In stock SKU M3312GTIN 841436089135

3x3x12" White Corrugated Square Mailing Tubes - 25 Pack

Stop wasting time packing round tubes that roll in transit. These 3x3x12" white square mailing tubes ship flat and assemble in seconds without tape or glue. ECT-32 corrugated construction delivers durability while the stackable square design maximizes warehouse space and reduces shipping chaos.
$18.48 / bundle of 25$0.74 per mailer
= 25 mailers · Total $18.48
Request bulk pricing

Ships from the nearest of 5 US warehouses · freight calculated at checkout

30-day returns on stock items · Return policy

Inside dimensions 3" × 3" × 12"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions3" × 3" × 12" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 25
Order in multiples of25
Bundle weight4.6 lb
Outer carton (shipping)21.25 × 17.0 × 3.0 in
LTL freight classClass 125
GTIN841436089135
SKUM3312

About this item

SKU M3312 — 3" × 3" × 12", ECT-32-B Corrugated, White. Sold as a bundle of 25, shipped from US warehouses.

3x3x12" White Corrugated Square Mailing Tubes - 25 Pack. Use this item for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Listed specs include size 3 x 3 x 12 in; material corrugated; sold as Bundle 25. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

Why choose square tubes instead of round mailing tubes?
Square tubes eliminate rolling and shifting during shipping, making them stackable and more efficient to pack. They also maximize shelf space, reduce packing time, and lower damage rates, particularly valuable for high-volume fulfillment operations.
How quickly do these tubes assemble?
These one-piece tubes fold together in seconds without tape, glue, or additional tools. Staff can assemble hundreds per hour, significantly accelerating packing workflows compared to traditional tube assembly methods.
What products fit in a 3 x 3 x 12" tube?
These tubes accommodate rolled posters, prints, blueprints, documents, fabric swatches, cosmetic samples, and cylindrical items up to 3 inches in diameter and 12 inches in length. They're ideal for items requiring protection without excessive bulk.
Are these tubes shipping-compliant and environmentally friendly?
Yes. ECT-32-B corrugated construction meets USPS, UPS, and FedEx specifications for dimensional weight pricing and handling standards. The tubes are 100% recyclable, supporting sustainability goals while meeting carrier requirements.

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.

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