Custom Shipping Boxes: A Complete Guide

Custom shipping boxes are the workhorses of e-commerce. Sturdier than mailers and built to protect heavier or larger products, they keep your goods safe in transit while carrying your brand on every side. This guide covers what shipping boxes are, how to choose the right strength and size, and how to brand them.

What is a shipping box?

A shipping box is a standard corrugated box with flaps (a regular slotted container, or RSC) that fold and seal with tape. Sturdier than a mailer box, it is ideal for heavier items, multiple products, or as a secondary box that protects inner packaging during transit.

Choosing the right strength

Corrugated strength is measured by ECT (Edge Crush Test) or burst strength. Single-wall board suits most products; double-wall or triple-wall boxes handle heavy or fragile goods. Flute type (B, C, E, F) affects cushioning and print quality - learn more in our guide to custom printed boxes.

Sizing to cut shipping costs

Right-sizing your box reduces both material and shipping costs and limits product movement. Measure your product and add a small buffer for protective material. For lighter direct-to-consumer orders, a custom mailer box may be a better fit.

Branding your shipping boxes

Even a plain-looking shipping box is prime brand real estate. Print your logo, brand colors, and a message on the exterior - or the interior for an unboxing surprise. Kraft board gives a natural look; white board makes colors pop.

Sustainability

Corrugated shipping boxes are recyclable and often made with recycled content. The U.S. EPA reports cardboard is among the most recycled materials, making shipping boxes an eco-friendly, cost-effective choice.

Frequently asked questions

What is the difference between a mailer box and a shipping box?

A mailer box is self-locking and ideal for lighter e-commerce orders; a shipping box has flaps sealed with tape and is sturdier for heavier or larger items.

How do I choose the right shipping box size?

Measure your product and add a small buffer for protection. A snug fit reduces movement and lowers shipping costs.

Are custom shipping boxes recyclable?

Yes. Corrugated shipping boxes are widely recyclable and often contain recycled material.

Ship it protected and branded

Protect your products and promote your brand. Explore our custom shipping boxes or browse the e-commerce boxes collection.