Flat Mailers

(39 reviews)

Flat Mailers are a great way to ship out your products! These mailers include glue on one side, designed specifically for each particular product. We offer different sizes in our flat mailers and they are perfect for shipping small items such as books or CDs. These mailers are designed specifically to protect flat items during shipping, and have a tear strip so you can easily open them.

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How it works

Get a quote

01Send your size, material and quantity — we'll price it for you.

Free design & dieline

02Our designers prepare your dieline and a realistic 3D mockup — at no cost.

Approve digital proof

03Review and sign off on the exact colours and layout before anything prints.

Production & delivery

04We print, finish and ship your order to your door with care.

What Our Clients Say

      
   Instant Custom Boxes (ICB)
   15 Google reviews 
  Write a review 
 
 
 
   
 
 
      Posted on Google  
   
   Sharon GaRod 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful assisting me on placing my order as well as patient on any question I had.
  
 
     Posted on Google  
   
   Nathaniel Rawlins 
 
 
 
 Trustindex verifies that the original source of the review is Google. Easy communication and quick high quality delivery
  
 
     Posted on Google  
   
   John Bae 
 
 
 
 Trustindex verifies that the original source of the review is Google. My representative, Paul Millers, is an excellent source for advice in addition to some beautiful mailer boxes. We have placed at least two dozen orders for large quantity boxes and rarely, if ever, experienced any issues.
  
 
     Posted on Google  
   
   Terry McGuire 
 
 
 
 Trustindex verifies that the original source of the review is Google. Chatting was very easy.
  
 
     Posted on Google  
   
   Andrew Shortell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Instant Custom Boxes are my go to resource for branded boxes. They are easy to work with, understand the projects and produce on time and with the highest quality. Would recommend to anyone looking for custom printed boxes.
  
 
     Posted on Google  
   
   Emma Lippincott 
 
 
 
 Trustindex verifies that the original source of the review is Google. ICB is the best printer I have worked with in my professional career. They had low minimums, plenty of options, and great quality. James was fantastic to work with; he always responded very quickly, looked over my files with great detail and kept me in the loop with every stage of the process. I worked with them remotely for this project, so having updates was great. Absolutely recommend ICB for your custom printing needs.
  
 
     Posted on Google  
   
   Adonis Nieves 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent work.
  
 
     Posted on Google  
   
   Samantha Miller 
 
 
 
 Trustindex verifies that the original source of the review is Google. Instant Custom Boxes provided great service for my company on two different occasions.  They delivered high-quality cartons matching my specifications very quickly.
  
 
     Posted on Google  
   
   Faith Kraynik 
 
 
 
 Trustindex verifies that the original source of the review is Google. Contacted Instant Custom Boxes for a last minute box print need. They were super responsive, honest about their delivery timeline ability and ended up making a beautiful product that arrived faster than promised. Will definitely use this company for future box printing needs!
  
 
 
  
 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Detailed Description

Looking for the best way to ship your delicate and exclusive products? You will love our rigid stay flat mailers! These mailers are perfect for protecting your valuable products during transit. Yes, at Instant Custom Boxes, we are proud to use high-quality materials that ensure durability. Simply place your order today to enjoy our 50% discount!

Customizable Flat Mailers to Meet Your Branding Needs

As a packaging company, we understand the importance of branding. To win the market, you need to present a professional image. That’s why our flat mailers are customizable to reflect your unique brand identity. Yes, this means you can choose from various sizes, colors, and designs. With our free design support, you can create a packaging solution that protects your products. More than that, it will also promote your business.

Our packaging company has gained a reputation for exceptional quality and reliability. Businesses of all sizes trust our products to transport their valuable products safely. Yet, the best part is that we provide complete customization options. Plus, we have a price match guarantee for the durability of our products.

We Provide Easy and Convenient Rigid Flat Mailer

We know that shipping can be a time-consuming task. But our exceptional Rigid Flat Mailer can make it quick and hassle-free. Additionally, its user-friendly design saves you valuable time. At the same time, it ensures a secure closure every time.

Yes, our rigid stay flat mailers are the perfect fit for shipping documents or other flat products. Most importantly, their flat construction makes them ideal. Plus, with a range of available sizes, you can find the perfect option for your products. In simple words, we will accommodate your specific product requirements!

Environmentally Friendly and Sustainable Stay Flat Mailers at Affordable Rates

We care about the environment, and we know you do too. This is why we produce our stay flat mailers from eco-friendly materials. You can choose the material you need, such as recyclable paperboard or kraft. Together with our packaging professionals, you can design a sustainable packaging solution.

What’s more, we know that shipping costs can quickly add up. However, our custom mailers offer an affordable solution. Their lightweight design minimizes shipping expenses. Meanwhile, their sturdy construction eliminates the need for additional protective materials. With our mailers, you can provide superior protection for your items without breaking the bank! Far better, you can get Custom Printed Mailer Boxes with no minimum order quantity!

Order Your Rigid Stay Flat Mailers Today and Experience Hassle-Free Shipping!

Instant Custom Boxes offer an ideal option to ship your delicate and valuable products. Our rigid stay flat mailers are the best shipping solution for you. After all, you should never compromise on the safety of your products. So, order branded mailer boxes today and experience our hassle-free shipping!

Box Style	Flat Mailers
Brand	Instant Custom Boxes
Dimension (L + W + H)	All Custom Sizes & Shapes
Quantities	No Minimum Order Required
Paper Stock	10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock
Printing	No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors
Finishing	Gloss Lamination, Matte Lamination, Gloss AQ, Gloss UV, Matte UV, Spot UV, Embossing, Foiling
Included Options	Die Cutting, Gluing, Scored, Perforation
Additional Options	Eco-Friendly, Recycled Boxes, Biodegradable
Proof	Flat View, 3D Mock-up, Physical Sampling (On request)
Turnaround	4 - 8 Business Days, RUSH
Shipping	FLAT

Ready To Make Your Packaging Unforgettable?

Get a free quote and a 3D mockup — no commitment.

Copper Foil

Gold Foil

Silver Foil

Holographic Foil

Debossing

Embossing

Spot UV

Matte Lamination

Gloss Lamination

Soft Touch Coating

Offset Printing

Digital Printing

SBS-Board

Rigid

Kraft-Stock

Grey-Board

Corrugated

Frequently Asked Questions

Q: I want my Mailler boxes to be bend-resistant. Can you offer that?

We understand this fact and problem, and that is why we use extra-rigid chipboard, which is known for being heavy-duty. This allows us to make sure that they are bend-resistant and their corners do not crush easily as well.