Boxes & Mailers

SELECTION EXPERT ADVICE

Wall Strength & Load Capacity
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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
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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
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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

3,094 corrugated boxes, literature mailers and mailing tubes from 2 to 36 inches, mostly ECT-32 kraft and white, sold in bundles of 10 to 50. Each listing shows inside dimensions, board grade and bundle count so you can match a carton to the part you ship. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

IN STOCK Protect fragile shipments with professional-grade bubble lined poly mailers featuring 3/16" air bubble cushioning and convenient peel-and-seal closure. These 14.25x20" white polyethylene mailers are moisture, tear, and tamper-resistant–perfect for e-commerce packers handling delicate items. Case of 50 provides reliable, cost-effective protection per shipment.
Envelopes & Mailers

14.25x20 #7 White Self-Seal Bubble Mailers 50/Case B837

PN: B837

14 1/4 x 20 in 2 Mil Polyethylene / 3/16" Bubble Lining 50 PER CASE
$46.42 / CASE
IN STOCK Professional-grade 19" x 12.5" poly bubble mailers engineered for e-commerce shippers moving fragile goods. 2-mil polyethylene exterior with 3/16" bubble lining delivers reliable shock protection, while the peel-and-seal closure ensures tamper-evident, moisture-resistant delivery. Case of 50 mailers–ready to pack today.
Envelopes & Mailers

19x12.5 #6 Self-Seal Bubble Mailers 50/Case

PN: B839

19 x 12.5 in 2 Mil Polyethylene / 3/16" Bubble Lining 50 PER CASE
$39.51 / CASE
IN STOCK 10.5x16 Bubble Lined Poly Mailers - Tear-Proof Self-Seal, Case of 100
Envelopes & Mailers

10.5x16 #5 Self-Seal Bubble Mailers 100/Case

PN: B836

10 1/2 x 16 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$54.69 / CASE
IN STOCK Protect fragile items with confidence using these 9.5x14.5 bubble lined poly mailers. Each mailer features 2 mil polyethylene exterior and 3/16" bubble cushioning interior, plus a reliable peel-and-seal closure that saves packing time. Sold as case of 100–the cost-effective choice for high-volume shippers.
Envelopes & Mailers

9.5x14.5 Self-Seal Bubble Lined Poly Mailers 100/Case

PN: B834

9 1/2 x 14 1/2 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$47.18 / CASE
IN STOCK Professional-grade bubble lined poly mailers with 3/16" cushioning protect fragile goods during transit. Peel-and-seal closure, moisture and tear resistant, white polyethylene construction. Ship 100 mailers per case at wholesale pricing.
Envelopes & Mailers

8.5x14.5 #3 White Self-Seal Bubble Mailers 100/Case

PN: B838

8 1/2 x 14 1/2 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$47.70 / CASE
IN STOCK Protect fragile goods with durable 8.5x12" bubble lined poly mailers featuring 3/16" bubble cushioning and a quick peel-and-seal closure. Each case contains 100 white polyethylene envelopes that resist moisture, tears, and tampering–ideal for e-commerce packers and frequent shippers who demand reliable shock protection without the hassle.
Envelopes & Mailers

8.5x12 #2 Self-Seal Bubble Mailers 100/Case

PN: B833

8 1/2 x 12 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$39.45 / CASE
IN STOCK Protect fragile items with these 12 x 7.25" self-seal poly bubble mailers featuring 3/16" bubble cushioning and 2-mil polyethylene construction. Moisture, tear, and tamper resistant with convenient peel-and-seal closure. Ships fast in cases of 100–ideal for e-commerce packers and high-volume shippers.
Envelopes & Mailers

12x7.25 #1 Self-Seal Bubble Mailers 100/Case

PN: B832

12 x 7.25 in 2 Mil Polyethylene / 3/16" Bubble Lining 100 PER CASE
$35.89 / CASE
IN STOCK Protect fragile shipments with our 7.25" x 8" white poly bubble mailers. Each case includes 200 self-sealing, tear-proof mailers with integrated bubble cushioning inside. Moisture, tear, and tamper resistant–ideal for e-commerce packers shipping lightweight, delicate items.
Envelopes & Mailers

7.25x8 White Self-Seal Bubble Lined Poly Mailers 200/Case

PN: B827

7.25 x 8 in Polyethylene 200 PER CASE
$79.16 / CASE
IN STOCK Ship fragile items safely with these 6.5x10 bubble lined poly mailers featuring 3/16" protective bubble cushioning and 2 mil polyethylene construction. Peel-and-seal closure, moisture- and tear-resistant design. Case of 250 mailers–ready to pack and ship.
Envelopes & Mailers

6.5x10 White Self-Seal Bubble-Lined Poly Padded Mailers 250/Case

PN: B831

6 1/2 x 10 in 2 Mil Polyethylene / 3/16" Bubble Lining 250 PER CASE
$70.58 / CASE
IN STOCK 10x5 Bubble Lined Poly Mailers 2 Mil White - 250 Case Pack
Envelopes & Mailers

10x5 #00 2 Mil White Self-Seal Bubble Mailers 250/Case

PN: B829

10 x 5 in 2 Mil Polyethylene / 3/16" Bubble Lining 250 PER CASE
$65.87 / CASE
IN STOCK Ship fragile items with confidence using these 8x4 self-seal bubble mailers. Each case contains 500 white polyethylene envelopes with 3/16" bubble lining for superior shock protection. Peel-and-seal closure, moisture-resistant, and UPS-eligible for seamless fulfillment.
Envelopes & Mailers

8x4 #000 White Self-Seal Bubble Mailers 500/Case

PN: B828

8 x 4 in 2 Mil Polyethylene / 3/16" Bubble Lining 500 PER CASE
$105.61 / CASE
IN STOCK Professional black self-seal stayflat mailers sized 17x21" protect documents and photos during shipment without additional stiffeners. Engineered from .028 chipboard with peel-and-seal closure and easy tear strip. Lightweight design reduces freight costs–sold by the case of 100 units.
Envelopes & Mailers

17x21 Black Self-Seal Chipboard Mailers 100/Case

PN: RM1721BK

17 x 21 in .028 Chipboard 100 PER CASE
$209.30 / CASE
IN STOCK Professional white literature mailers sized 12.5" x 5" x 3" with crush-resistant ECT-32-B corrugated construction. Self-sealing tabs ensure secure closure without additional supplies. Sold as a bundle of 50 for bulk e-commerce shipping needs.
Boxes - Mailers

12.5x5x3 White Corrugated Literature Mailers 50/Bundle

PN: ML1253

12 1/2 x 5 x 3 in ECT-32-B Corrugated 50 PER BUNDLE
$66.84 / BUNDLE
IN STOCK Premium white corrugated literature mailers (12 1/8" x 9 1/4" x 6 1/2") with integrated self-seal tabs for secure, professional product shipments. ECT-32-B crush-resistant construction requires zero additional supplies. Sold in bundles of 50 for cost-effective bulk ordering.
Boxes - Mailers

12 1/8 x 9 1/4 x 6 1/2 in White Corrugated Literature Mailers 50-Pack

PN: ML1296

12 1/8 x 9 1/4 x 6 1/2 in ECT-32-B Corrugated 50 PER BUNDLE
$140.52 / BUNDLE
IN STOCK Ship literature, catalogs, and promotional materials with confidence. These 12 1/8x9 1/4x6 white corrugated mailers feature crush-resistant ECT-32-B construction and secure fold-and-tuck tabs for professional presentation every time. Quick assembly, no extra supplies needed–50 mailers per bundle.
Boxes - Mailers

12 1/8 x 9 1/4 x 6 in White Corrugated Literature Mailers Crush Resistant 50/Bundle

PN: M1296

12 1/8 x 9 1/4 x 6 in ECT-32-B Corrugated 50 PER BUNDLE
$163.19 / BUNDLE
IN STOCK Ship marketing materials and literature with confidence using these crush-resistant white corrugated mailers. Quick fold-and-tuck assembly requires no additional supplies, and snug-fitting tabs ensure secure closure. Each bundle includes 50 professionally constructed ECT-32-B literature mailers in the 12 1/8 x 9 1/4 x 5" size.
Boxes - Mailers

12 1/8 x 9 1/4 x 5 in ECT-32-B White Corrugated Literature Mailers 50-Pack

PN: M1295

12 1/8 x 9 1/4 x 5 in ECT-32-B Corrugated 50 PER BUNDLE
$113.17 / 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

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Confirm

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Reorder

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Larger orders

For pallet, recurring, or mixed-SKU orders, send your list and ZIP and get a delivered price by email.

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 finder -> Get a delivered quote for larger orders -> Compare corrugated box types -> View products below ->