Custom Triangle Mailing Tubes
Custom triangle mailing tubes are durable, three-sided shipping containers designed to protect documents, posters, and prints during transit. Unlike round tubes, their flat sides prevent rolling and make stacking easier. These tubes can be customized in size, color, and branding to match your shipping needs and enhance your presentation.
Strong corrugated cardboard material
Good protection for shipping
Custom size
Low MOQ
Flat packing for shipping
Custom Triangle Mailing Tubes – Smart, Secure, and Stackable Shipping for E-commerce
Product Overview
Custom triangle mailing tubes are a modern packaging solution designed for safe and efficient shipping of rolled or fragile items. Unlike traditional round tubes, these triangular mailers offer superior stackability, tamper resistance, and a unique look that enhances your brand’s professionalism. Ideal for e-commerce logistics, especially for items like posters, prints, and fresh flower bouquets, these rigid mailing boxes provide a sturdy structure and can be fully customized to suit your product and branding needs.
Keywords: custom triangle mailing tubes, triangular shipping boxes, flower shipping box, e-commerce packaging, poster mailers, triangle tube box
Core Features & Selling Points
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No-Roll Design: Triangle shape prevents movement in transit and eliminates rolling on conveyor belts or shelving.
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E-commerce Ready: Designed for modern logistics systems; easy to stack, label, and handle.
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Durable Structure: Made from strong corrugated cardboard or kraft board, ideal for protecting fragile or bendable contents.
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Perfect for Fresh Flowers: Keeps stems secure and protected, with breathable options for freshness.
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Brand Customization: Print logos, instructions, or designs directly on the box for a clean, professional look.
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Eco-Friendly Options: Made from recyclable materials and available with sustainable finishes.
Application Scenarios
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Flower Shipping: Keeps bouquets upright, protected, and presentation-ready for delivery.
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Poster & Print Mailers: Ships art prints, blueprints, maps, or calendars without risk of rolling or creasing.
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Subscription Boxes: Unique shape helps subscription services stand out.
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E-commerce & Dropshipping: Streamlined design that works with fulfillment centers and postal services.
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Retail Displays: Can double as sleek, branded packaging for in-store presentation.
Customizable Options
Tailor your custom triangle mailing tubes to match your brand’s needs:
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Dimensions: Fully adjustable length, width, and depth to suit product sizes from small bouquets to oversized posters.
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Material: Single-wall or double-wall corrugated board, kraft, or white cardboard.
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Printing Options: CMYK, Pantone, inside/outside print, black-and-white minimalist branding, or full-color artwork.
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Finish Options: Matte or gloss lamination, water-resistant coating, embossed logos, or foil stamping.
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Closures: Self-locking flaps, peel-and-seal adhesive strips, or tuck-in ends.
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Ventilation (for flowers): Perforated holes or air slots for breathability.
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Interior Inserts: Optional flower holders, foam pads, or paper spacers for added protection.
Technical Specifications
| Feature | Specification |
|---|---|
| Material | Corrugated cardboard (single/double wall), kraft board |
| Available Sizes | Fully customizable (commonly: 24″ x 4″ x 4″ x 4″) |
| Printing | Offset, digital, flexo; CMYK & Pantone supported |
| Finish Options | Glossy, matte, soft-touch, water-resistant |
| Closure Mechanism | Tuck flaps, peel-and-seal, tab-lock |
| Ventilation (flowers) | Optional die-cut holes or breathable inserts |
| MOQ | 500 units |
| Lead Time | 10–15 business days after design approval |
| Recyclability | 100% recyclable, biodegradable materials available |
| Shipping Format | Flat-packed or pre-assembled |
Why Choose Triangle Tubes Over Round or Square Mailers?
| Feature | Triangle Mailing Tube | Round Tube | Square Box |
|---|---|---|---|
| Roll Prevention | ✅ Yes | ❌ No | ✅ Yes |
| Stackability | ✅ Excellent | ❌ Poor | ✅ Good |
| E-commerce Compatibility | ✅ Fulfillment Ready | ❌ Needs sorting | ✅ Standard |
| Branding Surface Area | ✅ Wide Panels | ❌ Curved Surface | ✅ Flat Panels |
| Flower Compatibility | ✅ Ideal | ❌ Not Suitable | ❌ Too bulky |
| Material Efficiency | ✅ Efficient Cut | ❌ More waste | ✅ Standard |
SBS C1S
glossy, smooth-coated surface on one side, ideal for high-quality printing.
SBS C2S
glossy, smooth-coated surface on both sides, ideal for high-quality printing.
Brown kraft paper
durable, eco-friendly material made from unbleached wood pulp. Known for its strength and natural, rustic appearance.
CCNB
One side coated and grey colour on another side, eco-friendly, fully recycled.
White kraft paper
strong, durable, and eco-friendly paper made from wood pulp, clean, bright white appearance.
3 layers corrugated paper
1 fluted layer sandwiched between 2 flat linerboards, Ideal for small boxes, retail packaging, and mailers, Perfect for shipping lightweight items like clothing, books, or cosmetics
5 layers corrugated paper
2 fluted layers with 3 flat linerboards. used for international shipping carton packaging, cardboard display stand.
7 layers corrugated paper
3 fluted layers with 4 flat linerboards. Used for crates, pallet boxes, and bulk shipping containers.
Get your artwork files ready for submission by following our Artwork Guidelines and the details provided below. Need assistance with your artwork? We’re here to help! Take advantage of our free design support and mockups to ensure your final product matches your vision perfectly. Just reach out to our packaging experts!
Cut Lines
Indicate the exact path where the packaging will be cut to its final size. These lines are usually solid and are used to trim the material.
Fold Lines (Crease Lines)
Mark where the material will be folded. These lines are often dashed or dotted, guiding where the cardboard or paper will be bent to form the box.
Perforation Lines
These are dotted lines that define where small holes are punched into the material. Perforation lines allow for easy tearing, which is often used for coupons, product access points, or removable parts.
Bleed Area
This is the area extending beyond the cut lines where the artwork or design elements are placed to ensure that there are no white edges when the packaging is cut. Artwork is extended into the bleed area to avoid unwanted gaps in the final product.
Safety Margin
A buffer zone inside the cut lines where no critical text or artwork should be placed. This ensures that important elements aren't cut off during the trimming process.
Registration Marks
Small marks outside the cut lines used to help align the printing plates and ensure colors are printed accurately and consistently.
Get Your Custom Packaging Box Style
Check out our selection of curated retail packaging boxes to find the perfect solution for your business. no matter you need folding carton, rigid box or corrugated box style,you can get all different custom packaging boxes style from Colorfulpack. If you have any questions while browsing our custom box options, our team is ready to assist you.
Get a Quote
Show us the packaging box style you like and tell us the specifications of the custom packaging box you need, such as dimensions, quantity, color printing, surface finishing ect. it would be great if we can have your artwork to check and quote.
Dieline and Artwork
When quotation accepted, we will send you diecut line to prepare your artwork for your custom packaging,make sure the artwork is correct before printing. you can check our artwork guideline before creating your artwork.
Sample Production
After we get your sample payment and artwork, we will start to make your custom packaging box, normally it will take around 7business days to finish it, and we will send it you by express such as Fedex, UPS, DHL ect.
Bulk Order Production
When you get your custom packaging sample, you check the sample by yourself. we will proceed with bulk production when we have your confirmation. any modifications can be made before bulk production, you can tell us if any modifications at this stage.
Shipping
We will deliver your custom packaging boxes to the designated location, you can also ask your freight forwarder to pick up the goods from us.
Looking for a smarter, sleeker way to ship flowers, posters, or lightweight goods?
Request a quote for custom triangle mailing tubes tailored to your brand.
Whether you’re a florist, artist, or e-commerce seller, we’ve got the packaging solution that gets your products delivered safely and in style.
