Best Self Seal Box Mailers in 2026

Daisy
Last Updated: Feb 9, 2026

At a Glance: Our Top Picks for Self Seal Box Mailers

Pratt PRA0410 100% Recycled Corrugated Cardboard Box, 8" Length x 8" Width x 8" Height, Kraft
#TOP1
Pratt Pra0410 100% Recycled Corrugated Cardboard Box, 8"
9.9
PM SCORE
Pratt PRA0001 Recycled Corrugated Cardboard Single Wall Standard Cube Box with C Flute, 4" Length x 4" Width x 4" Height, (Pack of 25)
#TOP2
Pratt Pra0001 Recycled Corrugated Cardboard Single Wall Standard
9.7
PM SCORE
Pratt PRA0072 Recycled Corrugated Cardboard Single Wall Standard Long Box with C Flute, 14" Length x 6" Width x 4" Height, (Pack of 25)
#TOP3
Pratt Pra0072 Recycled Corrugated Cardboard Single Wall Standard
9.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Self Seal Box Mailers of 2026

Pratt Pra0410 100% Recycled Corrugated Cardboard Box, 8" Length X 8" Width X 8" Height, Kraft

PRATT
PRA0410
8.00 X 8.00 X 8.00 Inches
0.24 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Strong durable 100% recycled large corrugated boxes are ideal for packing shipping and storing heavy items Double Wall construction provides greater protection and stacking strength

Sold in bundle quantities and shipped flat to save on shipping fees and storage space

Corrugated Standard Cube Box

Country of origin: United States

Pratt Pra0001 Recycled Corrugated Cardboard Single Wall Standard Cube Box With C Flute, 4" Length X 4" Width X 4" Height, (Pack Of 25)

PRATT
PRA0001
4.00 X 4.00 X 4.00 Inches
0.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Tailored Packaging 9.69

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Cube shape fits various items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0072 Recycled Corrugated Cardboard Single Wall Standard Long Box With C Flute, 14" Length X 6" Width X 4" Height, (Pack Of 25)

PRATT
PRA0072
14.00 X 6.00 X 4.00 Inches
8.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Long shape fits long, narrow items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0006 Recycled Corrugated Cardboard Single Wall Standard Cube Box With C Flute, 5" Length X 5" Width X 5" Height, (Pack Of 25)

PRATT
PRA0006
5.00 X 5.00 X 5.00 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Packaging Solutions LLC 5.95

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Cube shape fits various items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0028 Recycled Corrugated Cardboard Single Wall Standard Box With C Flute, 10" Length X 7" Width X 3" Height, (Pack Of 25)

PRATT
PRA0028
10.00 X 7.00 X 3.00 Inches
0.24 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Packaging Solutions LLC 6.01

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Rectangular shape fits various items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0026 Recycled Corrugated Cardboard Single Wall Standard Box With C Flute, 10" Length X 6" Width X 4" Height, (Pack Of 25)

PRATT
PRA0026
10.00 X 6.00 X 4.00 Inches
6.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Rectangular shape fits various items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0083 Recycled Corrugated Cardboard Single Wall Standard File Box With C Flute, 15" Length X 12" Width X 10" Height, (Pack Of 25)

PRATT
PRA0083
15.00 X 12.00 X 10.00 Inches
22.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Shaped to fit North American letter size and A4 size paper

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0087 Recycled Corrugated Cardboard Single Wall Standard Box With C Flute, 16" Length X 12" Width X 8" Height, (Pack Of 25)

PRATT
PRA0087
16.00 X 12.00 X 8.00 Inches
0.62 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Rectangular shape fits various items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Pratt Pra0011 Recycled Corrugated Cardboard Single Wall Standard Tall Box With C Flute, 6" Length X 6" Width X 12" Height, (Pack Of 25)

PRATT
PRA0011
6.00 X 6.00 X 12.00 Inches
0.31 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

100 percent recycled corrugated box for packing, shipping, and storing

32 ECT grade for standard stacking performance

Tall square shape fits lamps or other upright items

Made of single wall C flute corrugated fiberboard with standard kraft color

Shipped flat to reduce shipping costs and storage space

Top 10 box mailers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Pratt 9

Top 10 box mailers Brands Pie Chart


We've carried out a comprehensive analysis of 4,438 reviews on box mailers, using our selection criteria to identify the best options in the office & school supplies. Our findings reveal that most customers typically select box mailers priced around $28.05, with top brands including uboxes, wowxyz, mesha, amazon basics, eupako, rinrda, box usa, mebrudy and herkka and horlimer

Our team of expert editors reviewed these high-quality items and handpicked the top 9 box mailers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the office & school supplies category. These include amazon.com, wowxyz, mesha007, eupako direct, rinrda, arter-decor, herkka us, horlimer direct and pharege and dreamyard .

We are dedicated to assisting our users in finding the right mailers Products based on their needs, saving them considerable time when choosing which box mailers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.