Not every product belongs in a deep box. Custom side-loading mailers address the unique challenges of shipping flat items. At Custom Creative Boxes (CCB), we manufacture these boxes with a focus on structural rigidity. The side-loading mechanism allows for a tighter fit, reducing internal movement?the leading cause of shipping damage.

Whether we are fulfilling orders from Issaquah, WA or our California production center, we use FSC-certified corrugated stock that balances weight and strength. This helps you save on dimensional weight shipping costs while providing a box that feels substantial and premium to the touch.

A side-loading box offers a unique “reveal” compared to top-opening self-locking mailers. By utilizing our 360-degree printing capabilities, you can turn the large flat surfaces of these mailers into billboards for your brand. High-resolution graphics on kraft or white board allow for sophisticated designs that resonate with your target market.

For high-end publishers and artists, we recommend adding a soft-touch laminate or spot UV finish. These tactile enhancements elevate a functional shipping container into a collectible piece of packaging, reinforcing the value of the product inside.

At RCB, we believe premium packaging shouldn’t cost the earth. Our side-loading mailers are 100% recyclable and made with a high percentage of post-consumer waste. As a family-owned business, we provide the personalized service you need to get your dimensions exactly right. With wholesale pricing and free shipping across the USA, we make it simple and affordable to upgrade your fulfillment strategy.