Herringbone Joist Strut HB450 provides the means to prevent sideways movement or the buckling of joists, a simple alternative to the labour intensive traditional timber noggins. Made from galvanised steel EN 10346 DX51D Z275. Joint centres - 400mm, Strut length - 480mm. Meets bracing requirements for long span domestic floors. In the interest of safety all corners are rounded. Only three sizes are needed to suit all standard nominal joist centres. Only two fixings per end are required.