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 and ship blueprints, posters, and documents with confidence using these 3
Mailing Tubes

3x42 White Spiral Wound Mailing Tubes with Caps 24/Case

PN: P3042W

3 x 42 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$86.40 / CASE
IN STOCK Ship blueprints, posters, and documents safely with these 3x36 white mailing tubes. Heavy-duty 3-ply spiral wound fibreboard (0.07
Mailing Tubes

3x36 White Spiral Wound 3-Ply Mailing Tubes with Caps 24/Case

PN: P3036W

3 x 36 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$82.03 / CASE
IN STOCK Ship blueprints, posters, and documents safely with these 3x30 white mailing tubes. Each case includes 24 tubes with snap-lock end caps that won't pop off during shipment. Made from durable 3-ply spiral wound fibreboard construction for reliable protection at competitive costs.
Mailing Tubes

3x30 White Spiral Wound 3-Ply Mailing Tubes with Caps 24/Case

PN: P3030W

3 x 30 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$65.39 / CASE
IN STOCK Professional-grade 3x26
Mailing Tubes

3x26 White Spiral Wound Mailing Tubes with Caps 24/Case

PN: P3026W

3 x 26 in 0.08 Thick Spiral Wound Fibreboard 24 PER CASE
$72.16 / CASE
IN STOCK Ship posters, blueprints, and documents securely with these 3x24 white mailing tubes. Heavy-duty 3-ply spiral wound fibreboard construction with included snap-on end caps that won't pop off during transit. Case of 24 reusable, recyclable tubes–the cost-effective solution for your mailroom.
Mailing Tubes

3x24 White Spiral Wound Mailing Tubes with Caps 24/Case

PN: P3024W

3 x 24 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$52.72 / CASE
IN STOCK Ship documents, blueprints, and posters with confidence using these 3
Mailing Tubes

3x20 White Spiral Wound Mailing Tubes with Caps 24-Pack

PN: P3020W

3 x 20 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$60.38 / CASE
IN STOCK Professional-grade 3x18 white mailing tubes engineered for secure document and poster shipping. 3-ply spiral wound fibreboard construction with included snap-fit end caps that stay sealed in transit. Bulk case of 24 tubes–reusable, recyclable, and cost-effective for high-volume mailers.
Mailing Tubes

3x18 White Mailing Tubes with Caps 24/Case

PN: P3018W

3 x 18 in 0.07 Thick Spiral Wound Fibreboard 24 PER CASE
$47.97 / CASE
IN STOCK Ship blueprints, posters, and documents with confidence using these professional-grade 3x15 white mailing tubes. Featuring 3-ply spiral wound fibreboard construction and included snap-on end caps that won't pop off during transit. Each case includes 24 reusable, recyclable tubes–the cost-effective solution for high-volume shipping needs.
Mailing Tubes

3x15 White Mailing Tubes with Caps 24-Pack

PN: P3015W

3 x 15 in 0.06 Thick Spiral Wound Fibreboard 24 PER CASE
$46.46 / CASE
IN STOCK Ship documents, blueprints, and posters safely with our 3x12 white mailing tubes. Each case includes 24 tubes with included white end caps that snap securely in place–no pop-offs during transit. Made from durable 3-ply spiral wound fibreboard and fully recyclable.
Mailing Tubes

3x12 White Mailing Tubes with Caps 24/Case

PN: P3012W

3 x 12 in 0.06 Thick Spiral Wound Fibreboard 24 PER CASE
$45.97 / CASE
IN STOCK Durable 3x9 white spiral wound mailing tubes perfect for architects, blueprint carriers, and document shippers. Includes white end caps that snap securely in place–no pop-offs during shipment. Reusable, recyclable, and sold by the case of 24 for cost-efficient bulk shipping.
Mailing Tubes

3x9 White Mailing Tubes with Caps 24/Case

PN: P3009W

3 x 9 in 0.06 Thick Spiral Wound Fibreboard 24 PER CASE
$39.73 / CASE
IN STOCK Professional-grade 3x6 white mailing tubes designed for architects, engineers, and mailrooms shipping blueprints, documents, and posters. Heavy-duty 3-ply spiral wound fibreboard with included snap-fit white end caps prevents contents from shifting during transit. Case of 24 tubes delivers cost-efficient, reusable packaging that meets shipping compliance standards.
Mailing Tubes

3x6 White Mailing Tubes with Caps 24/Case

PN: P3006W

3 x 6 in 0.06 Thick Spiral Wound Fibreboard 24 PER CASE
$34.76 / CASE
IN STOCK Ship documents, blueprints, and posters with confidence using these 2
Mailing Tubes

2x48 White Spiral Wound Mailing Tubes with Caps 50/Case

PN: P2048W

2 x 48 in 0.08 Thick Spiral Wound Fibreboard 50 PER CASE
$154.08 / CASE
IN STOCK Protect your documents with Packrift's 2x43
Mailing Tubes

2x43 White Spiral Wound Mailing Tubes with Caps 50/Case

PN: P2043W

2 x 43 in 0.08 Thick Spiral Wound Fibreboard 50 PER CASE
$142.17 / CASE
IN STOCK Ship blueprints, posters, and rolled documents with confidence using these 2x36
Mailing Tubes

2x36 White Spiral Wound Mailing Tubes with Caps 50/Case

PN: P2036W

2 x 36 in 0.06 Thick Spiral Wound Fibreboard 50 PER CASE
$108.26 / CASE
IN STOCK Professional-grade 2x30
Mailing Tubes

2x30 White Spiral Wound Mailing Tubes with Caps 50/Case

PN: P2030W

2 x 30 in 0.06 Thick Spiral Wound Fibreboard 50 PER CASE
$97.85 / CASE
IN STOCK Ship posters, blueprints, and documents with confidence using these 2
Mailing Tubes

2x26 White Spiral Wound Mailing Tubes with Caps 50/Case

PN: P2026W

26 x 26 in 0.06 Thick Spiral Wound Fibreboard 50 PER CASE
$95.80 / 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 ->