🔍 What is a Corrugated Flute?
A flute is the inner wave-shaped structure of a corrugated carton box that provides strength and rigidity. The flute type determines the thickness, stacking strength, and cushioning ability of the box. Flutes are classified by letters, such as A, B, C, E, and F, each offering different characteristics.
🧱 Common Carton Box Flute Types & Their Uses
A Flute (≈ 5mm thick)
- Features: Largest and thickest flute.
- Best for: Heavy-duty protection, fragile items, high stacking strength.
- Common Use: Electronics, industrial parts, ceramics.
B Flute (≈ 3mm thick)
- Features: More rigid, excellent for die-cutting.
- Best for: Retail packaging, canned goods, POP displays.
- Common Use: Smaller, sturdy shipping boxes.
C Flute (≈ 4mm thick)
- Features: Versatile and widely used.
- Best for: General shipping, stacking strength with decent cushioning.
- Common Use: Most carton boxes in Malaysia are made with C Flute.
E Flute (≈ 1.5mm thick)
- Features: Thin and lightweight, smoother surface.
- Best for: High-quality print, retail and cosmetic boxes.
- Common Use: Inner packaging, branded boxes.
F Flute (≈ 0.8mm thick)
- Features: Very fine flute, excellent for sharp printing.
- Best for: Premium retail packaging, small boxes.
- Common Use: Perfume boxes, luxury goods.
📦 Double Wall Carton Box – What’s That?
Some boxes use two different flutes (like BC or EB flute) for enhanced strength and shock resistance. Double-wall corrugated boxes are perfect for heavy or fragile products that need extra protection during transport.
💡 How to Choose the Right Flute Type?
When selecting a carton box in Malaysia, ask yourself:
- What is the weight of the item?
- Is cushioning more important, or stacking strength?
- Do you need high-quality printing on the surface?
Still unsure? Sumopack’s expert team will guide you to the best choice based on your packaging needs and budget.
📍 Why Choose Sumopack for Carton Boxes in Malaysia?
As a reliable carton box supplier Malaysia, we offer:
- A wide range of flute types and sizes
- Custom carton packaging options
- Minimum order starting from low quantities
- Fast delivery across Klang Valley and nationwide
From eCommerce shipping boxes to custom carton packaging, we ensure your products are packed securely and professionally.
✅ Wrap-up: Flute Type = Box Performance
Understanding corrugated carton flute types helps you choose the right box that balances cost, protection, and branding. Whether you need B flute boxes for stacking or E flute for printing, Sumopack has the packaging solutions you need.
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