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 ECT-32 kraft corrugated side loading boxes engineered for fast, efficient product insertion. Each 30x5x24
Boxes - Corrugated

30x5x24 ECT-32 Kraft Side Loading Boxes - Full Overlap, Bundle of 10

PN: 30524FOL

30 x 5 x 24 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$34.82 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 21
Boxes - Corrugated

21x14x14 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 211414

21 x 14 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.31 / BUNDLE
IN STOCK Heavy-duty 21x14x10 corrugated boxes engineered for high-volume shipping and storage. ECT-32 kraft construction delivers superior stacking strength and crush resistance. Buy by the bundle of 20 and reduce per-unit costs while maximizing freight efficiency.
Boxes - Corrugated

21x14x10" ECT-32 Kraft Corrugated Boxes - Durable Shipping, Bundle of 20

PN: 211410

21 x 14 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$46.43 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 20
Boxes - Corrugated

20x15x15 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 201515

20 x 15 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$55.27 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 20
Boxes - Corrugated

20x15x12" ECT-32 Kraft Corrugated Boxes - Standard Strength Shipping, 25-Pack

PN: 201512

20 x 15 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.50 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes sized 20
Boxes - Corrugated

20x15x9 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 20159

20 x 15 x 9 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$61.15 / BUNDLE
IN STOCK Maximize freight efficiency with these 20x15x6
Boxes - Corrugated

20x15x6" ECT-32 Kraft Corrugated Boxes - Shallow Depth Shipping, Bundle of 25

PN: 20156

20 x 15 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.57 / BUNDLE
IN STOCK ECT-48 double wall corrugated boxes built for heavy loads and repeated handling. These 16
Boxes - Corrugated

16x16x18 ECT-48 Double Wall Boxes - Heavy Duty Kraft Cartons, Bundle of 15

PN: HD161618DW

16 x 16 x 18 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$107.35 / BUNDLE
IN STOCK Industrial-grade 20x15x10
Boxes - Corrugated

20x15x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 201510

20 x 15 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$47.79 / BUNDLE
IN STOCK Ship and store with confidence using these 15x15x20 corrugated boxes built from ECT-32 kraft material. Each bundle contains 25 boxes ideal for mid-weight products, offering reliable stacking strength and freight efficiency. Recyclable kraft construction reduces your environmental footprint while keeping costs down.
Boxes - Corrugated

15x15x20 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack

PN: 151520

15 x 15 x 20 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$73.34 / BUNDLE
IN STOCK Ship tall items efficiently with 6x6x29 corrugated boxes featuring ECT-32 kraft construction and end-load design for quick insertion and sealing. This 25-pack bundle of tall cardboard boxes ships flat to maximize freight efficiency and minimize storage footprint. Ideal replacement for mailing tubes when shipping trophies, fishing rods, shelving, and other elongated products.
Boxes - Corrugated

6x6x29 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 6629

6 x 6 x 29 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$64.32 / BUNDLE
IN STOCK Ship and store flat to cut your warehouse footprint in half. These 18x18x3
Boxes - Corrugated

18x18x3" ECT-32 Kraft Corrugated Boxes - Bundle of 25

PN: 18183

18 x 18 x 3 in ECT-32 Corrugated 25 PER BUNDLE
$82.13 / BUNDLE
IN STOCK Reliable ECT-32 kraft corrugated boxes sized 16
Boxes - Corrugated

16x16x19 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 161619

16 x 16 x 19 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$83.11 / BUNDLE
IN STOCK Ideal for fulfillment operations shipping shallow products, these 22
Boxes - Corrugated

22x14x4 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 22144

22 x 14 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$72.94 / BUNDLE
IN STOCK Professional-grade 20x16x14
Boxes - Corrugated

20x16x14" ECT-44 Heavy-Duty Kraft Corrugated Boxes - Bundle of 15

PN: HD201614

20 x 16 x 14 in ECT-44 Single Wall Corrugated 15 PER BUNDLE
$57.30 / BUNDLE
IN STOCK Heavy-duty ECT-32-B kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x9 ECT-32-B Kraft Corrugated Shipping Boxes - Bundle of 25

PN: 20169

20 x 16 x 9 in ECT-32-B Corrugated 25 PER BUNDLE
$99.95 / BUNDLE

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.