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 End-loading corrugated cartons designed for fast product insertion and protection. ECT-32 kraft construction with full overlap (FOL) flaps provides durability for shipping and storage. 2.6 cubic feet capacity per box–sold as a bundle of 10 and ships flat to maximize freight efficiency.
Boxes - Corrugated

30x5x30 ECT-32 Kraft Side Loading Boxes Corrugated 10-Pack

PN: 30530FOL

30 x 5 x 30 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$41.25 / BUNDLE
IN STOCK Ship long, narrow items with ease using these 28x12x12 ECT-32 kraft corrugated boxes featuring wide openings along the length. Engineered for wine bottles, umbrellas, carpet rolls, and similar products. Sold flat in bundles of 20 for maximum freight efficiency and cost savings.
Boxes - Corrugated

28x12x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 281212

28 x 12 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$53.93 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons sized 28" x 12" x 6" deliver reliable protection for shallow products with minimal dimensional weight. Ships flat to maximize storage efficiency and reduce freight spend. Bundle of 25 boxes–ready for immediate fulfillment operations.
Boxes - Corrugated

28x12x6 ECT-32 Kraft Corrugated Shipping Boxes Single Wall 25-Pack

PN: 28126

28 x 12 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$51.85 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes built for industrial strength and efficient stacking. These 26x14x14 cartons handle mid-weight products with proven durability. Sold in convenient bundles of 10 to keep your fulfillment operations moving.
Boxes - Corrugated

26x14x14 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 261414

26 x 14 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$31.09 / BUNDLE
IN STOCK Ship and store smarter with these 26x14x12 kraft corrugated boxes. ECT-32 single-wall construction provides reliable stacking strength for mid-weight cargo. Bundle of 20 boxes ships flat to maximize warehouse space and reduce freight costs.
Boxes - Corrugated

26x14x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 261412

26 x 14 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$92.69 / BUNDLE
IN STOCK Move more inventory with less space. Our 24x16x18 corrugated shipping boxes deliver ECT-32 single-wall durability in bundles of 15–built for high-volume fulfillment operations. Ships flat to reduce storage footprint while maintaining reliable stacking performance for your supply chain.
Boxes - Corrugated

24x16x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 241618

24 x 16 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$57.54 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes measuring 24" × 16" × 16" deliver reliable mid-weight strength for standard industrial shipping and storage applications. Sold in bundles of 10 units, these single-wall cardboard boxes maximize freight efficiency while maintaining recyclable sustainability standards. Ideal for warehouse managers optimizing cost-per-box without compromising structural integrity.
Boxes - Corrugated

24x16x16 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 241616

24 x 16 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$31.98 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for high-volume warehouse and fulfillment operations. These 24x16x14" shipping cartons deliver proven stacking strength and durability in a 15-box bundle. Recyclable cardboard construction reduces waste while maximizing freight efficiency.
Boxes - Corrugated

24x16x14 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 241614

24 x 16 x 14 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$49.58 / BUNDLE
IN STOCK ECT-32 single-wall corrugated boxes deliver reliable stacking strength and maximum freight efficiency in a 24" × 16" × 13" format. Shipped flat to minimize warehouse space and reduce handling time. Bundle of 15 boxes–the smart choice for high-volume fulfillment operations.
Boxes - Corrugated

24x16x13 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 241613

24 x 16 x 13 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$78.85 / BUNDLE
IN STOCK Eliminate carton sizer complexity with these pre-scored 24x16x12 corrugated boxes that fold to multiple heights. ECT-32 kraft construction delivers reliable stacking strength while consolidating your inventory into a single versatile SKU. Save on storage, freight, and parcel service fees by right-sizing every shipment.
Boxes - Corrugated

24x16x12 ECT-32 Multi-Depth Kraft Corrugated Shipping Boxes 15-Pack

PN: MD241612

24 x 16 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$44.07 / BUNDLE
IN STOCK Industrial-grade 24x16x10 corrugated shipping boxes built from ECT-32 single-wall kraft material for dependable stacking and freight protection. Each bundle contains 15 boxes, delivering consistent performance at volume pricing. Recyclable kraft construction reduces waste while maintaining structural integrity for demanding warehouse operations.
Boxes - Corrugated

24x16x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 241610

24 x 16 x 10 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$42.40 / BUNDLE
IN STOCK Standard-strength ECT-32 kraft corrugated boxes in 24x16x8" dimensions deliver dependable protection for mid-weight shipments. This 20-pack bundle offers efficient volume pricing for warehouse managers and fulfillment operations. Fully recyclable and built for stacking performance.
Boxes - Corrugated

24x16x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 24168

24 x 16 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$53.41 / BUNDLE
IN STOCK Engineered for shallow-product shipping, these 24x16x4 flat corrugated boxes feature ECT-32 kraft construction and ship nested to maximize your storage and freight efficiency. Bundle of 25 gives you the volume savings your warehouse needs while maintaining reliable stacking performance.
Boxes - Corrugated

24x16x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 24164

24 x 16 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$62.95 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes designed for reliable mid-weight shipping and storage. 23x17x12" dimensions deliver optimal freight efficiency and stacking performance. Sold in bundles of 10–stock what you need, reduce per-unit costs.
Boxes - Corrugated

23x17x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 231712

23 x 17 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$34.46 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 22" × 18" × 16" deliver reliable single-wall strength for mid-weight industrial shipments and warehouse storage. Sold in bundles of 15 for volume savings and freight efficiency. Recyclable kraft construction reduces your sustainability footprint.
Boxes - Corrugated

22x18x16 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 221816

22 x 18 x 16 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$56.35 / BUNDLE
IN STOCK Industrial-grade 22x18x12" corrugated boxes built from ECT-32 kraft material–the standard for reliable shipping, stacking, and storage. This 15-pack bundle reduces per-unit costs while delivering consistent performance for warehouse operations. Recyclable construction supports sustainability goals without sacrificing durability.
Boxes - Corrugated

22x18x12 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 221812

22 x 18 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$49.64 / 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 ->