🏗️ Lysaght BONDEK® II
🔩 High-Strength Composite Steel Floor Decking System for Modern Construction
Lysaght BONDEK® II is a high-performance composite steel floor decking system designed to function as both permanent formwork and structural reinforcement for concrete slabs. It is widely used in residential, commercial, and industrial construction due to its ability to speed up work, reduce labour, and improve overall slab strength.
In today’s construction environment, where time, cost, and quality are critical, BONDEK® II offers a smarter alternative to traditional timber formwork systems. Contact Buildmate Home Living Sdn. bhd.
📌 What is BONDEK® II? (Easy Explanation)
BONDEK® II is a ribbed steel sheet decking installed across steel beams before concrete is poured.
👉 It performs two important roles:
1️⃣ Supports wet concrete and construction loads during installation
2️⃣ Becomes part of the slab after concrete hardens
This creates a composite slab system, meaning the steel deck and concrete work together structurally. The result is a stronger, more efficient floor system compared to conventional methods.
📦 Detailed Technical Specifications
Understanding the specifications helps you see why BONDEK® II performs so well on-site.
🧱 Material & Steel Quality
- Steel Grade: G550 high tensile steel
- Coating: ZINCALUME® AZ150 (150 g/m² coating mass)
- Corrosion Resistance: Excellent protection against rust and humidity
- Certification: SIRIM ECO certified recyclable steel
👉 This ensures durability even in Malaysia’s humid climate. Catalog
📐 Profile Geometry
- Effective Cover Width: ~600 mm
- Rib Height: ~50 mm deep profile
- Profile Type: Trapezoidal rib with embossments
The deep rib design improves structural strength, while the embossments create a strong mechanical bond with concrete.
📏 Thickness & Weight
- Available Thickness (BMT):
✔ 0.75 mm
✔ 1.00 mm - Approximate Weight:
✔ 0.75 mm → ~7–8 kg/m²
✔ 1.00 mm → ~9–10 kg/m²
👉 Lightweight for handling, yet strong enough for structural use.
📊 Structural Performance & Span Capability
BONDEK® II is designed to support:
✔ Wet concrete load
✔ Construction load (workers, equipment)
✔ Long-term service load
📈 Typical Span Range:
- Unpropped: ~3.0 m – 4.5 m
- Propped: up to ~6.0 m or more
👉 Actual span depends on:
- Slab thickness
- Reinforcement design
- Load requirements
⚠️ Always follow engineer calculations and official span tables.
🧱 Composite Slab Performance
BONDEK® II enhances slab performance through:
✔ Strong bonding between steel and concrete
✔ Reduced cracking risk
✔ Improved load distribution
👉 This results in:
- Higher structural efficiency
- Longer service life
- Better overall slab quality
⭐ Key Advantages
⚡ Faster Construction
No need for traditional timber formwork — install decking and pour concrete directly.
💰 Cost Saving
Reduces:
- Labour cost
- Material usage
- Construction time
🦾 High Strength
Deep rib profile and high tensile steel provide strong support.
🔗 Excellent Bonding
Embossments ensure effective composite action with concrete.
🪶 Lightweight & Easy Handling
Simplifies transportation and installation on site.
🛡 Durable & Corrosion Resistant
ZINCALUME® coating protects against:
✔ Rust
✔ Moisture
✔ Harsh site conditions
🏢 Common Applications
BONDEK® II is widely used in:
🏢 Office buildings
🏬 Shopping malls
🏠 Residential apartments
🏭 Industrial facilities
🅿️ Car parks and podium decks
👉 Suitable for both small and large construction projects.
🔧 Installation Overview
1️⃣ Place decking across beams
2️⃣ Fix using screws or welding
3️⃣ Install reinforcement mesh if required
4️⃣ Pour and compact concrete
5️⃣ Allow curing — decking becomes permanent
📊 BONDEK® II vs Traditional Formwork
| Feature | BONDEK® II | Timber Formwork |
|---|---|---|
| Speed | Fast | Slow |
| Labour | Low | High |
| Structural Role | Yes | No |
| Cost Efficiency | Better | Lower |
Why It’s Ideal for Malaysia
Construction challenges in Malaysia include:
- Labour shortage
- Tight deadlines
- Cost control
BONDEK® II helps solve these by:
✔ Faster installation
✔ Reduced manpower
✔ Reliable performance in humid weather
❓ People Also Ask ( FAQ)
💬 What is BONDEK® II used for?
It is used as a steel decking system for supporting and reinforcing concrete slabs.
💬 What thickness is available?
Commonly 0.75 mm and 1.00 mm BMT.
💬 How far can it span?
Typically 3 m to 6 m+, depending on design and loading.
💬 Does it require propping?
Depends on span and design — some cases may reduce or eliminate propping.
💬 Is it suitable for Malaysia weather?
Yes. ZINCALUME® coating provides excellent corrosion resistance.
🏁 Final Conclusion
For contractors and developers looking for a faster, stronger, and more efficient slab construction system, Lysaght BONDEK® II is a reliable and proven choice.
It delivers:
✔ Faster construction time
✔ Reduced labour and cost
✔ Strong composite slab performance
✔ Long-term durability
✔ Eco-friendly certified material
👉 A smart solution for modern construction projects in Malaysia.
