Scaffolding Steel Frame System Cross Brace (Diagonal X-Brace)

The Scaffolding Steel Cross Brace is a critical diagonal component designed to connect and secure main scaffolding frames, providing essential stability, rigidity, and safety to the entire temporary structure. By creating an “X” configuration between the frames, these braces prevent swaying and ensure that the scaffolding system remains perfectly plumb, level, and square.

Manufactured using high-quality Ф21.3mm carbon steel tubes, our cross braces are lightweight yet highly durable. Because cross braces are highly susceptible to wear and outdoor elements, we offer them in a variety of premium surface treatments, including Pre-galvanized, Electro-galvanized, Painted, and Powder Coated. Whether you are executing low-height outdoor repairs, indoor decorations, or large-scale masonry, our cross braces guarantee a secure and rigid working platform.

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scaffolding steel frame system cross brace (diagonal x brace)

Technical Specifications

We offer highly precise dimensions to ensure perfect fitment with your frame lock pins. Below are our standard pre-galvanized specifications:
Tube OD & Thickness Span × Height × Brace Length (mm) Unit Weight ( kg/pc )
Ф21.3 × 1.4mm 
(Pre-galvanized) 		1829 × 1219 × 2198 3.08
1829 × 914 × 2045 2.87
1829 × 610 × 1928 2.71
1219 × 1219 × 1724 2.43
1219 × 610 × 1363 1.94
Ф21.3 × 1.2mm 
(Pre-galvanized) 		1829 × 1219 × 2198 2.66
1829 × 914 × 2045 2.48
1829 × 610 × 1928 2.35
1219 × 1219 × 1724 2.10
1219 × 610 × 1363 1.67
Ф21.3 × 1.0mm 
(Pre-galvanized) 		1829 × 1219 × 2198 2.25
1829 × 914 × 2045 2.10
1829 × 610 × 1928 1.98
1219 × 1219 × 1724 1.78
1219 × 610 × 1363 1.41
(Note: A standard complete frame set requires 2 pieces of main frames, 2 pieces of cross braces, and 4 joint pins.)

Key Advantages

Absolute Structural Rigidity: The primary function of our cross braces is to provide diagonal tension. Engineered with high-strength Ф21.3mm carbon steel, they eliminate lateral movement (swaying) in the scaffold tower, protecting workers at high elevations.
Precision Engineering for Perfect Fit: The distance between the punched holes at the ends of the brace is calculated with zero-tolerance precision. This exactness guarantees that your scaffolding frames will stand 100% plumb (vertical) and square, making assembly effortless.
Optimal Strength-to-Weight Ratio: Offering wall thicknesses of 1.0mm, 1.2mm, and 1.4mm, our cross braces weigh between just 1.41kg and 3.08kg per piece. This lightweight profile reduces worker fatigue during repetitive assembly while maintaining strict safety factors.
Long-Lasting Rust Prevention: Friction at the connection points can quickly wear down standard paint. Our Pre-galvanized option provides a metallurgical zinc bond that effectively resists moisture, rain, and mechanical scraping, ensuring years of safe reuse.

Product Applications

Frame System Stabilization: Essential companion component for walk-through frames, mason scaffolding frames, H-frames, and Korean-type frames.
Exterior Facade Work: Provides anti-sway stability for workers performing outdoor painting, plastering, and window repairs.

Indoor Decoration & Maintenance: Secures mobile rolling towers (with caster wheels) used for indoor ceiling, electrical, and HVAC installations.
Masonry & Bricklaying: Prevents buckling when the scaffold is subjected to heavy loads of concrete and bricks.

Packaging & Delivery

High-Density Bundling: Due to their flat, elongated shape, cross braces are tightly stacked and bundled using high-tensile steel straps. This high-density packing prevents bending and scratching during transportation.
Container Optimization: We highly optimize the loading of cross braces alongside main frames within 20ft or 40ft HQ containers to ensure our buyers get the maximum amount of scaffolding material for the lowest freight cost per unit.
Efficient Export Hub: Dispatched directly from Tianjin, China, ensuring fast production-to-shipment lead times via the globally connected Xingang Port.

Frequently Asked Questions (FAQ)

Q: Why do I need cross braces for my scaffolding frames?
A: Without cross braces, a scaffolding frame tower lacks diagonal rigidity and can easily collapse laterally (sway) under weight or wind. Cross braces lock the main frames together, keeping them plumb, level, and square.

A: A standard single-bay scaffold framework assembly requires 2 pieces of cross braces (forming an “X” on both sides), combined with 2 main frames and 4 joint pins.

A: The correct cross brace size depends on two factors: the distance between the two main frames (Span, e.g., 1829mm) and the distance between the lock pins on the frame (Height). Please refer to our specification table or provide us with your frame dimensions, and our engineers will match the exact brace length (e.g., 2198mm) for you.

A: For outdoor construction and rental businesses, we highly recommend the Pre-galvanized or Powder Coated finish, as they offer vastly superior resistance to rust and weather corrosion compared to standard liquid paint.

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