Best 13 x 13 Box Mailers of 2026

Rebecca Cantu Avatar
Rebecca Cantu
Last Updated: Jan 24, 2026

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These 13 x 13 box mailers are perfect for those looking to send larger items through the mail. With their sturdy construction and durable materials, these mailers provide ample protection for your items during shipping. The boxes are easy to assemble and feature a self-locking design for added security. They are also recyclable, making them an eco-friendly choice for those concerned about the environment. Whether you're sending clothing, books, or other larger items, these box mailers are a reliable and convenient option.

At a Glance: Our Top Picks

ELSINPAPOX 3 Sets Moving Boxes with Dividers and Foam Pouches Cover #TOP 1
ELSINPAPOX 3 Sets Moving Boxes with Dividers and Foam Pouches
ftb score rating icon 9.9
Quality Park Tyvek Large 10x13 Envelopes 100 Pack Cover #TOP 2
Quality Park Tyvek Large 10x13 Envelopes 100 Pack
ftb score rating icon 9.8
KIAECHWU 13x11x2 Shipping Boxes Cover #TOP 3
KIAECHWU 13x11x2 Shipping Boxes
ftb score rating icon 9.6

Top 5 13 x 13 Box Mailers

#TOP 1

ELSINPAPOX 3 Sets Moving Boxes with Dividers and Foam Pouches

ELSINPAPOX
ELSIN-004
Brown
ELSINPAPOX 3 Sets Moving Boxes with Dividers and Foam Pouches Cover
ELSINPAPOX 3 Sets Moving Boxes with Divider Kits,16 x 12 x 13 Inch Glassware Dish Packing Box Kitchen Moving Box Corrugate Dividers with 72 Pcs Foam Pouches,1 Pcs tape rolls with dispenser(Two Layer)

The ELSINPAPOX Moving Box Set offers a complete packing solution with three cartons, cardboard dividers, foam pouches, and a tape roll with dispenser. This all-in-one kit makes packing glassware and fragile items easier and more organized. The compartments are a perfect size to keep your dishes and glassware securely separated. Assembly is straightforward; you just fit the dividers and peel the tape to create sturdy boxes. Made from thick, durable corrugated material, these boxes and dividers provide reliable protection during transport. Plus, the foam pouches add extra cushioning to keep your belongings safe from damage.

What We Like
Complete packing kit
Perfect compartment sizes
Easy assembly process
Durable corrugated material
Protective foam pouches
#TOP 2

Quality Park Tyvek Large 10x13 Envelopes 100 Pack

R1590
White
10 x 13
Quality Park Tyvek Large 10x13 Envelopes 100 Pack Cover
Quality Park Tyvek Envelopes, 100 Pack, Large 10 x 13 Envelopes, First Class Border, Easy-to-Open Tamper Evident Pull Strip, Rip, Puncture & Water Resistant Self Sealing Mailing Envelopes, White

The Quality Park Tyvek Envelopes offer strong protection for your important mail thanks to their durable Tyvek material, which resists tears, punctures, and moisture. This means you can trust them to keep your documents and bulky items safe during rough handling or bad weather. They feature a convenient peel-and-seal closure that’s easy to open with a pull strip, so you won’t have to deal with messy glue or tape, and you’ll know if someone has tampered with your mail. Plus, these lightweight envelopes save you money on postage without sacrificing strength. The First Class border design helps your mail stand out and get priority treatment, making sure your items arrive quickly and noticed.

What We Like
Durable tear and puncture resistance
Easy peel-and-seal closure
Tamper-evident security
Lightweight for postage savings
First Class border for priority
#TOP 3

KIAECHWU 13x11x2 Shipping Boxes

wt-001
White
13x11x2 inches
KIAECHWU 13x11x2 Shipping Boxes Cover
13x11x2 Inches Shipping Boxes Set of 25,White Corrugated Mailing Cardboard Box Literature Mailer for Packing Small Business Moving Storage, E-Commerce Packaging Mailing Boxes Gift Boxes for Presents

The KIAECHWU Shipping Boxes are perfect for your small business or personal needs. Made from lightweight, eco-friendly corrugated cardboard, these boxes are sturdy and reliable for mailing various items like books, jewelry, and gifts. Their smooth white exterior allows for easy customization with stickers or ribbons, making them ideal for special occasions such as holidays and birthdays. Plus, they are designed for quick assembly without the need for glue or tape, saving you time and effort when packing. With these boxes, you can ensure your items are secure and stylishly presented.

What We Like
Eco-friendly material
Easy assembly
Customizable design
Sturdy and reliable
#TOP 4

HORLIMER White Corrugated Shipping Boxes 13x10x3

White
13" x 10" x 3"
HORLIMER White Corrugated Shipping Boxes 13x10x3 Cover
HORLIMER 13x10x3 inches Shipping Boxes Set of 25, White Corrugated Cardboard Box Literature Mailer

The HORLIMER White Shipping Boxes offer sturdy, recyclable cardboard made from single wall corrugated material, ensuring your items stay safe during daily use. These boxes are designed for quick assembly, so you can set them up in seconds without needing any tape or glue, saving you time and hassle. With a strong 32 ECT grade, these mailers can handle standard stacking, giving you confidence in their durability. Measuring 13x10x3 inches on the outside, they provide a practical size for shipping, mailing, or storing small items, and their clean white surface is perfect if you want to add your own label or customize them yourself.

What We Like
Recyclable sturdy cardboard
Quick, tape-free assembly
Durable 32 ECT grade
Convenient 13x10x3 size
Customizable white surface
#TOP 5

Pemtow 13x10x2 Shipping Boxes Set of 20

FJH13102
bronze
13" x 10" x 2"
Pemtow 13x10x2 Shipping Boxes Set of 20 Cover
Pemtow 13x10x2 Shipping Boxes Set of 20, Brown Corrugated Cardboard Literature Mailer Box for Packaging, Mailing, Business

The Pemtow 13x10x2 Shipping Boxes Set of 20 is perfect for your packaging and mailing needs. Made of high-quality corrugated cardboard, these boxes are durable and safe, with tuck tabs that keep your items secure. They are also easy to fold and tool-free, making them convenient to use. These 13x10x2 small shipping boxes have neat, smooth edges, and are perfect for your own label or DIY. They are multipurpose and widely used in packaging, mailing, and business, making them a great choice for toys, candles, small soaps, biscuits, or other small items.

What We Like
Durable and safe, made of high-quality corrugated cardboard
Easy to fold and tool-free, making them convenient to use
Multipurpose and widely used in packaging, mailing, and business
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Why are mailer boxes so expensive?

At the same time, many cardboard boxes are destroyed to reduce waste by businesses, ultimately resulting in an effect of there being far less boxes in general, driving demand and prices accordingly.

2. What size is a standard mailer box?

The most common subscription box sizes are 8" x 8" x 4", 10" x 6" x 4", and 9" x 6" x 3". These boxes can be sourced from most shipping suppliers since they are so common. However, there are many other sizes available to your business as well.

3. Are boxes or mailers better?

Material Usage: Mailers use less paper than boxes and much less glue. If a mailer provides sufficient product protection, it is a more sustainable option from a carbon footprint & waste perspective. Postage Rates: USPS, FedEx, UPS, often offer flat rate postage rates that can only be attained through a flexible mailer.

4. What boxes are good for shipping?

What is the best material for shipping box packages? Corrugated cardboard makes the best material for shipping boxes. Boxes made of corrugated cardboard are sturdy enough to ensure the safe packaging and shipping of fragile items.

Editor's Notes

During our 13 x 13 box mailer research, we found 24 13 x 13 box mailer products and shortlisted 5 quality products. We collected and analyzed 22,521 customer reviews through our big data system to write the 13 x 13 box mailers list. We found that most customers choose 13 x 13 box mailers with an average price of $29.72.

The 13 x 13 box mailers are available for purchase. We have researched hundreds of brands and picked the top brands of 13 x 13 box mailers, including ELSINPAPOX, Quality Park, KIAECHWU, HORLIMER, Pemtow. The seller of top 1 product has received honest feedback from 14 consumers with an average rating of 4.7.

Written by
Rebecca Cantu Avatar

Rebecca Cantu grew up in a family-owned retail store for home and kitchen products. She worked online and gave assistance to people to buy ideal products for their sweet home after graduating from Northwestern University with a marketing degree. She has been writing content for online shopping guides since 2011 with her professional knowledge and natural sensitivity of appliances.