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 Eco-conscious shipping managers rely on these 7" x 5.5" pre-printed packing list envelopes to protect documents and reduce environmental impact. Made from 100% recycled green tinted polyethylene with hot melt adhesive for secure attachment to any carton. Sold by the case of 1,000 units.
Packing List Envelopes

7x5.5 Green Packing List Envelopes 1000/Case

PN: PQGREEN19

7 x 5.5 in Recycled Green Tinted Polyethylene 1000 PER CASE
$108.36 / CASE
IN STOCK 4.5x5.5" Recycled Packing List Envelopes - Green, 1000/Case
Packing List Envelopes

4.5x5.5 Green Packing List Envelopes 1000/Case

PN: PQGREEN12

4 1/2 x 5.5 in Recycled Green Tinted Polyethylene 1000 PER CASE
$65.77 / CASE
IN STOCK Pre-printed bilingual packing list envelopes protect documents and ensure shipping compliance in one step. Heavy-duty 2 mil poly construction with hot melt adhesive backing adheres securely to corrugated boxes and paper. Case of 1,000 envelopes–cost-effective solution for high-volume shippers.
Packing List Envelopes

7.5x5.5 2 Mil Packing List Envelopes 1000/Case

PN: PL500

7 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$81.81 / CASE
IN STOCK Protect and organize shipping documents with our 4.5x5.5" bilingual packing list envelopes made from durable 2 mil poly material. Pre-printed in English and French with "Packing List Enclosed," these adhesive-backed envelopes securely attach to packages for compliance and professionalism. Order by the case of 1000 and reduce document handling costs.
Packing List Envelopes

4.5x5.5 2 Mil Packing List Envelopes 1000/Case PL501

PN: PL501

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$42.48 / CASE
IN STOCK Protect shipping documents with these durable 7x10 orange packing list envelopes. Made from 2 mil poly material and sold by the case of 1,000, they feature the pre-printed "Packing List/Invoice Enclosed" messaging to streamline your fulfillment process. Quick-opening design speeds up packing operations.
Packing List Envelopes

7x10 2 Mil Orange Self-Adhesive Packing List Envelopes 1000/Case

PN: PL419

7 x 10 in 2 Mil Poly 1000 PER CASE
$95.16 / CASE
IN STOCK Professional-grade 4.5" x 6" packing list envelopes with pre-printed messaging protect invoices and shipping documents from moisture and damage during transit. Orange color ensures maximum visibility on packages. Ships as case of 1000, 2 mil polyethylene construction.
Packing List Envelopes

4.5x6 2 Mil Orange Packing List Enclosed Envelopes 1000/Case JMR12

PN: JMR12

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$49.52 / CASE
IN STOCK Keep shipping documents safe and visible with pre-printed "Packing List Enclosed" envelopes. These 4.5" x 6" orange 2 mil poly envelopes ship in a case of 1,000 units and provide reliable document protection throughout the shipping cycle. Adhesive seal ensures contents stay secure and organized.
Packing List Envelopes

4.5x6 2 Mil Orange Self-Adhesive Packing List Envelopes 1000/Case

PN: JMR10

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$49.52 / CASE
IN STOCK Protect critical shipping documents with pre-printed "Important Invoice and/or Packing List Enclosed" messaging. These 4.5" x 6" red poly envelopes (2 mil) keep invoices visible and secure throughout the fulfillment process. Sold in cases of 1,000 for high-volume shipping operations.
Packing List Envelopes

4.5x6 Red Document Packing List Envelopes 1000/Case

PN: PL418

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$46.05 / CASE
IN STOCK Keep shipping documents secure with these 4.5x6 orange packing list envelopes. Pre-printed "Important Packing List And/Or Invoice Enclosed" messaging ensures proper handling at every destination. 2 mil durable poly material, 1000 envelopes per case.
Packing List Envelopes

4.5x6 Orange Document Packing List Envelopes 1000/Case

PN: PL4

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$46.05 / CASE
IN STOCK Protect your shipping documents with pre-printed 4.5x6" orange packing list envelopes featuring script-font messaging and heavy 2 Mil poly construction. Hot melt adhesive backing ensures strong, reliable adhesion to paper and corrugated surfaces. Sold as a case of 1000 units.
Packing List Envelopes

4.5x6 2 Mil Orange Packing List Envelopes 1000/Case PL2

PN: PL2

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$35.58 / CASE
IN STOCK 10x12 Red Packing List Enclosed Envelopes - 2 Mil Poly, Case/500
Packing List Envelopes

10x12 2 Mil Red Packing List Enclosed Envelopes

PN: PL435

10 x 12 in 2 Mil Poly 500 PER CASE
$99.00 / CASE
IN STOCK Protect shipping documents with pre-printed 10" x 12" orange packing list envelopes. Heavy-duty 2 mil poly construction with hot melt adhesive ensures secure attachment to corrugated boxes and paper products. Case of 500 envelopes ready to streamline your fulfillment operations.
Packing List Envelopes

10x12 2 Mil Orange Packing List Enclosed Envelopes 500/Case

PN: PL434

10 x 12 in 2 Mil Poly 500 PER CASE
$99.00 / CASE
IN STOCK Pre-printed 7" x 6" red packing list envelopes protect documents and streamline fulfillment operations. Heavy-duty 2 mil poly construction with hot melt adhesive backing ensures reliable adhesion to corrugated boxes and paper. Sold by the case–1,000 envelopes per order.
Packing List Envelopes

7x6 2 Mil Red Packing List Enclosed Envelopes 1000/Case

PN: PL491

7 x 6 in 2 Mil Poly 1000 PER CASE
$51.12 / CASE
IN STOCK Keep packing lists protected and easily identifiable with these pre-printed 7" x 6" yellow packing list enclosed envelopes. Heavy 2 mil poly construction with hot melt adhesive backing ensures strong adhesion to corrugated boxes and paper. Order by the case of 1,000 units and streamline your fulfillment operations.
Packing List Envelopes

7x6 2 Mil Yellow Packing List Enclosed Envelopes 1000/Case

PN: PL490

7 x 6 in 2 Mil Poly 1000 PER CASE
$51.12 / CASE
IN STOCK Protect your shipping documents with pre-printed 7" x 6" packing list envelopes featuring heavy-duty 2 mil poly construction and bold orange coloring for instant visibility. Hot melt adhesive backing bonds securely to paper and corrugated boxes. Order a case of 1,000 envelopes and eliminate lost or damaged packing lists.
Packing List Envelopes

7x6 2 Mil Orange Self-Adhesive Packing List Envelopes 1000/Case

PN: PL32

7 x 6 in 2 Mil Poly 1000 PER CASE
$58.79 / CASE
IN STOCK Protect critical shipping documents with these pre-printed 7" x 5.5" blue packing list envelopes. Heavy 2 mil poly construction with hot melt adhesive backing ensures reliable adhesion to corrugated boxes and paper surfaces. Sold by the case–1,000 envelopes per order.
Packing List Envelopes

7x5.5 2 Mil Blue Packing List Enclosed Envelopes

PN: PL458

7 x 5.5 in 2 Mil Poly 1000 PER CASE
$48.07 / CASE

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 ->