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 2.5 mil polyethylene self-seal mailers designed for e-commerce brands shipping products that demand protection. 24
Envelopes & Mailers

24x19 Poly Mailers - Self-Seal, 100-Pack

PN: B877100PK

24 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$68.12 / CASE
IN STOCK Professional-grade 14.5x19
Envelopes & Mailers

14.5x19 Poly Mailers - White Self-Seal, 100-Pack

PN: B876100PK

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$46.07 / CASE
IN STOCK Professional 14x17
Envelopes & Mailers

Poly Mailers - 14x17, 2.5 Mil, Self-Seal, 100-Pack

PN: B879100PK

14 x 17 in 2.5 Mil Polyethylene 100 PER CASE
$39.25 / CASE
IN STOCK Professional-grade self-seal poly mailers designed for e-commerce brands who demand durability and presentation. Each 12x15.5
Envelopes & Mailers

12x15.5 Poly Mailers - Self-Seal, 100-Pack

PN: B875100PK

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$27.51 / CASE
IN STOCK Protect your shipments with these premium 12x15.5
Envelopes & Mailers

12x15.5 Poly Mailers - Self-Seal, 50-Pack

PN: B87550PK

12 x 15 1/2 in 2.5 Mil Polyethylene 50 PER CASE
$17.47 / CASE
IN STOCK 10x13 White Poly Mailers 2.5 Mil Self-Seal Tear Strip - 100 Pack
Envelopes & Mailers

10x13 Poly Mailers - White Self-Seal, 100-Pack

PN: B874100PK

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$20.38 / CASE
IN STOCK Professional-grade 9x12
Envelopes & Mailers

9x12 Poly Mailers - Self-Seal, 100-Pack

PN: B873100PK

9 x 12 in 2.5 Mil Polyethylene 100 PER CASE
$21.59 / CASE
IN STOCK Protect shipments with puncture and water-resistant 7.5x10.5
Envelopes & Mailers

7.5x10.5 Poly Mailers - Self-Seal, 100-Pack

PN: B872100PK

7 1/2 x 10 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$18.64 / CASE
IN STOCK Premium 6x9
Envelopes & Mailers

6x9 Poly Mailers - Self-Seal, 100-Pack

PN: B871100PK

6 x 9 in 2.5 Mil Polyethylene 100 PER CASE
$16.68 / CASE
IN STOCK Ship with confidence using these 20x14.5 nylon reinforced mailers designed for e-commerce brands. Heavy-duty nylon fibers deliver superior tear resistance without the weight penalty–perfect for cost-effective shipping. Each case includes 250 mailers ready to tape or staple.
Envelopes & Mailers

20x14.5 Heavy-Duty Nylon Reinforced Mailers - Tear Resistant, Case of 250

PN: B890

20 x 14.5 in Heavy-Duty Nylon Fibers 250 PER CASE
$307.66 / CASE
IN STOCK Ship with confidence using our 19x12.5 nylon reinforced mailers–engineered for tear resistance and durability without added weight. Heavy-duty nylon fiber construction protects contents while reducing shipping costs. Case of 250 ready to seal and ship.
Envelopes & Mailers

19x12.5 Nylon Reinforced Mailers #6 Tear-Resistant - Case of 250

PN: B889

19 x 12.5 in Heavy-Duty Nylon Fibers 250 PER CASE
$247.90 / CASE
IN STOCK Heavy-duty nylon reinforced mailers engineered for e-commerce brands shipping non-fragile items without extra cushioning. These 16
Envelopes & Mailers

16x10.5 Nylon Reinforced Mailers #5 - Tear Resistant, Case of 500

PN: B888

16 x 10.5 in Heavy-Duty Nylon Fibers 500 PER CASE
$382.67 / CASE
IN STOCK Heavy-duty nylon reinforced #4 mailers (9.5x14.25
Envelopes & Mailers

9.5x14.25" #4 Nylon Reinforced Mailers - Tear Resistant, 500/Case

PN: B887

9 1/2 x 14 1/4 in Heavy-Duty Nylon Fibers 500 PER CASE
$334.83 / CASE
IN STOCK Ship with confidence using these heavy-duty nylon reinforced mailers sized 8.5
Envelopes & Mailers

8.5 x 14.5" #3 Nylon Reinforced Mailers - Tear Resistant, Case of 500

PN: B886

8 1/2 x 14 1/2 in Heavy-Duty Nylon Fibers 500 PER CASE
$293.08 / CASE
IN STOCK Professional-grade nylon reinforced mailers engineered for e-commerce brands shipping non-fragile items. 12
Envelopes & Mailers

12x8.75 Nylon Reinforced Mailers #2 - Tear Resistant, 1000/Case

PN: B885

12 x 8.75 in Heavy-Duty Nylon Fibers 1000 PER CASE
$506.00 / CASE
IN STOCK Professional-grade nylon reinforced mailers designed for e-commerce brands shipping lightweight to medium items. Heavy-duty nylon fibers resist tears and punctures during transit, while lightweight construction reduces shipping costs. Tape or staple closure for flexible sealing options.
Envelopes & Mailers

12 x 7 1/4" #1 Nylon Reinforced Mailers - Tear Resistant, Case of 1000

PN: B884

12 x 7 1/4 in Heavy-Duty Nylon Fibers 1000 PER CASE
$414.58 / CASE

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.