Koelner Universal Rafter-Purlin Anchor 250x35 mm

The Koelner universal rafter-purlin anchor 250x35 mm is a professional-grade structural connector engineered for robust timber construction. Designed to provide a secure link between rafters and purlins, this component is essential for maintaining the integrity of roof framing systems. Its dimensions and material composition ensure that it can withstand the mechanical stresses typical in wooden roof structures, offering long-term stability for various building projects.

Advantages

This anchor offers exceptional structural reinforcement by effectively transferring loads between timber elements, which significantly enhances the overall rigidity of the roof frame. The universal design allows for versatile application across different types of rafter-purlin joints, simplifying the installation process for contractors. Constructed from high-quality materials, the anchor provides excellent resistance to environmental factors and mechanical wear, ensuring that the connection remains secure over the lifespan of the building.

Suitable for

• Securing rafters to purlins in residential roof construction
• Reinforcing timber joints in wooden frame structures
• Professional roof framing and renovation projects
• Structural timber connections requiring high load-bearing capacity

When it may not be suitable

This anchor is specifically designed for timber-to-timber connections and is not suitable for anchoring wood directly into concrete or masonry without appropriate adapters. It should not be used in environments with extreme chemical exposure that could compromise the integrity of the metal.

Key specifications

• Dimensions: 250x35 mm
• Material: High-strength structural steel
• Application: Rafter-purlin connection
• Quantity per package: 50 pieces

How to use

To install the rafter-purlin anchor, position the connector over the joint where the rafter meets the purlin. Ensure the anchor is aligned correctly to distribute the load evenly across the timber surfaces. Use appropriate structural nails or screws through the pre-drilled holes to fix the anchor firmly into both wooden members. It is critical to use the full number of fasteners as specified by local building codes to achieve the intended structural performance.

What to consider before purchase

• Verify the dimensions of your timber rafters and purlins to ensure compatibility with the 250x35 mm size.
• Check the total number of connections required for your project to determine the number of packages needed.
• Ensure you have the correct type of structural fasteners compatible with the anchor's hole diameter.

Usage recommendations

Always follow the structural design plans provided by a qualified engineer or architect when installing timber connectors to ensure compliance with safety standards and building regulations.