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

Boxes Mailers — compare in-stock Packrift options by exact spec, with public pricing and no account required. Ships from 5 US warehouses (Central IL, NE PA, South TX, SE GA, West CA), routed to the location nearest you. Below are verified catalog SKUs, collection paths, and a bulk-quote route.

What To Buy Here

  • You need a Packrift buying path for Boxes Mailers.
  • You want verified SKU links, current catalog specs, and a quote route instead of thin search copy.
  • You are comparing product fit before reordering or requesting a bulk quote.

Catalog Matches

SKU Product Dimensions Material Color Pack
1066 10x6x6 ECT-32 Kraft Long Corrugated Boxes - 25 Bundle 10 x 6 x 6 kraft corrugated kraft 25
1054 10x5x4 ECT-32 Kraft Corrugated Boxes - Long Side Opening, 25 Bundle 10 x 5 x 4 kraft corrugated kraft 25
1265 12x6x5" ECT-32 Kraft Corrugated Long Boxes - 25 Bundle 12 x 6 x 5 kraft corrugated kraft 25
1333 13x3x3 ECT-32 Kraft Corrugated Long Boxes - Easy Pack, 25 Bundle 13 x 3 x 3 kraft corrugated kraft 25
1388 13x8x8 ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25 Bundle 13 x 8 x 8 kraft corrugated kraft 25
1466 14x6x6" ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25 Bundle 14 x 6 x 6 kraft corrugated kraft 25
1477 14x7x7 ECT-32 Kraft Corrugated Boxes - Long Item Shipping, 25-Pack 14 x 7 x 7 kraft corrugated kraft 25
1664 16x6x4 ECT-32 Kraft Corrugated Boxes - Easy Pack Long Design, 25 Bundle 16 x 6 x 4 kraft corrugated kraft 25

Open a product page for current pricing and availability.

How To Choose

  • Start with the SKU row whose dimensions, material, color, and pack quantity match your current job.
  • Open the PDP before ordering when a field says not listed in current catalog data.
  • Use the bulk quote path for larger, recurring, mixed-SKU, or freight-sensitive purchases.

When Not To Use

  • Do not infer unlisted product specs from similar SKUs.
  • Do not use this page for regulated, food-contact, outdoor exposure, or load-rating requirements unless the exact SKU record verifies that requirement.

Substitutes and Accessories

Reorder or Bulk Quote

For reorders, use the linked PDP SKU or the reorder-by-SKU path. For larger or mixed orders, use the bulk quote path and include SKU, quantity, destination ZIP, and timing.

Related Paths

FAQ

Which products match this page?
The Catalog Matches table above lists verified in-stock SKUs for Boxes Mailers, with current dimensions, material, color, and pack quantity. Open a product page for full specs and current pricing.
What should I do when a field is not listed?
Do not infer it. Use the PDP or bulk quote path so the order can be checked against current catalog data.
Can I request a quote instead of ordering one SKU?
Yes. Use the bulk quote path with the relevant SKU list, quantities, destination ZIP, and required timing.

3086 Results

showing boxes & mailers products

IN STOCK Red 4.5x6 invoice enclosed envelopes keep shipping documents protected and organized in transit. Pre-printed design with adhesive backing for fast, secure application on packages. Sold as a case of 1,000 durable 2 mil poly envelopes.
Packing List Envelopes

4.5x6 Red 2 Mil Poly Invoice Enclosed Envelopes - Case of 1000

PN: PL463

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$50.00 / CASE
IN STOCK Pre-printed
Packing List Envelopes

4.5x6" Orange 2 Mil Poly Invoice Enclosed Envelopes - Case of 1000

PN: PL3

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$51.74 / CASE
IN STOCK Protect shipping documents and invoices with these pre-printed orange packing list envelopes. 4.5
Packing List Envelopes

4.5x5.5" Orange Invoice Enclosed Poly Envelopes - 2 Mil, Case of 1000

PN: PL17

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$48.85 / CASE
IN STOCK Pre-printed
Packing List Envelopes

4.5x5.5" Orange Invoice Enclosed Poly Envelopes - 1000/Case

PN: PL13

4 1/2 x 5.5 in 2 Mil Poly 1000 PER CASE
$32.29 / CASE
IN STOCK Protect critical documents and packing lists during shipment with these 7x6
Packing List Envelopes

7x6" Red Poly Packing List Envelopes - 1000/Case

PN: PL483

7 x 6 in 2 Mil Poly 1000 PER CASE
$78.08 / CASE
IN STOCK Secure important shipping documents with these 5x6
Packing List Envelopes

5x6" Red Packing List Envelopes 2 Mil Poly - 1000/Case

PN: PL485

5 x 6 in 2 Mil Poly 1000 PER CASE
$78.08 / CASE
IN STOCK Protect critical documents during transit with these 7x6
Packing List Envelopes

7x6 Packing List Envelopes - Red Self-Adhesive, 1000/Case

PN: PL414

7 x 6 in 2 Mil Poly 1000 PER CASE
$89.79 / CASE
IN STOCK Secure important documents during transit with these red 4.5x6 packing list envelopes. Made from durable 2 mil polyethylene with reliable adhesive backing, this case of 1000 envelopes meets shipping compliance requirements while protecting contents. Essential for e-commerce fulfillment, logistics, and warehouse operations.
Packing List Envelopes

4.5x6 Packing List Envelopes - Red Self-Adhesive, 1000/Case

PN: PL412

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$34.70 / CASE
IN STOCK Protect critical documents during transit with these 4.5x6 orange
Packing List Envelopes

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

PN: PL410

4 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$46.24 / CASE
IN STOCK Crystal-clear 2 mil poly document envelopes sized 12x15
Packing List Envelopes

12x15" Clear Face Document Envelopes, 2 Mil Poly - Case of 500

PN: PL527

12 x 15 in 2 Mil Poly 500 PER CASE
$162.53 / CASE
IN STOCK 10.75x6.75
Packing List Envelopes

10.75x6.75" Clear Face Document Envelopes, 2 Mil Poly - Case of 500

PN: PL70

10 3/4 x 6.75 in 2 Mil Poly 500 PER CASE
$47.16 / CASE
IN STOCK 10x12 clear face document envelopes with transparent poly construction for instant document verification. 2 mil thickness provides tamper evidence and document protection. 500 envelopes per case–the reliable packing list solution for high-volume e-commerce and 3PL operations.
Packing List Envelopes

10x12 Packing List Envelopes - Clear Self-Adhesive, 500/Case

PN: PL100

10 x 12 in 2 Mil Poly 500 PER CASE
$79.56 / CASE
IN STOCK See-through document envelopes that keep packing lists visible and protected. 9.5
Packing List Envelopes

9.5x12 2mil Clear Face Document Envelopes - 500/Case

PN: PL478

9 1/2 x 12 in 2 Mil Poly 500 PER CASE
$74.98 / CASE
IN STOCK Transparent 2 mil poly envelopes designed for e-commerce, 3PL, and shipping operations that demand visible document tracking. The clear face allows packing lists and miscellaneous documents to be read instantly without opening, while tamper-proof adhesion keeps contents secure. Ships in cases of 1000 units–the efficient choice for high-volume mailing operations.
Packing List Envelopes

9.5x6 Clear 2 Mil Document Envelopes - Tamper Proof, 1000/Case

PN: PL525

9 1/2 x 6 in 2 Mil Poly 1000 PER CASE
$83.36 / CASE
IN STOCK Transparent 2 mil poly document envelopes designed for e-commerce and 3PL operations. 9x14
Packing List Envelopes

9x14 Packing List Envelopes - Clear Self-Adhesive, 500/Case

PN: PL477

9 x 14 in 2 Mil Poly 500 PER CASE
$114.08 / CASE
IN STOCK Crystal-clear 2 mil poly document envelopes (7
Packing List Envelopes

7x10 Clear 2 Mil Document Envelopes - Tamper Proof, Case 1000

PN: PL520

7 x 10 in 2 Mil Poly 1000 PER CASE
$96.08 / 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 needs, send support the details before placing a large order.

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 calculator -> Contact support for larger orders -> Compare corrugated box types -> View products below ->

Buying FAQ

What should I check before buying Boxes & Mailers?

Compare Inside dimensions, Board grade or strength rating, Box style and closure, Case or bundle quantity before choosing a product from this collection.

Can I buy Boxes & Mailers online?

Use the product grid to open a product page, confirm the SKU, quantity, unit, availability, and price, then add available products to cart.

When should I contact support?

Contact support for pallet, recurring, mixed-SKU, or uncertain-fit orders, or when the product page does not answer the size, quantity, or delivery question.