Four Corner Tray

1. Diagonal Gusset Corner Lock & Rapid Setup

Designed with factory pre-glued diagonal web corners, the four corner tray eliminates manual folding hassle. Simply pull opposing sidewalls outward and the tray locks into a rigid, leak-resistant rectangular container instantly. When packed flat, the trays save up to 75% warehouse storage volume compared to pre-set rigid boxes.

2. FDA-Compliant Food & Beverage Substrates

Available in a full range of high-yield packaging boards tailored to your product weight and moisture requirements:

• Virgin Kraft Paperboard: 100% recyclable unbleached brown kraft with natural rustic appeal, perfect for artisanal bakeries and craft beer flights.
• Solid Bleached Sulfate (SBS): Pure white food-grade paperboard coated for vibrant photo-quality offset printing.
• Poly-Coated Moisture Barrier: Internal polyethylene or water-based barrier lining prevents grease soaking, icing stick, and oil bleed-through.
• Corrugated Micro-Flute (E-Flute & F-Flute): Extra rigidity for heavy glass bottles, beer growlers, and industrial components.

3. Custom Die-Cut Partitions & Handles

Optional custom-engineered features include die-cut center carry handles, finger-grip cutouts, and 4-way cross partition dividers that isolate glass beer bottles or delicate cupcakes during transit.

4. Technical Specifications Summary