450mm Timber to Timber Long Leg Galvanised Joist Hanger. Quick & easy to use hanger. Extended leg Joist Hanger provides a quick & simple solution for the deeper timber to timber applications such as loft conversions, supporting deeper floor joists, purlin connections & dropped or underslung floor support. Made from 1.2mm Pre Galvanised mild steel. Sheradised Square Twist Nails are recommended for the fixing of Joist Hangers & Wall Straps Technical Data Sheets