Cullen Restraint Straps Technical Guide 2025

Restraint Straps by Cullen Cullen’s restraint straps are engineered for durability and performance, offering essential structural stability across various applications. Interdependent tested to the requirements of BS EN845-1, accepted by the NHBC and compliant with Approved Document A of the UK Building Regulations, these straps meet the highest standards for safety and load resistance in residential and commercial builds. Whether for securing timber or masonry structures, our restraint straps provide effective, code-compliant solutions for preventing lateral movement in walls, floors, and roofs. With rigorous testing and certification, Cullen restraint straps are designed to ensure ease of installation, reliability, and long-term stability.

PFS

PS RANGE

Delivers superior performance and exceptional flexibility, ideal for lateral restraint in floor and roof applications.

The PS range provides required parallel restraint to block work for joist hangers and, where required, build–in details.

RST

VRS

The VRS is an engineered strap that has been designed to provide a convenient and secure method of fixing wall plates to timber and masonry walls.

A high-performance strap developed to resist uplift and provide lateral restraint for timber gables.

Compliance The information we provide has been compiled using the minimum requirement from Building Regulations 2010 approved document A, Scottish Building regulation domestic, NHBC standards.

The latest version of the technical guide will always be the digital format on our website.

Technical support: 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk 2

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