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
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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
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.

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 7x4x4 White Corrugated Mailers 50-Pack
Boxes - Mailers

7x4x4 White Corrugated Mailers 50-Pack

PN: M744

7 x 4 x 4 in 50 PER PACK
$35.93 / EACH
IN STOCK 4x3x2 White Corrugated Mailers 25/Bundle
Boxes - Mailers

4x3x2 White Corrugated Mailers 25/Bundle

PN: M432RP25

4 x 3 x 2 in 25 PER BUNDLE
$9.46 / EACH
IN STOCK 12x4x4 White Corrugated Mailers 25/Bundle
Boxes - Mailers

12x4x4 White Corrugated Mailers 25/Bundle

PN: M1244RP25

12 x 4 x 4 in 25 PER BUNDLE
$30.36 / EACH
IN STOCK 9x6x4 White Mailers 10/Bundle
Boxes - Mailers

9x6x4 White Mailers 10/Bundle

PN: M964RP10

9 x 6.25 x 4 in 10 PER BUNDLE
$19.11 / EACH
IN STOCK 20x20x10 Corrugated Boxes 15-Pack
Boxes - Corrugated

20x20x10 Corrugated Boxes 15-Pack

PN: 202010

20 x 20 x 10 in 15 PER PACK
$50.15 / EACH
IN STOCK 16x10x10 Corrugated Boxes 10/Bundle
Boxes - Corrugated

16x10x10 Corrugated Boxes 10/Bundle

PN: 161010RP10

16 x 10 x 10 in 10 PER BUNDLE
$24.79 / EACH
IN STOCK 12x10x4 Multi Depth Corrugated Boxes 25-Pack
Boxes - Corrugated

12x10x4 Multi Depth Corrugated Boxes 25-Pack

PN: MD12104

12 x 10 x 4 in 25 PER PACK
$22.63 / EACH
IN STOCK 6x6x4 Kraft Gift Boxes 100/Case
Chipboard Cartons

6x6x4 Kraft Gift Boxes 100/Case

PN: GB664K

6 x 6 x 4 in 100 PER CASE
$82.19 / CASE
IN STOCK 12x9x3 White Mailers 20/Bundle
Boxes - Mailers

12x9x3 White Mailers 20/Bundle

PN: M1293RP20

12.125 x 9.25 x 3 in 20 PER BUNDLE
$45.75 / EACH
IN STOCK 4.5x6 Yellow Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

4.5x6 Yellow Packing List Enclosed Envelopes 1000/Case

PN: PL486

4.5 x 6 in 1000 PER CASE
$51.43 / CASE
IN STOCK 4.5x6 Red Striped Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes
$40.04 / CASE
IN STOCK 4.5x6 Red Open-End Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes
$46.05 / CASE
IN STOCK 14x6x6 Kraft Gift Boxes 50/Case
Chipboard Cartons

14x6x6 Kraft Gift Boxes 50/Case

PN: GB1466K

14 x 6 x 6 in 50 PER CASE
$113.76 / CASE
IN STOCK 10x12 Yellow Packing List Enclosed Envelopes 500/Case
Packing List Envelopes

10x12 Yellow Packing List Enclosed Envelopes 500/Case

PN: PL428

10 x 12 in 500 PER CASE
$133.95 / CASE
IN STOCK 20x12x12 Kraft Multi-Depth Corrugated Shipping Boxes 20-Pack
Boxes - Corrugated

20x12x12 Kraft Multi-Depth Corrugated Shipping Boxes 20-Pack

PN: MD201212

20 x 12 x 12 in 20 PER PACK
$47.61 / EACH
IN STOCK 4x4x2 Kraft Gift Boxes 100/Case
Chipboard Cartons

4x4x2 Kraft Gift Boxes 100/Case

PN: GB442K

4 x 4 x 2 in 100 PER CASE
$38.03 / 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.