Simpson Strong-Tie Herringbone Joist Strut-4300

High-Performance Metal Strut for Long-Span Floor Joist Bracing

The Simpson Strong-Tie HSA Herringbone Joist Strut 4300 Series offers a fast, reliable and structurally superior alternative to traditional timber strutting. Engineered from pre-galvanised mild steel, it ensures effective lateral bracing in long-span domestic floor applications and complies with modern flooring requirements.

Key Features

• Steel Alternative to Timber Struts
  Eliminates the inconsistencies, delays, and extra labour associated with timber blocking or herringbone strutting.

• Precision Engineered
  Available in pre-sized options to suit joist spacings of 400mm, 450mm, and 600mm, ensuring accurate fit and installation efficiency.

• Long-Span Floor Support
  Designed to meet bracing requirements for domestic floors with spans exceeding 2.5 metres.

• Optimised Placement
  For joist spans over 4.5 metres, two rows of struts are recommended, positioned at 1/3 and 2/3 of the span for optimal bracing.

• Corrosion-Resistant
  Constructed from pre-galvanised mild steel, providing durable performance in protected floor zones.

Benefits

• Improved Floor Stability
  Reduces joist deflection and floor bounce, enhancing comfort and structural integrity.

• Time and Labour Saving
  Faster to install than traditional timber struts with no need for on-site fabrication or adjustment.

• Consistent Quality
  Factory-formed steel ensures uniform performance and reliable installation across the entire floor system.

• Meets Building Requirements
  Complies with UK standards for lateral restraint and bracing of timber floor joists in domestic construction.

 

Material Specification

Specification	Detail
Product Code	HSA-4300 Series
Material	Pre-galvanised mild steel
Joist Spacing Options	400mm, 450mm, 600mm
Recommended Use	For spans >2.5m (1 row) and >4.5m (2 rows)

Applications

• Bracing for domestic timber floor joists

• Long-span joist installations in new builds or renovations

• Mid-span lateral restraint in timber frame construction

Important Notes

• Always refer to Simpson Strong-Tie tables and installation guides for correct spacing and positioning.

• Ensure that installation is completed using approved fasteners and in line with building regulations.