In slab on ground construction, precision is critical. From reinforcement placement to concrete cover, small deviations can affect structural performance. Slab on Ground Bar Chairs (SOG bar chairs) play an essential role in maintaining correct reinforcement height, supporting compliance, and delivering consistent concrete outcomes across commercial, civil, and infrastructure projects.
At Danterr, we source and supply high quality SOG bar chairs designed to perform in demanding construction environments where safety, durability, and efficiency are essential.
What Are SOG Bar Chairs
SOG Bar Chairs, or Slab on Ground Bar Chairs, are reinforcement support spacers used to hold steel mesh and reinforcing bars at the correct height within concrete slabs. Their primary function is to maintain consistent concrete cover, protecting reinforcement from corrosion while supporting long term structural integrity. They are widely used across civil works, infrastructure projects, industrial slabs, and commercial construction where accurate reinforcement positioning is required prior to concrete placement.
Combination SOG Bar Chairs
Combination SOG Bar Chairs are designed to provide flexibility on site by offering two cover height options in a single chair. This makes them a practical solution where reinforcement requirements vary across a slab.
Key Features
- Dual height functionality: Supports two cover requirements with one product
- Stable support: Maintains reinforcement position during placement
- Ease of Use: Allows for quick and easy installation, reducing labour costs.
Technical Specifications:
- Material: Made from recycled plastic
- Available Sizes: 25/40mm up to 145/150mm.
- Optional Base Plate: Available in 200mm
- Compliance: Meets AS/NZS 2425:2015 compliance
Combination SOG Bar Chairs with Cliptop
Combination SOG Bar Chairs Cliptop build on the standard combination design by adding a cliptop feature that helps hold reinforcement securely in place during installation.
Key Features
- Cliptop function: Holds reinforcement securely to reduce movement
- Dual height design: Supports multiple cover requirements
- Membrane safe base: Wide flat base helps protect vapour barriers and prepared surfaces
Technical Specifications
- Material: Made from recycled plastic
- Available sizes: 25/40 mm up to 85/100 mm
- Optional base plate: 200 mm
- Compliance: Meets AS/NZS 2425:2015
Tall SOG Bar Chairs
Tall SOG Bar Chairs are designed for slab on ground applications where higher cover heights are required. They provide stable reinforcement support for thicker slabs and heavier reinforcement layouts.
Key Features
- Height support: Suitable for increased slab thickness and higher cover requirements
- Stable base: Designed to sit securely on prepared surfaces and membranes
- Rust-proof construction: Plastic material eliminates corrosion concerns on site.
Technical Specifications
- Load Test: Exceeds 500kg
- Sizes: 100 mm to 150 mm cover
- Mesh Compatibility: Up to 20mm diameter
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Applications of Slab on Ground Bar Chairs
Slab on Ground Bar Chairs are used across a range of construction environments where accurate reinforcement support and consistent concrete cover are required. Their practical design makes them suitable for projects with varying slab thicknesses, reinforcement layouts, and site conditions, including:
- Infrastructure slabs
- Civil and transport projects
- Industrial floor systems
- Commercial concrete slabs
- Precast and in-situ concrete works
How to Install SOG Bar Chairs
Tips for Effective Installation:
- Preparation: Ensure that the surface where the bar chairs will be placed is clean and free from debris for a stable base.
- Positioning: Place the Slab on Ground Bar Chairs at regular intervals according to your project’s reinforcement plan to maintain uniform support.
- Secure Placement: Ensure that bar chairs are securely positioned under the reinforcement bars to prevent movement during concrete pouring.
By following these tips, you can ensure that your reinforcement bars are properly supported, enhancing the overall quality and durability of your concrete slabs.
Projects Featuring SOG Bar Chairs
Danterr’s SOG Bar Chairs, also known as Slab on Ground Bar Chairs, have been supplied to major infrastructure projects across Australia, supporting large scale construction programs with demanding technical and delivery requirements.
- M6 Motorway – The M6 Motorway is a significant transport infrastructure project in Sydney, involving extensive tunnelling and surface works designed to improve connectivity across the city’s road network. The project reflects the scale and complexity of environments where Danterr construction products are specified.
- Sydney Metro West Central Tunnelling Package – The Sydney Metro West Central Tunnelling Package forms part of one of Australia’s largest public transport investments, delivering new underground rail infrastructure through central Sydney. The project highlights Danterr’s involvement in major urban infrastructure developments.
Conclusion
In the construction industry, reliable and efficient tools are essential. Danterr’s SOG Bar Chairs are durable, versatile, and sustainable, making them an invaluable asset for construction projects.
Danterr understands the unique challenges faced by the construction industry. Our expertise and commitment to modern construction allow us to deliver solutions that consistently meet civil standards while enhancing performance, safety, and build quality. Our SOG Bar Chairs demonstrate our dedication to delivering high-quality products. Explore our products and see how they can enhance your next project.
Contact Danterr today!
📞: 1800 262 383
📧: [email protected]
Frequently Asked Questions:
SOG Bar Chairs, or Slab On Ground Bar Chairs, are used in construction to support reinforcement bars in concrete slabs. They ensure the bars maintain the correct positioning during concrete pouring, enhancing the slab’s structural integrity. These chairs are crucial in preventing the reinforcement bars from shifting, which helps in maintaining the design specifications and strength of the concrete structure.
SOG Bar Chair are crucial because they keep reinforcement bars in place, preventing them from shifting during concrete pouring. This ensures the concrete structure’s strength and stability, reducing the risk of structural failure. Properly positioned reinforcement bars improve load distribution, minimize cracking, and enhance the overall durability of the concrete slab.
Yes, Combination SOG Bar Chair are versatile and can be used in various construction projects. These include residential and commercial buildings, infrastructure projects like light rail and tunnels, and industrial facilities. Their adaptability to different slab thicknesses and reinforcement requirements makes them suitable for a wide range of applications, ensuring consistent performance across diverse project types.
Plastic SOG Bar Chair are resistant to corrosion and weathering, ensuring long-term durability. They are also lightweight and easy to handle, which simplifies installation. Additionally, plastic bar chairs are cost-effective and environmentally friendly, as they can be made from recycled materials. Their non-conductive properties also prevent any potential interference with electrical currents in the concrete.
Ensure the surface is clean and free from debris before placing the bar chairs. This provides a stable base and ensures proper support for the reinforcement bars. Cleaning the surface removes any obstacles that might prevent the bar chairs from sitting evenly, which is essential for maintaining the correct position of the reinforcement bars throughout the concrete pouring process.
Yes, Combination SOG Bar Chairs are adaptable and can be used for both light and heavy-duty projects. This includes residential slabs and industrial concrete floors. Their robust construction ensures they can handle significant loads without deforming, making them suitable for high-stress environments as well as standard construction applications.
After positioning the bar chairs under the reinforcement bars, make sure they are stable and won’t move during concrete pouring. Proper placement is crucial for maintaining the integrity of the reinforcement setup. You can check the stability by gently pressing on the reinforcement bars; the chairs should hold firm without tipping or shifting. Secure placement ensures that the bars remain in the designed position, which is vital for the structural integrity of the concrete slab.
The number of bar chairs needed per sheet of mesh can vary depending on the size and spacing of the mesh, as well as the specific requirements of the project. Generally, bar chairs are placed at regular intervals, such as 4 to 6 chairs per square meter, to ensure adequate support and stability of the reinforcement bars.
For a 100mm slab, the appropriate size of bar chairs would typically be around 50/65mm. This size ensures that the reinforcement bars are positioned correctly within the slab, providing the necessary coverage and structural support required for the thickness of the slab.
The number of bar chairs needed per meter depends on the spacing required for the reinforcement bars and the specific design of the concrete slab. A common practice is to place bar chairs at intervals of 300mm to 500mm along the length of the reinforcement bars, which usually translates to about 2 to 4 bar chairs per meter.
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