
Stock Boxes
- Custom sizes cut to exact dimensions
- Low MOQ starting at just 100 pieces
- 32, 44 & 48 ECT ratings available
ASTM D5118 Certified
ASTM D4727 Certified
CSA Class Code A Certified
Weather Resistant Storage Boxes & Bins from Cardboard Boxes 4U include MIL-SPEC compliant V3C and W5C corrugated boxes engineered to withstand moisture and harsh conditions. These solutions serve military, government, industrial, and e-commerce applications with custom sizing, ASTM-certified materials, and robust wall construction options.






Weather resistant storage boxes are manufactured with moisture-barrier coatings and compliant materials such as ASTM D4727-rated corrugated fiberboard. These boxes feature treated flutes and liners that prevent water infiltration, maintaining structural integrity in humid, wet, or outdoor storage environments. MIL-SPEC V3C and W5C configurations offer the highest level of weather protection available in corrugated packaging.
Talk to our experts for custom solutions and tailored guidance.

MIL-SPEC V3C and W5C weather resistant boxes meet ASTM D5118 for government procurement and hazmat transport.

Certified corrugated packaging protects sensitive components during outdoor storage and long-distance defense logistics.

Heavy-duty weather resistant bins protect manufactured parts and assemblies in plant storage and outdoor shipping environments.

Moisture-resistant corrugated boxes ensure product integrity for outdoor last-mile deliveries and seasonal fulfillment.
Talk to our experts for custom solutions and tailored guidance.
Our weather resistant boxes meet ASTM D5118 and D4727 standards, ensuring full compliance for government, military, and industrial procurement requirements.
We manufacture boxes to exact specifications — from small e-commerce parcels to oversized military-grade containers — with low 100-piece minimum orders.
With over 1,300 corrugated box sizes including V3C, W5C, and Fanfold configurations, we stock hard-to-find formats unavailable through general packaging suppliers.
Submit your specifications and our packaging experts will respond with pricing, compliance documentation, and sample availability within one business day.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.
To help us assist you faster, please include the reason for your message so the relevant team can reach out as soon as possible.