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
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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 12x15.5 50% PCR Non-Perforated Lip Poly Mailers 500/Case
Envelopes & Mailers

12x15.5 50% PCR Non-Perforated Lip Poly Mailers 500/Case

PN: B12155N

15.5 x 12 in 500 PER CASE
$105.79 / CASE
IN STOCK 12x15.5 50% PCR Perforated Lip Poly Mailers 500/Case
Envelopes & Mailers

12x15.5 50% PCR Perforated Lip Poly Mailers 500/Case

PN: B12155

15.5 x 12 in 500 PER CASE
$105.79 / CASE
IN STOCK 10x13 50% PCR Non-Perforated Lip Poly Mailers 1000/Case
Envelopes & Mailers

10x13 50% PCR Non-Perforated Lip Poly Mailers 1000/Case

PN: B1013N

13 x 10 in 1000 PER CASE
$155.45 / CASE
IN STOCK 6x9 2.5 Mil Non-Perforated Lip Poly Mailers
Envelopes & Mailers

6x9 2.5 Mil Non-Perforated Lip Poly Mailers

PN: B5150

9 x 6 in 2.5 Mil
$42.13 / CASE
IN STOCK 4.5x6 Red Packing List Enclosed Envelopes 1000/Case
Packing List Envelopes

4.5x6 Red Packing List Enclosed Envelopes 1000/Case

PN: PL487

4.5 x 6 in 1000 PER CASE
$51.43 / CASE
IN STOCK 10x13 50% PCR Perforated Lip Poly Mailers 1000/Case
Envelopes & Mailers

10x13 50% PCR Perforated Lip Poly Mailers 1000/Case

PN: B1013

13 x 10 in 1000 PER CASE
$161.28 / CASE
IN STOCK 4x4x4 Kraft Gift Boxes 100/Case
Chipboard Cartons

4x4x4 Kraft Gift Boxes 100/Case

PN: GB444K

4 x 4 x 4 in 100 PER CASE
$39.68 / CASE
IN STOCK Ship blueprints, posters, and documents safely with our 4x48 white mailing tubes. Heavy-duty 3-ply spiral wound fibreboard with included snap-lock end caps prevents shifting during transit. Each case contains 15 reusable, recyclable tubes–the cost-effective solution for high-volume mailroom operations.
Mailing Tubes

4x48 White Spiral Wound Mailing Tubes with Caps 15/Case

PN: P4048W

4 x 48 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$96.33 / CASE
IN STOCK Protect documents, posters, and blueprints with our 4x42 white mailing tubes featuring secure snap-on end caps that won't pop off during shipment. Built with 3-ply spiral wound fibreboard construction for durability, these tube mailers come 15 per case and are fully reusable and recyclable–ideal for mailroom efficiency and cost-conscious shippers.
Mailing Tubes

4x42 White Spiral Wound Mailing Tubes with Caps 15-Pack

PN: P4042W

4 x 42 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$74.10 / CASE
IN STOCK Ship documents, posters, and blueprints safely with these 4x36 white spiral wound mailing tubes. Each case includes 15 tubes with white end caps that snap securely in place–no pop-offs during transit. Heavy-duty 3-ply fibreboard construction delivers professional protection at competitive bulk pricing.
Mailing Tubes

4x36 White Spiral Wound Mailing Tubes with Caps 15/Case

PN: P4036W

4 x 36 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$65.12 / CASE
IN STOCK Ship posters, blueprints, and documents safely with these 4x30 white spiral wound mailing tubes. Each case includes 15 tubes with secure snap-on end caps that won't pop off during transit. Heavy-duty 0.08
Mailing Tubes

4x30 White Spiral Wound Mailing Tubes with Caps 15/Case

PN: P4030W

4 x 30 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$59.64 / CASE
IN STOCK Professional-grade 4x26 white mailing tubes with snap-lock end caps prevent content damage during shipping. 3-ply spiral wound fibreboard construction delivers strength and reusability. Order by the case of 15 tubes–ideal for architecture firms, print shops, and mailroom operations.
Mailing Tubes

4x26 White Spiral Wound Mailing Tubes with Caps 15/Case

PN: P4026W

4 x 26 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$68.31 / CASE
IN STOCK Professional-grade 4x24 white mailing tubes engineered for secure document and blueprint shipping. Three-ply spiral wound fibreboard construction with included snap-lock end caps that won't pop off during transit. Sold as case of 15 tubes–durable, reusable, and fully recyclable.
Mailing Tubes

4x24 White Spiral Wound Mailing Tubes with Caps 15/Case

PN: P4024W

4 x 24 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$53.09 / CASE
IN STOCK Professional-grade 4x18 white mailing tubes designed for shipping blueprints, posters, and rolled documents. Features 3-ply spiral wound fibreboard construction (0.08
Mailing Tubes

4x18 White Mailing Tubes with Caps 15/Case

PN: P4018W

4 x 18 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$46.54 / CASE
IN STOCK Ship blueprints, posters, and documents safely with these 4
Mailing Tubes

4x12 White Mailing Tubes with Caps 15/Case

PN: P4012W

4 x 12 in 0.08 Thick Spiral Wound Fibreboard 15 PER CASE
$38.27 / CASE
IN STOCK Protect and ship documents, posters, and blueprints with confidence using these 3x48 white spiral wound mailing tubes. Each case includes 24 tubes with included white end caps that snap securely in place–no pop-offs during shipment. Reusable, recyclable, and built for reliability with 3-ply fibreboard construction.
Mailing Tubes

3x48 White Spiral Wound Mailing Tubes with Caps 24-Pack

PN: P3048W

3 x 48 in 0.08 Thick Spiral Wound Fibreboard 24 PER CASE
$91.69 / 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 ->