Corrugated Literature Mailers, 18″L x 12″W x 3″H, Kraft – Pkg Qty 25

Description

Corrugated Literature Mailers are rigid cardboard shipping boxes designed specifically for protecting and mailing flat materials such as catalogs, brochures, magazines, and marketing collateral. These 18″L x 12″W x 3″H kraft mailers provide a professional, cost-effective solution for businesses that need to ship printed documents and promotional materials while maintaining product integrity during transit.

Each mailer features corrugated construction with a natural kraft exterior that offers excellent structural rigidity and inherent cushioning protection. The 3-inch depth accommodates stacked literature, brochures, and folded documents without crushing, while the generous 18″ x 12″ dimensions provide ample space for standard 8.5″ x 11″ materials and larger catalogs. These mailers feature a standard die-cut design with a tuck-and-fold closure that requires no tape or additional assembly beyond inserting contents. The kraft material is unbleached and eco-friendly, making it ideal for environmentally conscious businesses. This bulk package of 25 units reduces per-unit costs compared to smaller quantities, and the consistent box dimensions allow for streamlined warehouse organization and shipping workflows.

Marketing departments, publishing companies, promotional product distributors, and e-commerce businesses regularly use literature mailers to ship printed catalogs, product samples, trade show materials, and direct mail campaigns. Nonprofit organizations, educational institutions, and corporate communications teams rely on these mailers for annual reports, newsletters, and fundraising packages. Real estate agencies, insurance companies, and financial institutions use them for client documentation packages and marketing inserts. The corrugated construction is particularly valuable when shipping to multiple recipients, as the boxes stack efficiently in storage and maintain their shape through the shipping supply chain, reducing damage claims and customer complaints.

When selecting corrugated mailers, consider the weight of your contents—heavier literature requires thicker corrugated board, typically measured in ECT (Edge Crush Test) rating. Standard literature mailers usually feature 200# test strength, suitable for most printed materials. Evaluate your closure preference: tuck-and-fold designs eliminate tape costs and improve unboxing experience, while some applications may benefit from reinforced tape-seal options. Verify that your typical document dimensions fit comfortably with at least 0.5 inches of clearance on all sides to prevent binding and allow for efficient packing. Consider bulk packaging quantities based on your monthly shipping volume—purchasing in cases of 25 or more significantly reduces cost per unit. Review your carrier’s dimensional weight pricing to ensure the mailer’s size aligns with your shipping budget, as oversized packaging may trigger surcharges with major carriers.

What size literature should I ship in an 18″ x 12″ x 3″ mailer?

This mailer accommodates standard letter-size (8.5″ x 11″) documents, 11″ x 17″ tabloid-size materials, and catalogues up to approximately 12″ x 18″ when folded. The 3-inch depth allows for approximately 200-300 sheets of 20# bond paper or equivalent stacked flat, making it ideal for multi-page brochures, catalogs, magazines, and marketing collateral packages. For optimal protection and ease of insertion, keep contents at least 0.5 inches smaller than the mailer’s interior dimensions.

How do I assemble and use these kraft literature mailers?

These mailers feature a simple tuck-and-fold closure that requires no tools or tape. Insert your folded literature or stacked documents into the box cavity, then fold the overlapping flaps down to create a self-locking seal. The design uses the weight and friction of the contents to maintain closure during shipping. For added security with heavier items or for UPS/FedEx shipping, you may apply kraft tape across the seams, though this is typically optional for standard mail and parcel services.

What is the difference between kraft and white corrugated mailers?

Kraft mailers feature unbleached, natural brown corrugated material that offers excellent structural strength and environmental appeal; the natural color conveys an eco-conscious brand image. White corrugated mailers provide a cleaner, more premium appearance and work better with printed logos and branding. Kraft is more cost-effective and provides superior puncture resistance, making it ideal for high-volume shipping and cost-sensitive applications. White versions are preferred for premium direct mail campaigns and luxury product shipments where aesthetics are a priority.

Stock your supply closet with these dependable kraft literature mailers—we offer fast shipping on bulk quantities to keep your fulfillment operations moving without delay.

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