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 shipping documents with adhesive-backed 2 mil poly packing list envelopes. Pre-printed "Packing List Enclosed - Thank You" design in red. 4.5" x 5.5" size holds miscellaneous documents securely. Sold by the case of 1,000 units.
Packing List Envelopes

4.5x5.5 2 Mil Red Packing List Envelopes 1000/Case PL480

PN: PL480

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$39.13 / CASE
IN STOCK Keep shipping documents organized and protected with these adhesive-backed red packing list envelopes. 4.5" x 5.5" size holds standard documents; durable 2mil poly construction withstands handling and environmental exposure. Sold by the case of 1000 units for maximum value.
Packing List Envelopes

4.5x5.5 2 Mil Red Packing List Envelopes 1000/Case PL438

PN: PL438

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$45.01 / CASE
IN STOCK Heavy-duty 2 mil polyethylene SDS envelopes with pre-printed safety data sheet messaging. 7" x 5.5" red envelopes feature adhesive backing to secure to shipments, pallets, or documentation. Case of 1000 envelopes reduces regulatory risk and improves shipping compliance.
Packing List Envelopes

7x5.5 2 Mil Red Packing List Envelopes 1000/Case

PN: PL400

7 x 5.5 in 2 Mil Poly 1000 PER CASE
$93.41 / CASE
IN STOCK Durable 2 mil polyethylene SDS envelopes with pre-printed "Safety Data Sheet" messaging for instant regulatory compliance. 6.5" x 10" yellow/orange envelopes feature adhesive backing to secure packing lists and material safety data sheets. Order by the case (1000 units) for cost-effective bulk shipping and inventory management.
Packing List Envelopes

6.5x10 2 Mil Yellow SDS Packing List Envelopes 1000/Case

PN: PL497

6 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$115.11 / CASE
IN STOCK Industrial-grade 5.5" x 10" packing list envelopes with pre-printed "Safety Data Sheet" messaging. Heavy 2 mil poly construction with permanent adhesive backing adheres securely to packages, pallets, and documentation. Ships 1,000 per case for cost-effective bulk ordering.
Packing List Envelopes

5.5x10 2 Mil Clear SDS Packing List Envelopes 1000/Case

PN: PL496

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$95.09 / CASE
IN STOCK Heavy-duty 2 mil poly SDS envelopes with pre-printed "Safety Data Sheet" text and adhesive backing for secure document containment. 5.5" x 10" size accommodates standard safety data sheets and packing lists. Case of 1000 envelopes provides cost-effective compliance documentation for industrial shipping.
Packing List Envelopes

5.5x10 2 Mil SDS Packing List Envelopes 1000/Case

PN: PL494

5 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$109.36 / CASE
IN STOCK Pre-printed "Safety Data Sheet Enclosed" envelopes built tough for industrial shipping. Heavy 2 mil poly construction with reliable adhesive backing adheres to any surface. 4.5" x 6" format, sold by the case of 1,000–reduce compliance risk and streamline your shipping process.
Packing List Envelopes

4.5x6 2 Mil Packing List Envelopes 1000/Case

PN: PL498

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$86.33 / CASE
IN STOCK Keep regulatory documentation secure and visible with pre-printed Safety Data Sheet envelopes. Heavy 2 mil clear poly with adhesive backing adheres to boxes, pallets, and containers. 6.5x5" dimensions hold standard SDS documents; sold in convenient 1000-unit cases for high-volume operations.
Packing List Envelopes

6.5x5 Clear SDS Packing List Envelopes 1000/Case

PN: PL495

6 1/2 x 5 in 2 Mil Poly 1000 PER CASE
$86.33 / CASE
IN STOCK Protect and display documents in transit with 9x12" resealable clear face envelopes featuring 2 mil poly durability. Water, oil, and dirt resistant pressure-sensitive adhesion ensures reliable sealing on clean surfaces. Sold as case of 500–ideal for high-volume e-commerce and 3PL operations.
Packing List Envelopes

9x12 2 Mil Resealable Clear Face Packing List Envelopes 500/Case

PN: RCF912

9 x 12 in 2 Mil Poly 500 PER CASE
$127.49 / CASE
IN STOCK Protect and display shipping documents with 2 mil pressure-sensitive clear face envelopes. 8.5x10.5" size holds standard packing lists, warranties, and instructions securely. Strong adhesion on clean surfaces resists water, oil, and dirt–500 envelopes per case for high-volume operations.
Packing List Envelopes

8.5x10.5 2 Mil Resealable Clear Face Packing List Envelopes 500/Case

PN: RCF810

8 1/2 x 10.5 in 2 Mil Poly 500 PER CASE
$99.98 / CASE
IN STOCK Protect critical documents with our 6x9" resealable clear face envelopes featuring durable 2 mil poly construction. Pressure-sensitive adhesion sticks securely to clean surfaces, resisting water, oil, and dirt. Each case includes 1,000 envelopes for high-volume shipping and 3PL operations.
Packing List Envelopes

6x9 2 Mil Resealable Clear Face Packing List Envelopes 1000/Case

PN: RCF69

6 x 9 in 2 Mil Poly 1000 PER CASE
$140.04 / CASE
IN STOCK Keep shipping documents visible and protected with these 6x6" resealable clear face envelopes. Made from durable 2 mil polyethylene with pressure-sensitive adhesion, they resist water, oil, and dirt while securing warranties, instructions, and packing lists directly to packages. Case of 1,000 envelopes.
Packing List Envelopes

6x6 2 Mil Resealable Clear Face Packing List Envelopes 1000/Case

PN: RCF66

6 x 6 in 2 Mil Poly 1000 PER CASE
$140.23 / CASE
IN STOCK Resealable 5x10" clear face envelopes with superior 2 mil poly construction for maximum durability and document visibility. Pressure-sensitive adhesion sticks securely to clean surfaces–perfect for packing lists, instructions, and warranties that require reuse. Case of 1000 delivers cost-effective tamper-evident document protection for high-volume e-commerce and 3PL operations.
Packing List Envelopes

5x10 2 Mil Clear Face Packing List Envelopes 1000/Case

PN: RCF510

5 x 10 in 2 Mil Poly 1000 PER CASE
$133.35 / CASE
IN STOCK Durable 4x6" resealable document envelopes featuring 2 mil poly construction and crystal-clear visibility for packing lists, warranties, and reusable documents. Pressure-sensitive adhesion bonds securely to clean surfaces. Sold by the case (1000 envelopes) for high-volume shipping and fulfillment operations.
Packing List Envelopes

4x6 2 Mil Clear Face Packing List Envelopes 1000/Case

PN: RCF46

4 x 6 in 2 Mil Poly 1000 PER CASE
$100.46 / CASE
IN STOCK Fluorescent orange packing list envelopes sized 8.5" x 10" with "Packing List Enclosed" pre-printed on heavy 2 mil poly material. Hot melt adhesive backing ensures strong, reliable adhesion to corrugated boxes and paper surfaces. Sold as 1 case of 1,000 units.
Packing List Envelopes

8.5x10 2 Mil Clear Self-Adhesive Packing List Envelopes 1000/Case

PN: GSA30EL

8 1/2 x 10 in 2 Mil Poly 1000 PER CASE
$147.17 / CASE
IN STOCK Bright fluorescent orange packing list envelopes designed to protect shipping documents and ensure compliance. Pre-printed "Packing List Enclosed" messaging in heavy-duty 2 mil poly with industrial-strength hot melt adhesive backing. Case of 1000 envelopes (5 1/4" x 8").
Packing List Envelopes

5.25x8 2 Mil Clear Packing List Envelopes 1000/Case

PN: GSA20EL

5 1/4 x 8 in 2 Mil Poly 1000 PER CASE
$78.42 / 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 ->