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 Protect temperature-sensitive shipments with this pre-assembled 8x6x12 insulated shipping kit featuring seamless molded EPS foam insulation and 200#/ECT-32 white corrugated construction. Includes printed shipping instructions (Rush, Perishable, This Side Up arrows) for immediate compliance and professional handling. Lightweight, reusable design reduces shipping costs while ensuring product integrity from warehouse to doorstep.
Boxes - Corrugated

8x6x12 EPS Foam Insulated Shipping Kits 1/Case

PN: 212C

8 x 6 x 12 in EPS Foam/200# White Corrugated 1 PER CASE
$14.78 / CASE
IN STOCK Protect temperature-sensitive products with our 8x6x9 insulated shipping kit. Each pre-assembled case includes a seamless molded EPS foam container inside a 200#/ECT-32 white corrugated carton with a tight-fitting lid. Lightweight, reusable, and printed with Rush, Perishable, and This Side Up markings for full shipping compliance.
Boxes - Corrugated

8x6x9 EPS Foam Insulated Shipping Kits 8/Case

PN: 209C

8 x 6 x 9 in EPS Foam/200# White Corrugated 8 PER CASE
$99.84 / CASE
IN STOCK Protect temperature-sensitive products with this complete 8x6x7 insulated shipping kit featuring seamless molded EPS foam and 200# white corrugated cartons. Pre-assembled design saves prep time, while pre-printed shipping instructions (Rush, Perishable, This Side Up) ensure compliance. Lightweight, reusable, and sold by the case of 8.
Boxes - Corrugated

8x6x7 EPS Foam Insulated Shipping Kits 8/Case

PN: 207C

8 x 6 x 7 in EPS Foam/200# White Corrugated 8 PER CASE
$98.34 / CASE
IN STOCK Pre-assembled insulated shipping kits designed to protect temperature-sensitive products during transit. Each case includes 12 complete units with seamless molded EPS foam insulation, 200# white corrugated cartons, and tight-fitting lids. Pre-printed with Rush, Perishable, and This Side Up shipping instructions for compliance and quick handling.
Boxes - Corrugated

8x6x4.25 EPS Foam Insulated Shipping Kits 12/Case

PN: 204C

8 x 6 x 4 1/4 in EPS Foam/200# White Corrugated 12 PER CASE
$107.12 / CASE
IN STOCK Protect temperature-sensitive products with this 6x5x4.5" insulated shipping kit featuring seamless molded EPS foam and 200# white corrugated construction. Pre-assembled design with tight-fitting lid ships immediately. Case of 8 units keeps costs low while maintaining product integrity.
Boxes - Corrugated

6x5x4.5 EPS Foam Insulated Shipping Kits 8/Case

PN: 202C

6 x 5 x 4 1/2 in EPS foam / ECT-32 white corrugated 8 PER CASE
$79.91 / CASE
IN STOCK Keep temperature-sensitive products protected with this pre-assembled 6x4.5x3 insulated shipping kit. Each case includes 24 white corrugated cartons with seamless molded EPS foam liners and tight-fitting lids–ready to ship without assembly delays. Lightweight, reusable, and printed with Rush, Perishable, and orientation arrows for full compliance.
Boxes - Corrugated

6x4.5x3 Insulated Shipping Kit EPS Foam Corrugated Box 24/Case

PN: 201C

6 x 4.5 x 3 in EPS Foam/200# White Corrugated 24 PER CASE
$147.16 / CASE
IN STOCK Protect temperature-sensitive and fragile products with this 12x10x9 insulated foam shipping container. Constructed from thick 1.5" polystyrene foam that resists crushing and breakage while maintaining product integrity during transit. Lightweight, reusable, and recyclable–ideal for perishable goods, pharmaceuticals, and delicate items.
Boxes - Corrugated

12x10x9 Insulated Foam Container 1/Case

PN: 229F

12 x 10 x 9 in Polystyrene Foam 1 PER CASE
$19.76 / CASE
IN STOCK Protect temperature-sensitive shipments with these 8x6x9" insulated foam containers featuring 1.5" thick polystyrene construction. Stackable design maximizes warehouse space while the molded foam prevents product crushing and breakage. Sold as case of 8–lightweight, reusable, and recyclable for cost-effective perishable logistics.
Boxes - Corrugated

8x6x9 Insulated Foam Containers, 8/Case

PN: 209F

8 x 6 x 9 in Polystyrene Foam 8 PER CASE
$80.00 / CASE
IN STOCK Protect perishable products during shipment with this heavy-duty 8x6x4.25" insulated foam container. Built from 1.5" thick polystyrene foam that resists crushing and maintains temperature integrity with cold packs. Buy by the case (12 units) to maximize warehouse space efficiency through nesting design.
Boxes - Corrugated

8x6x4.25 Polystyrene Foam Insulated Shipper 12/Case

PN: 204F

8 x 6 x 4 1/4 in Polystyrene Foam 12 PER CASE
$122.20 / CASE
IN STOCK Move fast with these 9x4.5x4.5" fibreboard gift boxes–one-piece construction sets up instantly with zero assembly hassle. Ships and stores flat to maximize warehouse efficiency. Case of 100 holiday red boxes with gray interiors, perfect for retail goods and tumbler packaging.
Chipboard Cartons

9x4.5x4.5 Red Fibreboard Gift Boxes 100/Case

PN: GB944R

9 x 4.5 x 4 1/2 in Fibreboard 100 PER CASE
$219.04 / CASE
IN STOCK Professional-grade holiday red gift boxes designed for retail packaging and sunglasses. One-piece fibreboard construction with convenient flat-ship design reduces storage costs. Each case includes 100 boxes ready for immediate deployment.
Chipboard Cartons

6 x 4 1/2 x 4 1/2 in Red Corrugated Shipping Boxes 100-Pack

PN: GB644R

6 x 4.5 x 4 1/2 in Fibreboard 100 PER CASE
$183.04 / CASE
IN STOCK Move inventory faster with 4x4x4" holiday red fibreboard gift boxes designed for retail packaging and product protection. One-piece construction ships and stores flat–no assembly delays. Case of 100 boxes with gray interior and professional holiday red exterior.
Chipboard Cartons

4x4x4 Red Fibreboard Flat-Ship Gift Boxes 100-Pack

PN: GB444R

4 x 4 x 4 in Fibreboard 100 PER CASE
$149.98 / CASE
IN STOCK 12x6x12.75" Hazmat Plastic Jug Shipper Kit - DOT Approved, ECT-44 Corrugated
Boxes - Corrugated

12x6x12.75 ECT-44 DOT Approved Corrugated Hazmat Plastic Jug Shipper Kit

PN: HAZ1131

12 x 6 x 12 3/4 in ECT-44 Single Wall Corrugated 1 EACH
$16.33 / EACH
IN STOCK 17x8.5x9.3 ECT-44 Haz Mat Paint Can Shipper Kit - UN/DOT Approved, 2-Can
Boxes - Corrugated

17x8 1/2x9 5/16 ECT-44 1 Kit

PN: HAZFS2G

17 x 8.5 x 9.3 in ECT-44 Single Wall Corrugated 1 EACH
$33.51 / EACH
IN STOCK 8.5x8.5x9.3" UN-Approved Haz Mat Paint Can Foam Shipper Kit - ECT-44 Corrugated
Boxes - Corrugated

8 1/2x8 1/2x9 5/16 ECT-44 Corrugated Foam Shipper Boxes

PN: HAZFS1G

8 1/2 x 8 1/2 x 9 5/16 in ECT-44 Single Wall Corrugated 1 EACH
$20.84 / EACH
IN STOCK 10.25x5.125x6.19" ECT-44 Haz Mat Paint Shipper Kit - 2 Quart Foam
Boxes - Corrugated

10 1/4x5 1/8x6 3/16 ECT-44 Corrugated Shipping Boxes

PN: HAZFS2Q

10 1/4 x 5.125 x 6 3/16 in ECT-44 Single Wall Corrugated 1 EACH
$27.78 / EACH

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 ->