Gable Restraint System
ITW Construction Products’ Cullen brand has been a leader in timber engineering connectors for over 40 years. In collaboration with industry partners, Cullen has developed the Gable Restraint System (GRS) featuring the Gable Restraint Bracket and restraint straps. This system ensures secure
transferring lateral wind loads safely into the braced roof diaphragm. Fully compliant with Building Regulations, NHBC Standards, and Scottish regulations, the GRS is a trusted, NHBC-accepted solution underwritten by ITW Construction Products when installed per our detailed guidance.
connections between timber gables and masonry walls,
For wall tie, panel jointing & cavity tray details see our Gable Restraint System Technical Guide.
Please note the GRB forms part of a system and must be used in conjunction with the system straps and fixings as shown below.
The Gable Restraint System is comprised of the following specified products:
VRS-900-100
GRB-100
Patent: EP567179
Establishes a verified connection between a timber gable and a masonry wall.
Provides a secure method of fixing wall plates to timber and masonry walls.
RST-3
PFS-1500-100-B
FT: The Timber Frame Wall Tie
A high-performance strap developed to resist uplift and provide lateral restraint for timber gables.
Delivers superior performance and exceptional flexibility, ideal for lateral restraint in floor and roof applications.
Restrains the external blockwork or brickwork back to the timber frame structure.
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 13
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