Best Birthday Mailers in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mat Board Center | 9.95 | ✅ | ✅ | ✅ |
Dimensions: These corrugated cardboards measure 8.5 x 11 inches, 1/8 inch thick.
Quantity: 25 pcs corrugated cardboard layer pads.
Color: White sheets offer a nice clean look and help the layer separations stand out.
8.5 x 11" corrugated layer pads are sized to fit the most commonly used box sizes. Top layering protects products when box is being cut open.
Perfect for: Place between layers of product for protection and to disburse weight. Layer pads also make great stiffeners for envelopes.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mat Board Center | 9.95 | ✅ | ✅ | ✅ |
25 pack 5x7 inches flat corrugated cardboard sheets.
Use these flat card board to protect important documents from bending when posting them.
Multi-Purpose: Use these cardboard backing for photo backing, picture frame or welcome sign! It can be also used as cardboard inserts, corrugated packaging pads, cardboard dividers.
B-Flute 1/8" corrugated cardboard.
The corrugated sheets are made from sturdy cardboard that resists bending and folding.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Golden State Art | 9.95 | ✅ | ✅ | ✅ |
50 full sheets of corrugated cardboard pads.
Dimensions: These cardboard squares measure 6x9 inches.
B-Flute corrugated cardboard 1/8" thick.
6 x 9 inch cardboard is ideal for shipping, frames, arts and crafts, or household uses.
Made from thick and durable cardboard that won't bend or fold easily.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Golden State Art | 9.95 | ✅ | ✅ | ✅ |
50 full sheets of corrugated cardboard pads
Dimensions: These cardboard squares measure 5x7 inches
B-Flute corrugated cardboard 1/8" thick
5 x 7 inch cardboard is ideal for shipping, frames, arts and crafts, or household uses
Made from thick and durable cardboard that won't bend or fold easily
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ZMYBCPACK | 9.85 | ✅ | ✅ | ✅ |
Package contains: 50 pack 9x12 inch corrugated cardboard sheets.Filler inserts for packing, crafts, mailing.
Specification: These corrugated packaging pads is 9x12 inch. Kraft brown colored.
Material: Made of high quality cardboard. Pressure-resistant and not easy to bend.
Bulk Flat Insert Sheets: Use the cardboard sheets insert into the package to reduce bending or damage during transportation.
Craft Cardboard Sheets: Easy to cut to your desired size and shape for picture frames, school craft projects, custom artwork or any other DIY decor.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| GUAN ZHONGPEI | 9.83 | ✅ | ✅ | ✅ |
Dimension: Each chipboard sheet is 30cm x 30cm/11.8" x11.8" (about 12") and 1/8" thick, B-Flute. Can be cut to your desired size and shape.
These corrugated cardboard sheets are perfect to add extra protection when shipping. Use these cardboard mailer inserts for extra protection against bending when putting important documents in the mail, reinforce envelopes to keep sensitive documents flat on their journey through the post.
Perfect for DIY crafting projects in different situations, such as upcoming wedding, birthday party, baby shower, or family gathering.
These flat cardboard sheets can even be used in the folding and presentation of clothing and textiles, such as shirts, sheets and bedding. Also add support to packaged paper products such as calendars and art prints.
Including 50 Packs kraft brown cardboard, great for a solid backing.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Golden State Art | 9.95 | ✅ | ✅ | ✅ |
Included: 50 pack 11x14 inches corrugated cardboard layer pads.
B-Flute corrugated cardboard 1/8" (3mm) thick.
White on one side and natural brown on reverse.
Cardboard sheets are very suitable for adding extra protection during transportation and packaging to ensure the safety of your items.
Corrugated layer pads also make great stiffeners for envelopes.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Mat Board Center | 9.95 | ✅ | ✅ | ✅ |
What's Included: You will receive 50 9x12 corrugated cardboard sheets.
Dimensions: Each piece of corrugated cardboard measures 9x12 inches and is 1/16 inch thick.
Easy To Customize: The cardboard can easily be customized with paint, glitter, stickers, and ribbon to create custom decor for an upcoming baby shower, birthday party, or holiday gathering.
for Mailing: Perfect to add extra protection when shipping. Use the cardboards for extra saving against bending when putting important documents in the mail.
Crafting Ideas: You can use corrugated cardboard sheets for craft to make photo frames, billboards, signs and other DIY works.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Jingfanun | 9.89 | ✅ | ✅ | ✅ |
Corrugated Cardboard Set: you will receive 100 sheets of corrugated cardboard, sufficient quantity and large enough for your needs of packaging and craft making. Available in different sizes for you to choose from, size details are shown in the picture
Smooth and Flat: this flat corrugated cardboard has fine workmanship, the surface is flat and smooth, and the texture is clear, not rough, not easy to scratch the items that need to be packaged, practical and neat
Quality Thicker Board: the thickness of the inserts paper board sheet is approximately 0.12 inch, not easy to break or deform, which can provide support for your items during transportation, avoid items from being deformed during transportation
Supplies for Crafts: these thick corrugated cardboard have the blank surface, you can draw patterns or add text to make photo backgrounds, photo frames, name tags, decorations, and other handicrafts
Wide Application: filler inserts sheet pads are widely suitable for home, shop, office, school, etc. Ideal for wrapping items such as documents, postcards, greeting cards, stickers, stamps, certificates, etc. and can also be crafted as a handmade material
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Jingfanun | 9.89 | ✅ | ✅ | ✅ |
Corrugated Cardboard Set: you will receive 100 sheets of corrugated cardboard, sufficient quantity and large enough for your needs of packaging and craft making. Available in different sizes for you to choose from, size details are shown in the picture
Smooth and Flat: this flat corrugated cardboard has fine workmanship, the surface is flat and smooth, and the texture is clear, not rough, not easy to scratch the items that need to be packaged, practical and neat
Quality Thicker Board: the thickness of the inserts paper board sheet is approximately 0.12 inch, not easy to break or deform, which can provide support for your items during transportation, avoid items from being deformed during transportation
Supplies for Crafts: these thick corrugated cardboard have the blank surface, you can draw patterns or add text to make photo backgrounds, photo frames, name tags, decorations, and other handicrafts
Wide Application: filler inserts sheet pads are widely suitable for home, shop, office, school, etc. Ideal for wrapping items such as documents, postcards, greeting cards, stickers, stamps, certificates, etc. and can also be crafted as a handmade material
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Golden State Art | 9.95 | ✅ | ✅ | ✅ |
Included: 25 pack 11x17 inches corrugated cardboard layer pads
B-Flute corrugated cardboard 1/16" (about 2mm) thick
White on one side and kraft brown on reverse
Cardboard sheets are very suitable for adding extra protection during transportation and packaging to ensure the safety of your items
Use corrugated cardboard for craft to make photo frames, billboards, signs and other DIY projects
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Anndoo | 7.67 | ✅ | ✅ | ✅ |
★RIGID AND LIGHTWEIGHT★ These cardboard sheets are actually sturdy and rigid adding a good support for delivering for shipping cards, postcards, photography prints and other items you don't want to bend. Compared to chipboard, they are also pretty lightweight so they don't make your package too heavy.
★FOR ANY OCCASION★ The corrugated packaging pads are ideal for creating DIY decor for an upcoming parties, Shipping or Mailing, Divider in drawer, etc.
★WELL PACKAGE IN CARE★ They also do NOT come bound by strapping which always causes damage. Each piece of corrugated board is stacked neatly one by one and packed with a clear bag in secured way. Not the package that you don’t expect.
★GREAT VALUE PACK★ The corrugated cardboard sheets include 200 pieces in a set which is more than enough for your multiple frames, DIY projects or small business in shipping.
★MEASUREMENT★ Each piece of cardboard pad is 5x7 Inch in 2mm thickness. These cardboard inserts are just what you needed and we are confident that you will be back for more because there have no complaints from the recipients.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| suituts | 7.56 | ✅ | ✅ | ✅ |
Package Include: 50 pack 11"X14" corrugated cardboard sheets.
Material: These Corrugated Packaging Pads are made of quality cardboard, practical, strong, not easy to break or deform. Strong material can guard art prints, DIY photos, CDs, books, certificates, documents, paper, etc.
Material: These Corrugated Packaging Pads are made of quality cardboard, practical, strong, not easy to break or deform. Strong material can guard art prints, DIY photos, CDs, books, certificates, documents, paper, etc.
Cardboard sheets for crafts: The large cardboard sheets can be painted, glued, cut to create different designs, perfect for kids or students making DIY Crafts.
Wide Application: Can be used as the cardboard sheets insert to protect items from damage due to collisions. Also perfect for craft projects, DIY art, classroom projects, Stem projects.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tiimmeen | 9.88 | ✅ | ✅ | ✅ |
Sufficient Quantity for Using: you will receive 110 pieces of corrugated cardboard sheets in brown, designed with a size of approx. 28 x 21.5 x 0.15 cm/ 11 x 8.5 x 0.06 inches, enough to meet your packaging and crafting demands in daily life
Reliable Material for Confident Using: the corrugated insert is made of quality corrugated paper, has a smooth surface and reasonable thickness, able to serve as an ideal cushion for your items, to reduce scratches
Flexible to Use: it's easy for you to stack several flat cardboard sheets together, to make a thicker cushion, keeping your articles from abrasion during transportation; You can easily cut the sheets according to your actual needs, not occupying too much time or energy
Explore DIY Pleasure: the cardboard divider inserts can be practical materials for paper crafting, specifically, you can paint, draw, or embellish them with sequins, stickers or ribbons, to create beautiful and distinctive ornaments for bridal shower, birthday party, Halloween and more, which can bring you lots of crafting fun and a sense of achievement
Satisfactory Practicality in Life: the flat cardboard squares separators are ideal helpers at home, shop, office, school, restaurant, hotel, supermarket and more, ideal for packaging items like photo frames, documents, invitations, postcards, greeting cards, stickers, stamps, certificates and more, bringing you lots of convenience
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Tiimmeen | 9.89 | ✅ | ✅ | ✅ |
What You Can Get: you can get 20 pieces of vinyl records shipping boxes, 50 pieces of Kraft brown LP record pads and 1 roll of fragile stickers in this package, they are sufficient quantity and simple appearance can meet your decorative and shipping needs in your daily life
Information About Size: the size of corrugated cardboard sheets for shipping records is about 12.5 x 12.5 inches, the size of cardboard record mailers is about 12.5 x 12.5 x 1 inch, and each fragile sticker is about 2 x 3 inches, and there are 500 pieces of stickers in a roll
Reliable Material: record LP shipping mailer boxes are made of quality cardboard, record mailer insert pads are made of 3 layers corrugated paper, serviceable, lightweight and portable, and reusable; Fragile stickers are strong enough to provide nice using experience
Thoughtful Combination: put Kraft brown LP record pads into the shipping mailer boxes to add a layer of protection to the records to avoid the corners from being frayed, and then seal the box with fragile stickers for shipping to avoid the box from opening accidentally during transportation
Widely Applied: our packaging boxes for small business set is very suitable for storing and safely transporting LP record albums, books, photo frame pictures, photo albums and booklets and so on; 3 products can be applied together to better keep your beloved things well
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LHUS-Store | 7.97 | ✅ | ✅ | ✅ |
DURABLE TO USE - The 1/8 inch thick cardboard sheets are made of corrugated cardboard that is practical, and durable. It can be applied to reinforce and add support to the item.
VALUE FOR MONEY - The package contains 50 pieces of corrugated cardboard sheets in total, each with the size of 11 x 8.5 inches, sufficient to meet your various needs, and lightweight material helps you save on postage and shipping costs.
EXTRA PROTECTION - These 3mm flat cardboard inserts add an extra layer of protection and cushioning for shipping and mailing safety, no worries about bending when you mail books or important documents.
WIDE APPLICATION - These corrugated cardboard sheets not only add extra protection when shipping, but also can be used for arts, crafts, and other DIY projects or placed under household items as padding or an absorbent.
RISK-FREE PURCHASING - Buy these craft cardboard sheets with confidence! If you are not satisfied, please feel free to contact us. We will refund your money or replace the items free of charge.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Guouganty | 9.93 | ✅ | ✅ | ✅ |
Corrugated Cardboard Value Pack: you will receive 300 packs of corrugated cardboard sheets, enough to meet your daily packaging and DIY crafting needs, and you can also share them with your family and friends
Product Size: the brown corrugated cardboard measures about 28 x 22 cm/ 11 x 8.7 inches, you can cut different sizes according to different usage needs; These large cardboard sheets are about 2 mm thick, not easy to break or deform, and can provide support for your items when transportation and prevent items from deforming during transportation
Quality Material: the flat cardboard sheets are made of quality thickened cardboard paper with a smooth surface, not easy to bend and break; You can use these thick cardboard sheets to strengthen your packing to keep the mail flat during mailing or avoid items from breaking due to collision
DIY Crafts Supplies: these cardboard divider inserts for mailers have a blank surface and are also nice as DIY art craft supplies; You can paint and decorate them with sticker baubles, make photo frame backdrops, postcards and other crafts, or cut them out to make it into the shape you want, such as storage box, pen holder and more
Wide Application: the cardboard sheets are wide application in our daily life, which are suitable for home, shops, offices, schools, restaurants, hotel and supermarkets; You can also use these craft cardboard sheets to pack photo frames, documents, invitations to avoid them from being in the bent or broken in the mail
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Golden State Art | 4 |
| Mbc Mat Board Center | 3 |
| Henoyso | 2 |
| Yexiya | 2 |
| Anssdo | 1 |
| Fainne | 1 |
| Fengwu | 1 |
| Heihak | 1 |
| Suituts | 1 |
| Zmybcpack | 1 |
We've carried out a comprehensive analysis of 493 reviews on mailers, using our selection criteria to identify the best options in the office & school supplies. Our findings reveal that most customers typically select mailers priced around $26.35, with top brands including fuxury, kkbestpack, amazon basics, metronic, upaknship, pakaboo, newlng, package mint and ruspepa and trwcrt
Our team of expert editors reviewed these high-quality items and handpicked the top 17 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 fu global, amazon.com, jiaro international, sack of wonders, attractive home, newlng, package mint, ruspepa® and trwcrt and ch packaging .
We are dedicated to assisting our users in finding the right mailers Products based on their needs, saving them considerable time when choosing which mailers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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