PRODUCTS
RB-JHI
RB-JHI
Rapid Build Masonry Joist Hanger
The RB–JHI hanger is a timber to masonry hanger range designed for use with I–joists, open web and solid timber joists/trusses. The RB–JHI combines the standard JHI hanger with a reinforced top plate to provide a superior level of performance.
Z600
Galvanised Mild Steel
Up to 39.60kN
Application Dependant
Floor can be loaded after 3 days of curing for supporting blockwork
Reduction in curing time by 25 days for improved speed of the build process
House can be constructed from the inside removing working at height risks

Paslode 3.4 x 35mm Electrogalvanised Square Twist Nail
Cullen products have been tested and CE marked to the requirements of ETAG015 using 3.4 x 35mm square twist nails.
All Applications
Enhanced Uplift
- Fixings into the incoming joist/truss are required to resist uplift
- Increased uplift figures can be achieved by nailing the additional triangular nail holes into incoming member
- Web stiffeners required for I–Joists, 2No end blocks required for Open Web Joists & minimum bottom chord depth/vertical required for trusses
- Requires minimum full storey of masonry above to achieve values
Steel Connections
Guidance
All hangers in this range do not provide restraint, therefore restraint straps may be required for joist applications
Floor can be propped with acroprops and fully decked but must not be fully loaded until the masonry above has fully cured
No masonry is required above the hanger - unless stated for increased load capacity.
The masonry supporting the hanger must be cured for 3 days prior to loading the floor.
Installation Guidance
Explore the step-by-step RB-JHI installation video
The video demonstrates best practice on site, highlighting each stage of the installation process to help ensure accuracy, consistency, and compliance during fitting.
Support you can rely on
Expert technical guidance and customer service, from design to site.