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 Heavy-duty ECT-44 kraft corrugated side loading boxes engineered for vertical stacking and efficient freight logistics. 30
Boxes - Corrugated

30x6x30 ECT-44 Kraft Side Loading Box - Flat Ship Bundle of 10

PN: HD30630FOL

30 x 6 x 30 in ECT-44 Corrugated 10 PER BUNDLE
$104.43 / BUNDLE
IN STOCK 21x21x21 cube boxes manufactured from ECT-32 single-wall kraft corrugated–the ideal solution for shipping round, cylindrical, and irregularly shaped products. Sold in convenient bundles of 15 boxes, flat-packed for space-efficient storage and quick assembly. Reliable crush resistance and proven stacking performance for high-volume fulfillment operations.
Boxes - Corrugated

21x21x21 ECT-32 Kraft Corrugated Cube Boxes - Bundle of 15

PN: 212121

21 x 21 x 21 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$105.95 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes deliver reliable strength for medium-weight shipping at an economical price point. These 18
Boxes - Corrugated

18x18x24 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 181824

18 x 18 x 24 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$54.08 / BUNDLE
IN STOCK Ship tall items efficiently with our 6x6x36 corrugated boxes in ECT-32 kraft single wall construction. These end-loading tall cardboard boxes are ideal for fishing rods, trophies, and shelving units. Sold flat in convenient bundles of 25 to maximize warehouse storage and reduce freight costs.
Boxes - Corrugated

6x6x36 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 6636

6 x 6 x 36 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$50.59 / BUNDLE
IN STOCK Ship tall items with confidence using our ECT-32 kraft corrugated boxes in 4x4x38 dimensions. Strong single-wall construction handles trophies, fishing rods, shelving, and more. Sold as a bundle of 25 flat-packed boxes–maximum freight efficiency with minimal storage footprint.
Boxes - Corrugated

4x4x38 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 4438

4 x 4 x 38 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$68.29 / BUNDLE
IN STOCK Protect high-value shipments with ECT-48 double wall kraft corrugated boxes designed for superior stacking performance and freight stability. These 18x18x24 heavy-duty cartons deliver maximum cushioning and compression resistance. Bundle of 10 ships flat to maximize your warehouse space and reduce logistics costs.
Boxes - Corrugated

18x18x24 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 10

PN: HD181824DW

18 x 18 x 24 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$66.92 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 26
Boxes - Corrugated

26x17x5" ECT-32 Kraft Corrugated Shipping Boxes - Bundle of 25

PN: 26175

26 x 17 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$120.42 / BUNDLE
IN STOCK Professional-grade 24x18x24 double wall corrugated boxes built with ECT-48 kraft material for maximum protection and stacking performance. These heavy-duty shipping cartons handle demanding logistics while flat-shipping design cuts your storage footprint. Sold in bundles of 10 for volume efficiency.
Boxes - Corrugated

24x18x24 ECT-48 Double Wall Kraft Boxes - Heavy-Duty Shipping, Bundle of 10

PN: HD241824DW

24 x 18 x 24 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$77.29 / BUNDLE
IN STOCK Protect high-value shipments with ECT-48 double wall construction and proven stacking performance. These 6x6x36 kraft corrugated boxes deliver superior burst strength and compression resistance for warehouses handling demanding freight. Bundle of 15 ships flat–maximize your storage efficiency and reduce handling costs.
Boxes - Corrugated

6x6x36 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 15

PN: HD6636DW

6 x 6 x 36 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$85.56 / BUNDLE
IN STOCK Industry-standard 30x13x13 corrugated boxes with ECT-32 single wall construction deliver reliable strength for mid-size shipments. Bundle of 20 ships and stores completely flat, cutting your warehouse footprint by up to 80%. Perfect for e-commerce fulfillment, retail distribution, and storage applications.
Boxes - Corrugated

30x13x13 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 301313

30 x 13 x 13 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$100.33 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 24
Boxes - Corrugated

24x20x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242020

24 x 20 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$47.09 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 36x8x8 corrugated boxes featuring wide side openings for fast packing. ECT-32 kraft construction provides reliable protection while minimizing dimensional weight charges. Sold flat in bundles of 25 for space-saving storage and fast deployment.
Boxes - Corrugated

36x8x8 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack

PN: 3688

36 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.69 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 36x8x4 ECT-32 kraft corrugated boxes. Long-side opening design speeds packing for wine bottles, umbrellas, carpet rolls, and similar products. Sold in convenient 25-box bundles–maximize your freight efficiency and reduce per-unit packaging costs.
Boxes - Corrugated

36x8x4 ECT-32 Kraft Corrugated Long Boxes - 25-Pack Bundle

PN: 3684

36 x 8 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$68.11 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 34x10x6 corrugated boxes featuring convenient long-side openings for fast packing. Made from ECT-32 kraft corrugated material with proven stacking strength. Sold flat in bundles of 10 to maximize your storage and freight efficiency.
Boxes - Corrugated

34x10x6 Shipping Boxes - ECT-32 Kraft Corrugated, 10-Pack

PN: 34106

34 x 10 x 6 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$21.43 / BUNDLE
IN STOCK Streamline packing of long, narrow items with these 32x12x12 corrugated boxes featuring wide lengthwise openings for fast loading. ECT-32 kraft corrugated construction delivers reliable protection while the slim profile maximizes freight efficiency. Bundle of 20 ships flat to save storage space.
Boxes - Corrugated

32x12x12 Shipping Boxes - ECT-32 Kraft Corrugated, 20-Pack

PN: 321212

32 x 12 x 12 in ECT-32 Corrugated 20 PER BUNDLE
$58.32 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 32x12x10 ECT-32 kraft corrugated boxes. Engineered long side opening for fast, easy packing of wine bottles, umbrellas, carpet rolls, and similar products. Sold as a bundle of 20 boxes, flat-shipped to maximize your freight efficiency.
Boxes - Corrugated

32x12x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 321210

32 x 12 x 10 in ECT-32 Corrugated 20 PER BUNDLE
$55.16 / 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.