A Complete Guide to Bondek Thickness and Its Functions

Bondek is an essential material in modern construction, particularly for concrete floor slabs or roofs. This material is known for speeding up the construction process, strengthening structures, and providing a neater finish. However, many people still don't understand that Bondek thickness significantly impacts the strength and function of the structure.

To avoid making the wrong choice, here's a complete guide to Bondek thickness and its function in construction projects.

1. What is Bondek?
Bondek is a corrugated galvanized steel sheet that functions as permanent formwork in concrete floor casting. After the concrete dries, Bondek remains attached beneath the floor slab and serves to strengthen the building structure.

This material is very popular because it:

• Speeds up the casting process,
• Saves scaffolding,
• Produces a neat concrete subsurface,
• And increases cost and time efficiency.

2. Common Bondek Thickness Options on the Market
Bondek is available in various thicknesses, and the choice depends on the structural load and the floor area to be worked on. The following are the most commonly used thicknesses:

Bondek Thickness	Common Applications
0.65 mm	Suitable for residential houses and light structures
0.75 mm	Used for two-story buildings or medium-load areas
1.00 mm	Ideal for multi-story buildings, parking areas, or heavy-load floors

The thicker the Bondek, the stronger the bearing capacity of the concrete and the loads above it.

3. Bondek's Function in Building Structures
Bondek not only serves as a casting base, but also has important structural roles, namely:

• Resisting the load of wet concrete during casting,
• Reducing the need for scaffolding,
• Serving as additional tensile reinforcement,
• Increasing floor stiffness after the concrete hardens.

Furthermore, its corrugated surface also improves the adhesion between the concrete and galvanized steel, making the structure more stable and durable.

4. Tips for Choosing the Right Bondek Thickness

Before purchasing Bondek, be sure to consider:

• The type of building (house, shophouse, or multi-storey building),
• The floor load to be supported,
• Technical specifications from the structural designer,
• And of course, product quality and SNI certification.

Use Bondek with a high-quality galvanized coating to resist rust and corrosion, especially for projects in humid areas or near the coast.

Conclusion
Determining the right Bondek thickness is a crucial step in ensuring the strength and safety of concrete floor structures. Good-quality Bondek not only speeds up construction work but also provides an efficient, neat, and durable end result.

💡 Use quality Bondek from PT Intisumber Bajasakti (ISBS) — a trusted supplier of SNI-compliant building materials and steel for various projects throughout Indonesia.

📞 Phone: 021-66675999
🌐 Website: intisumberbajasakti.com
✉️ Email: info@intisumberbajasakti.com

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