Custom mailer boxes with inserts are tailored packaging solutions for excellent product presentation and safe transportation. These boxes are available in unique designs and sizes to meet diverse product requirements. Inserts are manufactured from paper, cardboard, or foam to keep products in their place while reducing movement during transportation. These inserts also boost the unboxing experience, making packaging ideal for gift and e-commerce purposes.










01Send your size, material and quantity — we'll price it for you.
02Our designers prepare your dieline and a realistic 3D mockup — at no cost.
03Review and sign off on the exact colours and layout before anything prints.
04We print, finish and ship your order to your door with care.
Posted on Google Sharon GaRodTrustindex 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 RawlinsTrustindex verifies that the original source of the review is Google. Easy communication and quick high quality deliveryPosted on Google John BaeTrustindex 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 McGuireTrustindex verifies that the original source of the review is Google. Chatting was very easy.Posted on Google Andrew ShortellTrustindex 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 LippincottTrustindex 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 NievesTrustindex verifies that the original source of the review is Google. Excellent work.Posted on Google Samantha MillerTrustindex 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 KraynikTrustindex 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!Posted on Google Mike RadiganTrustindex verifies that the original source of the review is Google. We hired Instant Custom Boxes (ICB) for a luxury event and received a defective product that didn’t match our approved design. The logo was incorrect—they added an “E” to “Build It.” even though that error was not on the approved design. The boxes were completely unusable for our client presentation. ICB acknowledged the mistake and promised a refund—first in 12–18 business days, then via monthly payments. After more than a year, we’ve only received three partial payments totaling $763.42. As of today, they still owe us $763.44. We gave them multiple opportunities to resolve this amicably. We sent repeated messages, set clear deadlines, and even indicated we’d consider removing the review if they fulfilled their refund obligation. If they had simply paid what they promised, we wouldn’t be here. Instead, they are now withholding the remainder of our refund unless we delete this honest review. Their team wrote: “Our team has requested that all negative reviews posted online be removed prior to proceeding with the final refund.” “Once the reviews are taken down, we will be able to process the remaining amount immediately.” “Delete All negative reviews Online then we will proceed with remaining fund by end of this month.” We’ve spoken with James Fletcher, Paul Millers, and David Albert—each made promises, none followed through. Their phone numbers now go to voicemail or are blocked. They’ve removed review options from other platforms and only highlight positive reviews on their website. This is not a trustworthy company. Poor communication, broken promises, and now unethical conduct to suppress public feedback. We are filing complaints with the California Attorney General, FTC, and other agencies. We cannot caution potential customers enough: Buyer beware. Find another company. It’s not worth the risk—or your money.Verified by TrustindexTrustindex 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
Custom mailer boxes with inserts are the perfect solution for your mailers, handouts, and more. These custom mailer boxes are easily assembled and require no tape or glue. It can be used as a mini brochure holder. Our custom boxes are a great way to add style and extra storage to your campaigns. These mailers are printed with your custom design and are ready to ship. Order these boxes with inserts, package them inside, and mail them together!
Our mailer packaging with insert lets you send your shoppers a keepsake from your store and an invitation to return. The inner box is designed to hold the insert, mini catalogs, flyers, or gift cards. Your products are protected in the outer box, and a handle makes for easy carrying.
These mailers are perfect for hauling products to hand out or announcing important news. They feature inserts so you can customize the information you want to share, plus a tear-off address label that makes it easy for recipients to write back if they have questions. We quickly make creative custom mailer boxes wholesale for your business with our suite of customizable inserts. Select the size that fits your needs, add an insert, and print!
Our boxes feature a design that’s both sleek and stylish. With this packaging material, you’re guaranteed to stand out in the crowd.
Mailer boxes with insert wholesale are designed to be used in the direct mail industry, where several items must go into a single package. There are mailing envelopes (Envelopes), brochures, and other standard-sized sheets of paper or pamphlets. Our mailers have an envelope insert that fits inside them, creating a package with more than one item. This feature allows businesses to mail multiple things at once without spending a lot of money on stamps.
They are a great way to keep your mailings tidy, organized, and protected from damage. The corrugated mailers have a bottom insert made of a sturdy whiteboard. It’s both durable and reusable, so you can use it repeatedly. It snaps back into place in the bottom of the box, where it will protect your mailing inside.
The design features of mailer packaging Boxes with inserts can help you communicate more deeply with your customers. Whether through Color and graphics, information about the product, or just using our inserts to present your products better, we make it easy for you to get your message across.
Our mailer boxes are designed to enhance the overall mailing experience. Various sizes are available to accommodate all of your product packaging needs. They are designed with the perfect combination of durability and a sleek look. The durable corrugated construction offers support for inserts, and a heavyweight, glossy outer shell makes this mailer box a professional presentation. These economical boxes have a significant impact on any mailing project.
| Box Style | Custom Mailer Boxes with Inserts |
| 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 |