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 These 30x30x6 corrugated cartons feature ECT-32 kraft construction and ship flat to maximize warehouse storage efficiency. Ideal for apparel, books, picture frames, and artwork requiring shallow-depth packaging. Bundle of 15 flat boxes reduces per-unit cost and freight overhead.
Boxes - Corrugated

30x30x6 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 30306

30 x 30 x 6 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$113.30 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner cartons sized 20x20x40 inches–perfect for tall, oversized, and irregularly shaped shipments. Manufactured from durable ECT-32 kraft corrugated with full overlap bottom reinforcement for maximum stacking strength. Sold as bundle of 10; pair with T202040OUTER to complete your shipping set.
Boxes - Corrugated

20x20x40 Telescoping Inner Kraft Boxes, ECT-32, Bundle of 10

PN: T202040INNER

20 x 20 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$94.04 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes sized 12x12x48
Boxes - Corrugated

12x12x48 ECT-32 Kraft Telescoping Inner Boxes - Adjustable Design, Bundle of 15

PN: T121248INNER

12 x 12 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$105.73 / BUNDLE
IN STOCK Heavy-duty ECT-48 kraft double wall boxes deliver superior protection and stacking performance for demanding warehouse operations. These 40x20x20 corrugated cartons combine maximum crush resistance with efficient flat-ship storage. Bundle of 5 units reduces your per-box cost and freight overhead.
Boxes - Corrugated

40x20x20 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5

PN: HD402020DW

40 x 20 x 20 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$83.72 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 36
Boxes - Corrugated

36x24x20 Shipping Boxes — ECT-32 Kraft Corrugated, 5-Pack

PN: 362420

36 x 24 x 20 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$38.36 / BUNDLE
IN STOCK ECT-48 double wall corrugated boxes built for high-performance industrial shipping. 36
Boxes - Corrugated

36x24x12 ECT-48 Double Wall Boxes - Heavy-Duty Kraft Cartons, Bundle of 5

PN: HD362412DW

36 x 24 x 12 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$57.98 / BUNDLE
IN STOCK ECT-48 heavy-duty double wall corrugated boxes built for demanding warehouse and fulfillment operations. These 36x24x8 kraft cartons deliver maximum stacking performance and freight efficiency while shipping flat to minimize storage overhead. Bundle of 10 units.
Boxes - Corrugated

36x24x8 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 10

PN: HD36248DW

36 x 24 x 8 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$153.19 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons sized 36
Boxes - Corrugated

36x24x8 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 36248

36 x 24 x 8 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$81.50 / BUNDLE
IN STOCK Ship smarter with 36x24x6 ECT-32 kraft corrugated boxes–engineered for shallow products like apparel, books, artwork, and frames. Ships flat to maximize your warehouse storage and reduce freight costs. Bundle of 10 boxes.
Boxes - Corrugated

36x24x6 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 36246

36 x 24 x 6 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$55.14 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 36x24x4
Boxes - Corrugated

36x24x4 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 36244

36 x 24 x 4 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$54.87 / BUNDLE
IN STOCK ECT-48 heavy-duty double wall corrugated boxes designed for demanding warehouse and fulfillment operations. 30
Boxes - Corrugated

30x30x16 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5

PN: HD303016DW

30 x 30 x 16 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$83.58 / BUNDLE
IN STOCK Heavy-duty 30
Boxes - Corrugated

30x30x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 303016

30 x 30 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$79.28 / BUNDLE
IN STOCK Professional-grade 24 x 24 x 36
Boxes - Corrugated

24x24x36 Shipping Boxes — ECT-32 Kraft Corrugated, 5-Pack

PN: 242436

24 x 24 x 36 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$47.80 / BUNDLE
IN STOCK Ship and store efficiently with these 14x4x52 side loading corrugated boxes featuring ECT-32 single-wall construction. Full overlap (FOL) design ships flat to maximize warehouse space. Bundle of 15 boxes reduces per-unit cost and streamlines your fulfillment operation.
Boxes - Corrugated

14x4x52 ECT-32 Side Loading Boxes - Full Overlap FOL, Bundle of 15

PN: 14452FOL

14 x 4 x 52 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$106.86 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 12
Boxes - Corrugated

12x12x48 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 121248

12 x 12 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$89.30 / BUNDLE
IN STOCK ECT-32 rated 8x4x52
Boxes - Corrugated

8x4x52" ECT-32 Side Loading Box - Full Overlap FOL Kraft, 15-Pack

PN: 8452FOL

8 x 4 x 52 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$66.07 / 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.