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 10x13x2
Envelopes & Mailers

10x13x2" Kraft Expandable Self-Seal Envelopes - No Moisture Needed, Case of 100

PN: EN1065

10 x 13 x 2 in 40 lb. Paper Stock 100 PER CASE
$96.20 / CASE
IN STOCK Speed up your mailroom with these 12 x 10 x 2
Envelopes & Mailers

12 x 10 x 2" Kraft Expandable Self-Seal Envelopes - No Moisture Required, Case of 100

PN: EN1066

12 x 10 x 2 in 40 lb. Paper Stock 100 PER CASE
$94.16 / CASE
IN STOCK Skip the moisture–just peel and seal. These 9.5
Envelopes & Mailers

9.5x13x2 Kraft Expandable Self-Seal Envelopes - No Moisture Needed, Case of 250

PN: EN1073

9 1/2 x 13 x 2 in 40 lb. Paper Stock 250 PER CASE
$210.94 / CASE
IN STOCK Speed up your mailroom operations with these 9x12x2 kraft expandable self-seal envelopes that require zero moisture–just peel and seal. Made from durable 40 lb. paper stock with tear-strip protection, these 250-count cases deliver cost-efficient bulk shipping without compromising durability. End-loading design expands to accommodate bulky items safely.
Envelopes & Mailers

9x12x2 Kraft Expandable Self-Seal Envelopes - No Moisture Needed, Case of 250

PN: EN1072

9 x 12 x 2 in 40 lb. Paper Stock 250 PER CASE
$201.31 / CASE
IN STOCK Speed up your mailroom operations with these 11x5x2
Envelopes & Mailers

11x5x2" Kraft Expandable Self-Seal Envelopes - Fast Peel & Seal, Case of 100

PN: EN1064

11 x 5 x 2 in 40 lb. Paper Stock 100 PER CASE
$64.10 / CASE
IN STOCK Stand out with vibrant pink self-seal poly mailers that protect products and impress customers. Each 14.5x19
Envelopes & Mailers

14.5x19 Pink Self-Seal Poly Mailers 2.5 Mil - 100/Case

PN: CPM1419P

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade 14.5x19
Envelopes & Mailers

14.5x19" Yellow Self-Seal Poly Mailers 2.5 Mil - 100/Case

PN: CPM1419Y

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade red poly mailers designed for e-commerce brands that demand durability. These 14.5x19 self-seal mailing bags feature 2.5 mil polyethylene construction with waterproof, puncture, and tear-resistant protection. Silver inner lining accepts labels and stamps for premium brand presentation.
Envelopes & Mailers

14.5x19 Red Poly Mailers - Self-Seal Waterproof, 2.5 Mil, Case/100

PN: CPM1419R

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade blue poly mailers with self-seal closure and silver interior lining. 19
Envelopes & Mailers

19 x 14.5" Blue Self-Seal Poly Mailers 2.5 Mil - Case of 100

PN: CPM1419BL

19 x 14.5 in 2.5 Mil Polyethylene 100 PER CASE
$51.94 / CASE
IN STOCK Professional-grade black poly mailers with integrated self-seal closure keep your shipments secure and protected. Each 14.5x19
Envelopes & Mailers

14.5x19" Black Poly Mailers 2.5 Mil Self-Seal - Case of 100

PN: CPM1419BK

14 1/2 x 19 in 2.5 Mil Polyethylene 100 PER CASE
$56.09 / CASE
IN STOCK Professional-grade 12x15.5
Envelopes & Mailers

Poly Mailers - 12x15.5, Pink, 2.5 Mil, Self-Seal, 100/Case

PN: CPM1215P

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$35.24 / CASE
IN STOCK Professional 12x15.5
Envelopes & Mailers

Poly Mailers - 12x15.5, Yellow, 2.5 Mil, Self-Seal, 100/Case

PN: CPM1215Y

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$35.24 / CASE
IN STOCK Professional red poly mailers combine eye-catching color with industrial durability. Each 12x15.5
Envelopes & Mailers

Poly Mailers - 12x15.5, Red, 2.5 Mil, Self-Seal, 100/Case

PN: CPM1215R

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK Protect your shipments with our 12x15.5
Envelopes & Mailers

Poly Mailers - 12x15.5, Blue, Self-Seal, 100/Case

PN: CPM1215BL

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK Professional 12x15.5
Envelopes & Mailers

Poly Mailers - 12x15.5, Black, 2.5 Mil, Self-Seal, 100/Case

PN: CPM1215BK

12 x 15 1/2 in 2.5 Mil Polyethylene 100 PER CASE
$38.06 / CASE
IN STOCK 10x13 Pink Self-Seal Poly Mailers 2.5 Mil - Puncture Resistant, Case of 100
Envelopes & Mailers

Poly Mailers - 10x13, Pink, 2.5 Mil, Self-Seal, 100/Case

PN: CPM1013P

10 x 13 in 2.5 Mil Polyethylene 100 PER CASE
$25.97 / 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.