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
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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.

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 7.5x10.5 2.5 Mil Non Perforated Lip Poly Mailers
Envelopes & Mailers

7.5x10.5 2.5 Mil Non Perforated Lip Poly Mailers

PN: B5155

10.5 x 7.5 in 2.5 Mil
$70.32 / CASE
IN STOCK 9x4.5x4.5 Kraft Gift Boxes 100/Case
Chipboard Cartons

9x4.5x4.5 Kraft Gift Boxes 100/Case

PN: GB944K

9 x 4.5 x 4.5 in 100 PER CASE
$112.88 / CASE
IN STOCK 8x8x3.5 Kraft Gift Boxes 100/Case
Chipboard Cartons

8x8x3.5 Kraft Gift Boxes 100/Case

PN: GB883K

8 x 8 x 3.5 in 100 PER CASE
$149.72 / CASE
IN STOCK 7x7x7 Kraft Gift Boxes 100/Case
Chipboard Cartons

7x7x7 Kraft Gift Boxes 100/Case

PN: GB777K

7 x 7 x 7 in 100 PER CASE
$140.99 / CASE
IN STOCK 6x6x6 Kraft Gift Boxes 100/Case
Chipboard Cartons

6x6x6 Kraft Gift Boxes 100/Case

PN: GB666K

6 x 6 x 6 in 100 PER CASE
$106.04 / CASE
IN STOCK 10x5x4 Kraft Gift Boxes 100/Case
Chipboard Cartons

10x5x4 Kraft Gift Boxes 100/Case

PN: GB105K

10 x 5 x 4 in 100 PER CASE
$96.17 / CASE
IN STOCK 17.88x13x15 Corrugated Boxes
Boxes - Corrugated

17.88x13x15 Corrugated Boxes

PN: 171315WS

17.875 x 13 x 15 in
$218.19 / EACH
IN STOCK 5.5x10 Red Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

5.5x10 Red Packing List Enclosed Envelopes 1000/Case

PN: PL469

5.5 x 10 in 1000 PER CASE
$99.42 / CASE
IN STOCK 7x5.5 Green Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

7x5.5 Green Packing List Enclosed Envelopes 1000/Case

PN: PL408

7 x 5.5 in 1000 PER CASE
$55.55 / CASE
IN STOCK 4.5x5.5 Red Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

4.5x5.5 Red Packing List Enclosed Envelopes 1000/Case

PN: PL453

4.5 x 5.5 in 1000 PER CASE
$34.50 / CASE
IN STOCK 7x5.5 Yellow Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

7x5.5 Yellow Packing List Enclosed Envelopes 1000/Case

PN: PL405

7 x 5.5 in 1000 PER CASE
$55.55 / CASE
IN STOCK 4.5x5.5 Yellow Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

4.5x5.5 Yellow Packing List Enclosed Envelopes 1000/Case

PN: PL401

4.5 x 5.5 in 1000 PER CASE
$33.55 / CASE
IN STOCK 24x24x12 Double Wall Boxes 10-Pack
Boxes - Corrugated

24x24x12 Double Wall Boxes 10-Pack

PN: HD242412DW

24 x 24 x 12 in 10 PER PACK
$75.83 / EACH
IN STOCK 24x24 Perforated Self Sealing Poly Mailers
Envelopes & Mailers
$94.81 / CASE
IN STOCK 18x18x28 Dish Pack Boxes 5-Pack
Boxes - Corrugated

18x18x28 Dish Pack Boxes 5-Pack

PN: 181828DISH

18 x 18 x 28 in 5 PER PACK
$47.09 / EACH
IN STOCK 6x4.5x4.5 Kraft Gift Boxes 100/Case
Chipboard Cartons

6x4.5x4.5 Kraft Gift Boxes 100/Case

PN: GB644K

6 x 4.5 x 4.5 in 100 PER CASE
$63.28 / 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.