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 Durable ECT-32 kraft corrugated boxes sized 21
Boxes - Corrugated

21x15x15 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 211515

21 x 15 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$59.73 / BUNDLE
IN STOCK Industrial-grade 20
Boxes - Corrugated

20x16x16 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 201616

20 x 16 x 16 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$47.92 / BUNDLE
IN STOCK Pre-scored multi-depth corrugated boxes that fold to your exact size–no carton sizer required. These 20x16x14 ECT-32 kraft boxes eliminate inventory bloat by replacing 3-5 single-depth cartons with one adjustable solution. Bundle of 20 boxes ships ready to use.
Boxes - Corrugated

20x16x14 Multi-Depth Corrugated Boxes ECT-32 Kraft - Bundle of 20

PN: MD201614

20 x 16 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$57.61 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes engineered for warehouses and fulfillment centers handling mid-weight products. These 20
Boxes - Corrugated

20x16x14 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 201614

20 x 16 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.99 / BUNDLE
IN STOCK Industrial-strength ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x12" ECT-32 Kraft Corrugated Boxes - Bundle of 25

PN: 201612

20 x 16 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$70.44 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x10 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 201610

20 x 16 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.58 / BUNDLE
IN STOCK These 20x16x4 shallow-depth corrugated cartons deliver reliable ECT-32 single-wall protection for lightweight to medium-weight items. Ships flat in bundles of 25 to maximize your warehouse space and cut freight costs. Ideal for apparel, books, artwork, and other thin products.
Boxes - Corrugated

20 x 16 x 4 ECT-32 Kraft Corrugated Shipping Boxes, Pack of 25

PN: 20164

20 x 16 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$52.66 / BUNDLE
IN STOCK ECT-32 kraft corrugated moving boxes engineered for warehouse efficiency and freight optimization. 18
Boxes - Corrugated

18x18x16 Kraft ECT-32 Deluxe Moving Boxes - 20 Pack

PN: 181816DPB

18 x 18 x 16 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$79.51 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated shipping boxes in 18
Boxes - Corrugated

18x18x16 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181816

18 x 18 x 16 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$56.67 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes sized 18
Boxes - Corrugated

18x18x15 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181815

18 x 18 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$69.13 / BUNDLE
IN STOCK Reliable 18x18x14
Boxes - Corrugated

18x18x14" ECT-32 Kraft Corrugated Boxes - Bundle of 20

PN: 181814

18 x 18 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$63.23 / BUNDLE
IN STOCK ECT-48 double wall kraft corrugated boxes built for maximum protection and stacking performance. These 18x18x12 heavy-duty cartons provide the durability warehouse managers and fulfillment directors demand for high-volume shipments. Bundle of 10 ships flat to maximize storage efficiency and minimize freight costs.
Boxes - Corrugated

18x18x12 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons (Bundle of 10)

PN: HD181812DW

18 x 18 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$46.08 / BUNDLE
IN STOCK Pre-scored multi-depth corrugated boxes that fold to your exact size–eliminate carton sizers and redundant SKUs. ECT-32 kraft construction delivers the right strength for your shipments while cutting parcel service costs. Bundle of 20 boxes ready to ship.
Boxes - Corrugated

18x18x12 Multi-Depth Corrugated Boxes, ECT-32 Kraft, Bundle of 20

PN: MD181812

18 x 18 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$60.86 / BUNDLE
IN STOCK Heavy-duty 18x18x10 corrugated shipping boxes engineered for demanding warehouse operations. ECT-32 single-wall kraft construction delivers reliable stacking performance and cost-effective volume shipping in convenient bundles of 20. Optimize your fulfillment costs with industrial-grade cardboard boxes built to protect and perform.
Boxes - Corrugated

18x18x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181810

18 x 18 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$56.40 / BUNDLE
IN STOCK Engineered for high-volume fulfillment operations, these 18x18x8 corrugated boxes deliver ECT-32 single-wall durability in an efficient mid-size format. Perfect for medium-weight products, seasonal storage, and freight optimization. Kraft construction is 100% recyclable–reduce waste while shipping smarter.
Boxes - Corrugated

18x18x8 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 18188

18 x 18 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.17 / BUNDLE
IN STOCK Reduce carton inventory and shipping costs with these pre-scored, adjustable 18x18x6 multi-depth corrugated boxes. Fold to 6, 5, 4, 3, or 2-inch heights without a carton sizer. Made from durable ECT-32 kraft corrugated. Sold as a bundle of 20.
Boxes - Corrugated

18x18x6" Multi-Depth Corrugated Boxes ECT-32 Kraft - Adjustable (20-Pack)

PN: MD18186

18 x 18 x 6 in ECT-32 Corrugated 20 PER BUNDLE
$49.55 / 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.