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 Industrial-grade 26x26x10 corrugated shipping boxes built from ECT-32 kraft material for maximum stacking performance and freight reliability. These heavy-duty cardboard boxes deliver superior crush resistance and are sold as a convenient bundle of 10. Perfect for warehouse managers and fulfillment directors demanding consistent quality at scale.
Boxes - Corrugated

26x26x10 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 262610

26 x 26 x 10 in ECT-32 Corrugated 10 PER BUNDLE
$49.76 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 26x26x8
Boxes - Corrugated

26x26x8 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 26268

26 x 26 x 8 in ECT-32 Corrugated 10 PER BUNDLE
$75.23 / BUNDLE
IN STOCK Ship shallow products efficiently with these 26x26x6 ECT-32 kraft corrugated boxes. Engineered for apparel, books, frames, and artwork with optimal stacking strength. Sold flat in bundles of 10 to maximize warehouse space and reduce freight volume.
Boxes - Corrugated

26x26x6 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 26266

26 x 26 x 6 in ECT-32 Corrugated 10 PER BUNDLE
$48.99 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner carton designed for tall and irregularly shaped items up to 48 inches. Built from ECT-32 kraft corrugated with reinforced FOL bottom for maximum stacking strength. Pair with T4448OUTER to complete your shipping solution–25 inner boxes per bundle.
Boxes - Corrugated

4x4x48 ECT-32 Kraft Telescoping Inner Box - Adjustable Design, 25-Pack

PN: T4448INNER

4 x 4 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$61.14 / BUNDLE
IN STOCK Industrial-grade 40x12x12 double wall corrugated boxes with ECT-48 rating deliver superior stacking strength and freight efficiency for high-volume fulfillment operations. Kraft construction ships flat to maximize warehouse storage and reduce logistics costs. Bundle of 10 ready to deploy.
Boxes - Corrugated

40x12x12 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 10

PN: HD401212DW

40 x 12 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$110.47 / BUNDLE
IN STOCK Professional-grade 28x24x20
Boxes - Corrugated

28x24x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 282420

28 x 24 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$115.53 / BUNDLE
IN STOCK Industrial-grade 26x26x20 double wall corrugated boxes deliver ECT-48 rated strength for demanding warehouses and fulfillment centers. Ships and stores flat to maximize warehouse efficiency–bundle of 10 boxes ready to deploy. Built for high-volume shippers who need reliable stacking performance and freight cost savings.
Boxes - Corrugated

26x26x20 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 10

PN: HD262620DW

26 x 26 x 20 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$229.42 / BUNDLE
IN STOCK Heavy-duty 26x26x16 corrugated shipping cartons built with ECT-32 kraft material for reliable stacking and freight efficiency. Each bundle includes 10 boxes–perfect for mid-size shipments in warehouse, fulfillment, and distribution operations. Recyclable kraft construction reduces environmental impact while maintaining maximum load capacity.
Boxes - Corrugated

26x26x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 262616

26 x 26 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$80.69 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 26
Boxes - Corrugated

26x26x4 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 26264

26 x 26 x 4 in ECT-32 Corrugated 15 PER BUNDLE
$76.36 / BUNDLE
IN STOCK Industrial-grade 24x24x28 corrugated shipping boxes built from ECT-32 kraft material for reliable stacking and freight protection. Each bundle contains 10 boxes, optimizing your warehouse inventory and reducing per-unit costs. Fully recyclable kraft construction meets modern sustainability standards while delivering the strength your operation demands.
Boxes - Corrugated

24x24x28 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242428

24 x 24 x 28 in ECT-32 Corrugated 10 PER BUNDLE
$105.83 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes in 22x22x30 dimensions deliver reliable strength for warehouse, fulfillment, and shipping operations. Kraft construction stacks efficiently and maximizes pallet density. Sold as bundles of 10 for volume savings and freight efficiency.
Boxes - Corrugated

22x22x30 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 222230

22 x 22 x 30 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$90.48 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes designed for shipping tall items like trophies, shelving, and fishing rods. 16x16x36
Boxes - Corrugated

16x16x36 Shipping Boxes - ECT-32 Kraft Corrugated, 10-Pack

PN: 161636

16 x 16 x 36 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$50.67 / BUNDLE
IN STOCK ECT-32 single-wall corrugated lamp boxes sized 12
Boxes - Corrugated

12x12x46 ECT-32 Kraft Lamp Boxes - Adjustable Protection, Bundle of 15

PN: INNERLAMP

12 x 12 x 46 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$64.94 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 12
Boxes - Corrugated

12x12x40 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 121240

12 x 12 x 40 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$55.61 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items. Made from ECT-32 kraft corrugated with full overlap bottoms for maximum stacking strength. Sold as bundle of 15–pair with T12448OUTER to complete your shipping solution.
Boxes - Corrugated

12x4x48" Telescoping Inner Boxes ECT-32 Kraft - Adjustable Design, Bundle of 15

PN: T12448INNER

12 x 4 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$94.56 / BUNDLE
IN STOCK Heavy-duty 4x4x48 corrugated boxes manufactured from ECT-32 kraft material deliver reliable protection for tall, narrow items. End-load design enables fast insertion and sealing, reducing packing labor. Sold in convenient 25-box bundles to maximize volume savings for warehouse managers and fulfillment operations.
Boxes - Corrugated

4x4x48 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 4448

4 x 4 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$55.41 / 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.