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-44 single-wall kraft corrugated boxes in 36x5x42 dimensions–the industry standard for high-volume fulfillment operations. Ships and stores flat to maximize warehouse efficiency. Bundle of 5 reduces per-unit costs and freight overhead.
Boxes - Corrugated

36x5x42 ECT-44 Kraft Side Loading Boxes - Bundle of 5

PN: 36542FOL

36 x 5 x 42 in ECT-44 Single Wall Corrugated 5 PER BUNDLE
$44.39 / BUNDLE
IN STOCK Heavy-duty 30x6x40 side loading boxes manufactured from ECT-44 kraft corrugated with full overlap flaps for maximum edge protection. End-opening design streamlines product insertion and reduces labor time. Ships flat in bundles of 10 to minimize storage footprint and freight costs.
Boxes - Corrugated

30x6x40 ECT-44 Kraft Side Loading Boxes - Full Overlap Protection, Bundle of 10

PN: HD30640FOL

30 x 6 x 40 in ECT-44 Corrugated 10 PER BUNDLE
$129.01 / BUNDLE
IN STOCK Industrial-grade 26 x 26 x 12
Boxes - Corrugated

26x26x12 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping, Bundle of 10

PN: HD262612DW

26 x 26 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$147.18 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer cartons designed for tall and irregularly shaped items. ECT-32 kraft corrugated with full overlap bottom for maximum stacking strength. Sold as bundle of 25–pair with T4448INNER for complete packaging solution.
Boxes - Corrugated

4.5x4.5x48 Kraft Telescoping Outer Box - ECT-32 Corrugated, 25-Pack

PN: T4448OUTER

4 1/2 x 4 1/2 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$67.60 / BUNDLE
IN STOCK Ship and store flat without sacrificing strength. These 42x11x6 ECT-32 kraft corrugated boxes deliver industry-standard durability in a bundle of 20 units. Perfect for high-volume fulfillment operations seeking to maximize freight efficiency and warehouse space savings.
Boxes - Corrugated

42x11x6 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 42116

42 x 11 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$100.90 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes built for serious volume. These 29x24x24 shipping cartons deliver industry-standard stacking strength and collapse-resistant performance. Ships flat in bundles of 10 to maximize your warehouse footprint and cut freight costs.
Boxes - Corrugated

29x24x24 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 292424

29 x 24 x 24 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$136.54 / BUNDLE
IN STOCK Heavy-duty ECT-32 corrugated boxes sized 5
Boxes - Corrugated

5x5x48 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 5548

5 x 5 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$95.98 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 36
Boxes - Corrugated

36x18x6" ECT-32 Kraft Corrugated Boxes - Shallow Depth Shipping, Bundle of 15

PN: 36186

36 x 18 x 6 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$95.68 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 30
Boxes - Corrugated

30x24x20 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 302420

30 x 24 x 20 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$136.63 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes designed for tall and irregularly shaped items up to 48 inches. ECT-32 kraft corrugated with reinforced FOL bottom delivers reliable protection and compression strength. Sold as a 25-pack bundle–pair with T6648OUTER outer cartons to complete your shipping set.
Boxes - Corrugated

6x6x48 ECT-32 Kraft Telescoping Inner Boxes - Adjustable Tall Item Packaging, 25-Pack

PN: T6648INNER

6 x 6 x 48 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$87.35 / BUNDLE
IN STOCK Adjustable 48x6x38
Boxes - Corrugated

48x6x38" ECT-44 Telescoping Boxes Heavy-Duty Kraft - Bundle of 10

PN: T48638INHD

48 x 6 x 38 in ECT-44 Corrugated 10 PER BUNDLE
$189.42 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 48x6x6 kraft corrugated boxes featuring wide lengthwise openings for fast packing. Built from durable ECT-32 single-wall corrugated material and sold in bundles of 25, these long cartons reduce per-unit costs while maintaining structural integrity. Perfect for wine bottles, umbrellas, carpet rolls, and specialty items.
Boxes - Corrugated

48x6x6 ECT-32 Kraft Corrugated Long Boxes - Easy Packing, 25 Bundle

PN: 4866

48 x 6 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$106.17 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes in 36x18x18
Boxes - Corrugated

36x18x18 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 361818

36 x 18 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$85.98 / BUNDLE
IN STOCK Industrial-grade 36x18x12 corrugated shipping boxes built from ECT-32 kraft material for dependable strength and compression resistance. Each bundle contains 15 boxes–the standard pack size for warehouse managers and fulfillment operations. Recyclable, cost-effective, and engineered for efficient pallet loading.
Boxes - Corrugated

36x18x12 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 361812

36 x 18 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$71.51 / BUNDLE
IN STOCK Heavy-duty ECT-44 multi-depth corrugated boxes (30x24x24
Boxes - Corrugated

30x24x24 ECT-44 Heavy-Duty Multi-Depth Corrugated Boxes - Bundle of 10

PN: MDHD302424

30 x 24 x 24 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$117.73 / BUNDLE
IN STOCK Score multiple depths without a carton sizer–fold these 30x24x12 ECT-32 kraft corrugated boxes to your exact height requirements. Eliminate SKU bloat, cut parcel shipping costs, and standardize on one versatile box. Sold in bundles of 15.
Boxes - Corrugated

30x24x12 Multi-Depth Corrugated Box ECT-32 Kraft - Adjustable, Bundle 15

PN: MD302412

30 x 24 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$111.30 / 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.