5x5x18 Kraft Square Mailing Tubes 25/Bundle
$36.37
/ bundle of 25$1.45 per tube
Request bulk pricing
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
5" × 5" × 18"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 5" × 5" × 18" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Physical units per order increment | 25 (one bundle) |
| Bundle weight | 10.2 lb |
| Outer carton (shipping) | 31.25 × 27.0 × 3.25 in |
| LTL freight class | Class 125 |
| GTIN | 848109043456 |
| SKU | M5518K |
About this item
SKU M5518K — 5" × 5" × 18", ECT-32-B Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
The 5x5x18" Kraft Square Mailing Tubes - No-Roll Design is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 5" x 5" x 18"; kraft material; bundle of 25. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.
Common questions
Why choose square tubes over round mailing tubes?
Square tubes eliminate rolling during packing and shipping, reducing product damage and packing time. They stack efficiently on pallets, maximize carton space utilization, and present a more professional appearance. The flat square profile also prevents items from shifting during transit.
How quickly can these tubes be assembled?
These one-piece tubes fold together in seconds without requiring tape, glue, or fasteners. Your team can assemble dozens per minute, dramatically reducing labor costs compared to traditional multi-piece tube construction.
What shipping standards do these tubes meet?
Constructed from ECT-32-B (32 ECT) kraft corrugated material, these tubes meet ASTM D5169 standards and provide excellent protection for items requiring secure, compliant shipping across domestic and international carriers.
Are these tubes suitable for branding and custom printing?
Yes. The natural kraft exterior accepts custom printing, logos, and branding. The smooth surface and professional appearance make these ideal for premium product packaging and branded shipping experiences.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.