Reliable 4x18 kraft tubes with included white snap-on end caps prevent contents from shifting during shipment. Heavy-duty 3-ply spiral wound fibreboard (0.08" thick) handles documents, blueprints, and posters with confidence. Buy by the case of 15 and cut your per-unit costs.
In Stock SKU: P4018K

4x18 Kraft Mailing Tubes with Caps - Secure Document Shipping, Case of 15

4x18 Kraft Mailing Tubes with Caps - Secure Document Shipping, Case of 15. Use this item for rolled documents, posters, plans, prints, or long narrow items that fit the listed tube diameter, length, and closure style. Listed specs include size 4 x 18 in; material kraft; sold as Case of 15. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

$36.13 / CASE (15 PER CASE)
Order timing and shipping options show at checkout
Delivery shown at checkout
Confirm this specSKU P4018K

4x18 Kraft Mailing Tubes with Caps - Secure Document Shipping, Case of 15: compare by size, material, fit, pack count, and case quantity. Confirm SKU, sold-as unit, price, availability, and checkout delivery before ordering.

Size
4 x 18 in
Material
0.08 Thick Spiral Wound Fibreboard
Color
Kraft
Sold as
CASE (15 PER CASE)
Freight class
175
Material
0.08" Thick 3-Ply Spiral Wound Fibreboard
Inside Diameter
4 inches
Usable Length
18 inches
Good fit for

Good fit for rolled documents, posters, plans, prints, or long narrow items that fit the listed tube diameter, length, and closure style. Confirm usable length, tube diameter, cap or crimped-end style, wall type if listed, and case quantity.

Check before ordering

Confirm size, material, fit, sold-as quantity, SKU, price, availability, and checkout delivery before ordering.

Buying a larger quantity, matching this to an existing SKU, or setting up a repeat order?

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Secure checkout | Delivery shown at checkout |

Best For

Good fit for rolled documents, posters, plans, prints, or long narrow items that fit the listed tube diameter, length, and closure style. Confirm usable length, tube diameter, cap or crimped-end style, wall type if listed, and case quantity.

How to Choose the Right Packaging

The buying decision should be based on the exact size, material, fit, pack count, and case quantity, not the category name alone. Use the current product page as the source of truth for SKU, variant, price, availability, sold-as unit, and checkout delivery.

Specs at a Glance

Material0.08" Thick 3-Ply Spiral Wound Fibreboard
Inside Diameter4 inches
Usable Length18 inches
End CapsWhite snap-fit caps included
RecyclableYes
Common Use Cases
  • Shipping or storing rolled posters, drawings, plans, prints, labels, maps, or long narrow parts.
  • Matching tube diameter, length, closure style, and case quantity to the item being shipped.
  • Reordering by exact product link, SKU, or sold-as quantity.
  • Adding the item to a mixed-SKU or recurring supply request when quantity, delivery ZIP code, or timing matters.
What You'll Receive
  • This listing is sold as Case of 15. Check the current product page for variant details, price, availability, and pack count before checkout.
Shipping & Packaging

Delivery options and timing are shown at checkout based on item and destination. For larger quantities, freight-sensitive items, mixed-SKU needs, or recurring supply, send the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.

Frequently Bought Together

Related supplies

Frequently Asked Questions

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.

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.

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.

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.

Technical Specifications

Inside Diameter4 inches
Usable Length18 inches
End CapsWhite snap-fit caps included
RecyclableYes
Color Kraft
Strength / Material 0.08 Thick Spiral Wound Fibreboard
Dimensions (Internal) 4"" × 18"" (L × W × H)

Product Downloads

Shipping Information

Outer Carton Dimensions

23.5" × 16.5" × 16.5" (L × W × D)

Unit of Measure

CASE

Qty Per Shipping Unit

15 PER CASE

LTL Freight Class

Class 175

Delivery Method

Shown at checkout

ORDER SUPPORT

Product Support

We aim to show product specs, case quantities, and availability clearly. Contact support if an item does not match the listed product details.

Secure checkout LTL freight available on case/skid orders

Buyer guides

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