Shipping Boxes
- 1,000+ stock sizes, custom in 7–10 days
- Single, double & triple wall options
- ASTM D5118 & ECT/Mullen rated grades
ASTM D5118 Certified
ASTM D4727 Certified
CSA Class Code A Certified
30 x 30 x 15 Brown Kraft corrugated shipping boxes are large-format RSC containers designed for industrial shipping, e-commerce fulfillment, and bulk cargo transport. Available in single, double, and triple wall constructions with ECT and Mullen-rated options, these boxes offer reliable protection for oversized and heavy items across a wide range of industries.
Talk to our product experts for custom solutions.
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The 30x30x15 brown kraft corrugated box is available in single wall, double wall, and triple wall constructions. Single wall suits lighter loads, double wall adds stacking strength for heavier contents, and triple wall is ideal for industrial bulk cargo. ECT-rated (32, 44, or 48 ECT) and Mullen/burst-strength-rated options are also available to match carrier requirements.
Talk to our experts for custom solutions and tailored guidance.
Ideal for shipping oversized retail products and reducing dimensional weight charges on large orders.
Used for master packing, palletized freight, and bulk cargo transport in industrial facilities.
Large format boxes suited for packing bulky household and office items during moves.
MIL-SPEC and ASTM-compliant boxes for government procurement and hazardous material shipping.
Talk to our experts for custom solutions and tailored guidance.
Access one of the largest corrugated inventories in the USA, with over 1,300 stock sizes including hard-to-find configurations ready for immediate fulfillment.
Cardboard Boxes 4 U specializes in government and military spec corrugated, including ASTM D5118 and ASTM D4727 compliant V3C and W5C grades for demanding applications.
Get corrugated boxes engineered to your exact dimensions with fast custom lead times of 7–10 days and low minimum order quantities starting at 100 pieces.
Submit your requirements and our packaging specialists will respond promptly with pricing, availability, and volume discount options.
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