The Complete Guide to Corrugated Carton Box Fluting in Singapore: E, B, C, EB & BC Compared
- Dec 5, 2025
- 4 min read
Your guide to choosing the right corrugated carton box fluting for your business,
When choosing corrugated carton boxes in Singapore, the biggest mistake most businesses make is assuming that all carton boxes are the same. In reality, the fluting inside the cardboard — the wavy layer sandwiched between liners — determines everything from strength to rigidity to shock absorption.
At CL Packaging, we help businesses choose the correct corrugated flute type for their products so they can ship confidently, reduce damage rates, and optimise cost. This guide breaks down the most common fluting types used across Singapore: E-flute, B-flute, C-flute, EB and BC double flutes — and when you should use each one.
What Is Corrugated Fluting — and Why It Matters
Corrugated fluting is the middle layer that creates the “strength” of a carton box. It affects:
Crush resistance
Stackability
Shock absorption
Surface smoothness (for printing)
Weight of the box
Cost of packaging
Choosing the right flute ensures your packaging is strong enough to protect your products, but not unnecessarily heavy or expensive.
The Main Types of Corrugated Fluting in Singapore
Below is a breakdown of the most widely used flutes in the Singapore packaging industry — including the exact strengths, best uses, and advantages.
1. E-Flute (≈1.2mm – 1.5mm thick)
Best for: Retail packaging · Cosmetics · Electronics accessories · Food packaging
Key Features:
Thin and lightweight
Excellent printability
Provides good cushioning for small, lighter items
Why Businesses Choose E-Flute:
Sleek and premium appearance
Ideal for small retail cartons
Great for brands needing crisp printing and branding
2. B-Flute (≈2.5mm – 3mm thick)
Best for: E-commerce packaging · General shipping · Food delivery boxes
Key Features:
Stronger than E-flute
Good crush resistance
One of the most commonly used flutes in Singapore
Why Businesses Choose B-Flute:
A good balance between strength and cost
Suitable for most single-wall shipping cartons
Performs well for local courier delivery
3. C-Flute (≈3.5mm – 4mm thick)
Best for: Bulkier items · Fragile products · Industrial packaging
Key Features:
Thicker and more shock-absorbent
Better stacking strength compared to B-flute
Why Businesses Choose C-Flute:
Excellent for products needing extra cushioning
Ideal for items that may face rough handling
Often used in retail appliances and industrial goods
Double-Wall Fluting: EB vs BC
For businesses shipping heavier items or needing high durability, double-wall corrugated boxes combine two different flutes into one structure.
1. EB Double Flute (E + B)
Best for: Premium shipping · Electronics · Export packaging
Key Features:
Thin but very strong
Smooth printing surface (due to E-flute)
Added strength (from B-flute beneath)
Why Businesses Choose EB:
Strong but not bulky
Ideal for premium unboxing experiences
Protects fragile and mid-weight products
2. BC Double Flute (B + C)
Best for: Heavy, fragile, or bulky items · Warehousing · International shipments
Key Features:
High stacking strength
Exceptional shock absorption
The strongest commonly used double-wall combination
Why Businesses Choose BC:
Used for large, bulky, or heavy items
Ideal for export, long-distance shipping, and pallet shipments
Reduces risk of puncture and crushing
Corrugated Flute Comparison Table (At a Glance)
Flute Type | Thickness | Strength | Print Quality | Best For |
E-Flute | Thin (1.2–1.5mm) | Light | Excellent | Retail boxes, cosmetics, food packaging |
B-Flute | Medium (2.5–3mm) | Strong | Good | E-commerce shipping, F&B delivery |
C-Flute | Thick (3.5–4mm) | Stronger | Moderate | Fragile/bulky items |
EB Double Flute | Medium-Strong | Very strong | Smooth | Electronics, premium packaging |
BC Double Flute | Thick/Heavy | Extremely strong | Moderate | Industrial goods, heavy items, export |
How to Choose the Right Flute for Your Packaging
Here’s a quick guide to help you decide:
1. Product Fragility
High fragility → C-flute, EB, or BC
Low fragility → E-flute or B-flute
2. Product Weight
Heavy items → BC double wall
Medium items → B-flute or EB
Light items → E-flute
3. Branding & Print Quality
Crisp, high-definition printing → E-flute or EB
4. Shipping Distance
Local Singapore delivery → B-flute
International / high handling → BC
5. Budget
Cost-friendly → B-flute
Premium feel → E-flute or EB
Why Fluting Matters for Singapore Businesses
Singapore’s logistics environment is fast, dense, and competitive. Using the right fluting:
Reduces product damage
Prevents crushing during courier handling
Improves stacking during warehousing
Enhances customer unboxing experiences
Optimizes shipping cost vs protection balance
With the right carton specs, businesses save money on returns, reduce wastage, and deliver a better customer experience.
FAQs About Corrugated Carton Box Fluting in Singapore
Q1: Which flute is best for shipping cartons?
Most Singapore brands use B-flute for e-commerce and BC double wall for heavier items.
Q2: Which flute has the best printing results?
E-flute and EB double flute offer the smoothest surface for high-quality prints.
Q3: Are double-wall boxes necessary for local deliveries?
For heavy, fragile, or bulky items — yes. For light products, single-wall is sufficient.
Q4: Can I customize my fluting type?
Yes — CL Packaging offers custom sizing, fluting choices, thickness options, and printed branding for bulk enquiries (above 10,000 boxes).
Conclusion
Choosing the right corrugated fluting is one of the most important decisions in your packaging strategy. Whether you need E-flute for premium retail, B-flute for everyday shipping, or BC double wall for industrial strength, the right structure ensures your products arrive safely and your brand looks professional.
At CL Packaging, we help businesses across Singapore find the perfect corrugated box for their products — balancing strength, cost, and brand requirements.
Looking for reliable corrugated carton boxes in Singapore? Explore CL Packaging’s range of carton boxes — or speak with us for a customised solution built around your products.
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