Accuracy in reinforcement placement is fundamental to any concrete structure. Even small mistakes in cover can affect long-term performance, which is why components such as plastic spacers play a crucial role. They help maintain the required distance between reinforcement and formwork, supporting structural consistency from the first pour to project completion.
At Danterr, we work across civil, commercial, and state significant infrastructure. Our range of bar chairs is designed to support precise reinforcement positioning, helping you meet specification requirements with confidence.
What Are Plastic Spacers?
Plastic spacers are purpose-made components that support reinforcement mesh and rebar during concrete placement. By holding steel at the required cover depth, they help prevent corrosion, improve concrete performance, and maintain structural alignment.
Whether working with single-layer mesh, multi-level reinforcement cages, or deep forms, reinforcement chairs provide the spacing accuracy required for sound construction. Their non-corrosive composition, light weight, and compatibility with a range of bar diameters make them a widely preferred option across the industry.
Benefits of Using Plastic Spacers
- Durability and Longevity: Made from high-quality plastic, our spacers are corrosion-resistant and have chemical reactions, ensuring long-term performance.
- Precision and Stability: Ensures rebar remains in the correct position, maintaining the structural integrity of the concrete.
- Ease of Use: Lightweight and easy to install, reducing labour time and increasing efficiency on-site.
- Cost-Effective: Provides an affordable solution for maintaining rebar placement without compromising quality or performance.
Types of Plastic Spacers Available at Danterr
At Danterr, we offer a comprehensive range of plastic spacers designed to meet the diverse needs of your construction projects:
Combination SOG Bar Chairs: provide dual-height support, helping position rebar correctly in slab-on-ground applications. Their open design supports easy handling and placement on-site.
Benefits:
- Ensures accurate positioning and support for rebar in horizontal placements.
- Lightweight and stackable design for easy handling.
- Rust-proof for long-term durability.
- Dual-height options for increased application flexibility.
Technical Specifications:
- Available Sizes: 25/40mm, 50/65mm, 75/90mm, 85/100mm, 105/110mm, 115/120mm, 125/130mm, 135/140mm, 145/150mm.
- Base Plates: Available for extra stability (200mm).
- Bag Quantity: 100 per bag.
Combination SOG Bar Chairs with Cliptop speed up mesh installation by allowing the chairs to clip onto reinforcement while flat. As the mesh is raised, the chair rotates into position, helping reduce labour time.
Benefits:
- Dual-height capability
- Made from recycled plastic
- Safe for membrane installations
Technical Specifications:
- Available Sizes: 25/40mm, 50/65mm, 75/90mm, 85/100mm
- Bag Quantity: 100
Deck Rail Chairs support reinforcement in suspended decks, bridges, and elevated platforms. They help maintain correct spacing while allowing for fast installation.
Benefits:
- Ideal for elevated decks and platforms.
- Offers stable support and precise spacing for deck reinforcement.
- Easy to install, reducing labour time.
Technical Specifications:
- Available Sizes: 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 90mm, 100mm All by 750mm.
- Base Plates: Available for extra stability (740 x 90mm).
- Bag Quantity: 100 per bag.
Fast Clip Bar Chairs feature a clip-on head for quick reinforcement support positioning. They are widely used in applications requiring rapid installation.
Benefits:
- Quick and easy installation with a clip mechanism.
- Enhances efficiency in various construction settings needing rapid deployment.
- Ensures secure rebar positioning.
Technical Specifications:
- Available Sizes: 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm, 65mm, 75mm
- Base Plates: Available for extra stability (15mm).
- Bag Quantity: 100 per bag.
Pile Cage Foot provides robust support for vertical rebar in pile construction, ensuring stable positioning at the base of pile cages.
Benefits:
- Offers robust support for vertical rebar in pile construction.
- Ensures stable positioning at the base of pile cages.
- Durable and reliable for heavy-duty applications.
Technical Specifications:
- Available Sizes: 85mm, 100mm, 150mm.
- Bag Quantity: 100 per bag.
Pile Cage Wheel (Closed Helix): The Closed Helix Pile Cage Wheel ensures precise alignment and spacing of rebar within pile cages, ideal for high-precision projects.
Benefits:
- Ensures precise alignment and spacing of rebar within pile cages.
- Ideal for high-precision projects.
- Easy to install, reducing setup time.
Technical Specifications:
- Available Sizes: 65mm, 75mm, 80mm, 85mm, 100mm.
- Bag Quantity: 100 per bag.
Pile Cage Wheel (Heavy Duty): Heavy Duty Pile Cage Wheels are designed for demanding pile construction projects, providing enhanced stability and support.
Benefits:
- Designed for more demanding pile construction projects.
- Provides enhanced stability and support.
- Suitable for heavy-duty applications.
Technical Specifications:
- Available Sizes: 25mm, 35mm, 40mm, 50mm, 65mm, 75mm, 80mm, 85mm, 90mm, 100mm.
- Bag Quantity: 100 per bag.
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Pile Cage Wheel (Standard): Standard Pile Cage Wheels are suitable for general pile construction needs, ensuring consistent rebar alignment.
Benefits:
- Suitable for general pile construction needs.
- Ensures consistent rebar alignment.
- Reliable and easy to use.
Technical Specifications:
- Available Sizes: 25mm, 50mm, 75mm.
- Bag Quantity: 100 per bag.
Circular Spacers provide 360-degree reinforcement. Their open design supports concrete flow and reduces void formation.
Benefits:
- Holds reinforcement securely without twisting
- Supports even spacing around cages and bars
- Suits varying bar sizes with a sleeve-based design
Technical Specifications
- Available Sizes:
- 15mm, 20mm, 25mm, 65mm, 75mm: Bar size 8–12mm
- 30mm, 40mm, 50mm: Bar size 8–16mm
- Bag Quantity: 100
Tall SOG Bar Chairs are designed for thicker concrete slabs, providing extra height to maintain the correct rebar position in deep sections.
Benefits:
- Designed for thicker concrete slabs.
- Provides extra height to maintain the correct rebar position in deep concrete sections.
- Durable and rust-proof for long-term use.
Technical Specifications:
- Available Sizes: 100mm, 110mm, 120mm, 130mm, 140mm, 150mm.
- Bag Quantity: 100 per bag.
Top Deck Chairs provide optimal support for top-level rebar in multi-layer concrete slabs, enhancing stability and alignment.
Benefits:
- Ensures optimal support for top-level rebar in multi-layer concrete slabs.
- Enhances stability and alignment in complex reinforcement structures.
- Lightweight and easy to handle.
Technical Specifications:
- Available Sizes: 100/110mm , 120/130mm, 140/150mm, 160/170mm, 180/190mm, 200/210mm, 220/230mm, 240/250mm, 270/280mm, 290/300mm, 310/320mm, 330/340mm.
- Bag Quantity: 100 per bag.
Bottom Deck Chairs support reinforcement mesh and rebar at the base of slab-on-ground and precast forms. Made from UV-stabilised plastic, they help maintain spacing requirements with minimal effort.
Benefits
- Non-corrosive and suitable for site conditions
- Suitable for civil and commercial slab works
- Provides clear, consistent spacing under reinforcement
Technical Specifications:
- Available Sizes: 20/25mm, 25/30mm, 30/40mm, 35/40mm, 35/45mm, and 45/50mm
- Bag Quantity:
- 600 per bag: 20/25mm
- 100 or 500 per bag: 25/30mm
- 100 per bag: 30/40mm, 35/40mm, 35/45mm, and 45/50mm
Trench Mesh Supports position reinforcement mesh in trench foundations and narrow footings. They help maintain spacing across long trench runs, supporting consistent reinforcement depth before pouring.
Benefits:
- Suited for trench reinforcement and mesh placement
- Helps prevent mesh sagging during pours
- Corrosion-resistant composition
- Suitable for multiple bar sizes
Technical Specifications
- Available Sizes: 8–12mm and 16mm bar supports
- Bag Quantity: 25
Panel Chairs Bar Chair support reinforcement in tilt-up panels. Their four-leg base helps minimise movement during setup while maintaining consistent cover.
Benefits:
- Four-leg base enhances stability
- Clip-on head for efficient installation
- Leaves minimal contact marks
Technical Specifications:
- Available Sizes: 30/40mm, 50/60mm, 65/75mm, and 90/100mm
- Bag Quantity: 100
Applications of Plastic Spacers
Combination SOG Bar Chairs
- Supporting reinforcement in slab-on-ground concrete pours
- Maintaining correct cover for mesh and rebar
- Assisting where dual-height plastic spacers are required
Deck Rail Chairs
- Aligning reinforcement in suspended decks and platforms
- Supporting mesh placement along long deck runs
- Providing consistent spacing where reinforcement chairs are needed
Fast Clip Bar Chairs
- Quick placement of rebar in high-volume concrete works
- Supporting mesh and bar layouts in commercial slabs
- Assisting with fast installation where clip-on bar chairs are preferred
Pile Cage Foot
- Supporting vertical bars at the base of pile cages
- Maintaining cover in deep foundation works
- Stabilising rebar during cage setup
Pile Cage Wheel – Closed Helix
- Centring rebar within pile cages
- Achieving correct cover in precision piling applications
- Assisting alignment in circular reinforcement setups
Pile Cage Wheel – Heavy Duty
- Supporting reinforcement in large-diameter piles
- Maintaining cage alignment in demanding civil works
- Assisting stability during cage lifting and installation
Pile Cage Wheel – Standard
- Providing spacing for everyday piling applications
- Supporting reinforcement in medium-depth piles
- Helping maintain consistent cover during concrete placement
Tall SOG Bar Chairs
- Supporting reinforcement in thicker slab-on-ground pours
- Maintaining elevated cover for deeper slab designs
- Assisting bar height consistency in industrial slabs
Top Deck Chairs
- Supporting upper reinforcement layers in multi-layer slabs
- Assisting in suspended slab reinforcement placement
- Maintaining spacing across complex reinforcement systems
Trench Mesh Supports
- Elevating trench mesh in narrow footings
- Supporting mesh alignment during trench pours
- Preventing movement or sagging under wet concrete
Bottom Deck Chairs
- Supporting reinforcement at the base of slab-on-ground applications
- Assisting mesh and bar placement in precast production
- Maintaining consistent cover in civil and commercial slabs
Circular Spacer
- Providing 360° cover around rebar in columns and round elements
- Supporting reinforcement in precast components
- Allowing concrete to flow around bars in conduits and pipe encasements
Combination SOG Bar Chairs with Cliptop
- Supporting fast mesh installation in SOG applications
- Assisting reinforcement placement with dual-height capability
- Reducing handling during setup with clip-on functionality
Panel Chairs Bar Chair
- Supporting reinforcement in tilt-up and precast panels
- Maintaining bar cover in suspended slab applications
- Providing stable support during formwork preparation
Why Choose Danterr’s Plastic Spacers?
- Expert Support: We understand the complexities of reinforcement placement and help identify the most suitable spacer for each pour.
- Quality-Focused Supply: Our products are selected to meet industry expectations and assist teams in maintaining consistent cover.
- Sustainability Matters: Where possible, we offer options produced from recycled materials, aligning with more sustainable construction practices.
Projects Utilizing Danterr Plastic Spacers
- WSA Terminal Project – The Western Sydney Airport terminal is a nationally significant aviation development designed to support long-term passenger growth and regional connectivity. The project involves extensive concrete works delivered under demanding performance and quality requirements.
- Sydney Metro – Sydney Metro is Australia’s largest public transport infrastructure program, delivering new rail lines, stations, and supporting structures across the city. The project requires consistent reinforcement solutions to support large-scale concrete construction across multiple packages.
- Sydney Light Rail – Sydney Light Rail is a completed urban transport project that improves connectivity across central and south-eastern Sydney. The project involved complex concrete construction within constrained city environments and high public interface areas.
Conclusion
Plastic spacers are widely used in construction processes as the reliable support and gap for rebar for concrete constructions. At Danterr, we offer a diverse range of high-quality plastic spacers tailored to meet the specific needs of your project. By choosing our products, you are investing in durability, precision, and efficiency, ensuring the success of your project.
Explore our wide range of plastic spacers and enhance your construction projects with the best quality products in the market. Ensure your projects are built to last with Danterr’s innovative solutions. Contact Danterr Today!
📞: 1800 262 383
📧: [email protected]
Frequently Asked Questions:
Plastic spacers are critical because they ensure that rebar remains correctly positioned throughout the concrete pour, which is essential for maintaining the structural integrity of the concrete. Properly placed rebar reinforces the concrete, preventing cracks and weaknesses that could lead to structural failure over time.
Plastic spacers offer several advantages: they are resistant to corrosion, lightweight, and easy to install, which saves time and labour costs. Unlike metal spacers, plastic does not react with concrete, ensuring long-term durability and maintaining the structural integrity of the construction.
Yes, Plastic spacers are versatile and can be used in a wide range of construction projects, including residential, commercial, and industrial applications. They are suitable for use in slab-on-ground, elevated decks, walls, columns, and pile constructions, providing essential support and spacing for rebar in various settings.
Fast Clip Bar Chairs feature a unique clip mechanism that allows for quick and secure installation of rebar. The clips snap onto the rebar, holding it firmly in place and ensuring it remains correctly positioned throughout the concrete pour. This design simplifies installation and enhances overall project efficiency.
Yes, Plastic spacers are made from high-quality materials that are designed to withstand a variety of weather conditions. They are resistant to corrosion and chemical reactions, ensuring they maintain their integrity and continue to provide effective rebar support even in harsh environments.
Top Deck Chairs are designed to provide optimal support for the top layer of rebar in multi-layer concrete slabs. They ensure that the top rebar is held firmly in place, maintaining proper spacing and alignment, which is crucial for the structural integrity of complex reinforcement structures. This stability enhances the overall strength and durability of the slab.
When selecting a Plastic spacers, consider the specific requirements of your construction project, such as the type and thickness of the concrete, the size and spacing of the rebar, and the load-bearing capacity needed. Additionally, assess the environmental conditions and any specific performance criteria to ensure you choose a spacer that meets all project demands.
While Plastic spacers are designed for durability, they are typically intended for single-use to ensure maximum performance and integrity. Reusing spacers can compromise their ability to maintain correct rebar positioning, which may affect the structural integrity of the concrete. It is best to use new spacers for each project to guarantee optimal results.
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