Mailing Tubes - 4x18, Kraft, With Caps, 15/Case
$42.48
/ case of 15$2.83 per box
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
4" × 18"
Board / material
0.08 Thick Spiral Wound Fibreboard
Color
Kraft
Freight class
Class 175
Specifications
| Inside dimensions | 4" × 18" (L × W) |
|---|---|
| Board / material | 0.08 Thick Spiral Wound Fibreboard |
| Color | Kraft |
| Sold as | Case of 15 |
| Order in multiples of | 1 |
| Case weight | 9.08 lb |
| Outer carton (shipping) | 23.5 × 16.5 × 16.5 in |
| LTL freight class | Class 175 |
| GTIN | 841436022866 |
| SKU | P4018K |
About this item
SKU P4018K — 4" × 18", 0.08 Thick Spiral Wound Fibreboard, Kraft. Sold as a case of 15, shipped from US warehouses.
The 4x18 Kraft Mailing Tubes with Caps - Secure Document Shipping is an kraft mailing tube for posters, prints, plans, maps, labels, banners, and other rolled documents. Listed specs include size 4" x 18"; kraft material; case of 15. The tube format keeps rolled items separated from flat cartons and square boxes during mailing or storage.
Common questions
Will the caps stay on during shipment?
Yes. The white end caps snap securely into place with sufficient grip to prevent accidental pop-off during standard carrier handling and transit. They provide reliable closure for mail and parcel shipments.
What's the difference between usable space and actual tube length?
Usable space (18") represents the interior cavity where your contents fit. Actual tube length is longer to accommodate the depth of the snap-fit end caps, ensuring secure sealing without compression of materials inside.
Can I reuse these tubes?
Yes. The 3-ply spiral wound construction is durable enough for multiple uses. Many customers refill and re-mail these tubes, reducing packaging costs over time while maintaining structural integrity.
Are replacement caps available separately?
Yes. Additional 4" end caps are available for purchase separately (SKU: PMTCAP4-C820), allowing you to extend the life of tubes or stock caps as needed for inventory management.
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.