, and picture frames without excess void fill. Manufactured from durable single-wall corrugated material and shipped flat to maximize storage efficiency. Bundle of 25 cartons per order.
Boxes - Corrugated

17.25x11.25x5 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 17115

17 1/4 x 11.25 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$32.42 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons in 17.25" x 11.25" x 4" dimensions deliver reliable protection for mid-weight products with shallow profiles. Sold in bundles of 25 and shipped flat to reduce your storage footprint and freight costs. Ideal for apparel, books, picture frames, artwork, and mirrors.
Boxes - Corrugated

17.25x11.25x4 ECT-32 Kraft Corrugated Shipping Boxes Single Wall 25-Pack

PN: 17114

17 1/4 x 11.25 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$30.45 / BUNDLE
IN STOCK Industrial-grade ECT-32 single wall corrugated boxes measuring 16.25" × 12.25" × 9.31"–engineered for reliable stacking performance in high-volume fulfillment. Kraft construction delivers consistent crush strength with proven freight efficiency. Sold as a bundle of 25 boxes to maximize cost savings and reduce reorder frequency.
Boxes - Corrugated

16.25x12.25x9.31 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 16129

16 1/4 x 12.25 x 9 5/16 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$48.66 / BUNDLE
IN STOCK Heavy-duty double wall corrugated boxes built for high-performance warehousing. These 14x14x14 ECT-71 kraft cartons deliver maximum stacking strength while shipping and storing flat to reduce storage overhead. Bundle of 15 boxes per unit.
Boxes - Corrugated

14x14x14 ECT-71 Heavy-Duty Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD141414HDDW

14 x 14 x 14 in ECT-71 Double Wall Corrugated 15 PER BUNDLE
$131.22 / BUNDLE
IN STOCK ECT-48 double wall kraft corrugated cartons engineered for maximum protection and stacking performance in warehouse and fulfillment operations. 12x12x16" dimensions ship flat in bundles of 15, reducing storage footprint and freight costs. Heavy-duty construction ensures reliable containment for demanding logistics environments.
Boxes - Corrugated

12x12x16 ECT-48 Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD121216DW

12 x 12 x 16 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$62.71 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes sized 24" x 5" x 24" for side loading applications. Ships and stores flat to maximize warehouse space and reduce freight costs. Sold as a convenient bundle of 25 cartons.
Boxes - Corrugated

24x5x24 ECT-32 Kraft Side Loading Boxes 25-Pack

PN: 24524FOL

24 x 5 x 24 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$85.04 / BUNDLE
IN STOCK Eliminate box sizers and inventory bloat with these pre-scored multi-depth corrugated cartons. Fold down to multiple heights for perfect-fit packaging that cuts parcel fees and reduces your overall cardboard spend. Strong ECT-32 kraft construction in bundles of 25.
Boxes - Corrugated

17.25x11.5x12 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 25-Pack

PN: MD171112R

17 1/4 x 11.5 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$45.03 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 17" × 12" × 12" deliver proven stacking strength for mid-weight fulfillment operations. This 25-box bundle offers immediate inventory without minimum commitments. Built for warehouse efficiency and sustainable recyclable material.
Boxes - Corrugated

17x12x12 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 171212

17 x 12 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$53.99 / BUNDLE
IN STOCK Reliable ECT-32 single-wall corrugated boxes designed for standard industrial shipping and storage. Each 16" x 13" x 10" kraft box delivers consistent strength and stackability in a convenient 25-box bundle. Cost-effective, recyclable packaging for high-volume fulfillment operations.
Boxes - Corrugated

16x13x10 ECT-32 Kraft Corrugated Boxes

PN: 161310

16 x 13 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$46.94 / BUNDLE
IN STOCK Kraft ECT-51 double wall corrugated haz mat boxes engineered for safe transport of 4 x 1-gallon containers. Pre-printed with mandatory UN 4G warning labels and directional arrows. Ships and stores flat–10 cartons per bundle.
Boxes - Corrugated

14.25x14.25x7.625 ECT-51 Haz Mat Boxes 10-Pack

PN: HAZCO4G

14 1/4 x 14 1/4 x 7 5/8 in ECT-51 Double Wall Corrugated 10 PER BUNDLE
$131.42 / BUNDLE
IN STOCK ECT-32 single wall corrugated side loading boxes measuring 24" x 5" x 18" in kraft. Ships flat to maximize warehouse storage and reduce freight costs per unit. Bundle of 25 boxes provides reliable, cost-effective packaging for e-commerce fulfillment, shipping, and storage applications.
Boxes - Corrugated

24x5x18 ECT-32 Kraft Side Loading Boxes 25-Pack

PN: 24518FOL

24 x 5 x 18 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$59.47 / 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

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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 ->