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Purlin Tie

Strong timber connector for fixing large timber purlins and battens to trusses and rafters

Pre-punched and formed galvanised steel connectors that are:
Easy to install and provide an effective method of fixing large timber purlins to timber roof trusses or rafters.


Purlin splice

Fixing per legAllowable wind load per purlin tie (kN)
 Unseasoned TimberSeasoned Timber
  J2 J3 J4 JD3 JD4 JD5
3 Nails 5.4 3.8 2.7 5.4 3.8 3.1
With teeth 5.7 5.7 5.7 5.7 5.7 5.7

*Values in the table are for ONE 40mm or 80mm Purlin Cleat only

Fixing procedure with nails

  1. Fix purlin batten to the truss or rafter with 2/75mm x 3.05Ø nails.
  2. Nail both ends of the Purlin Tie to the truss or rafter
  3. Use 3/30mm x 2.8Ø Multinail nails to each leg.
  • Provide 2 purlin ties at purlin splices

Fixing procedure with teeth

  1. Fix purlin batten to the truss or rafter with 2/75mm x 3.05Ø nails.
  2. Hammer both sides of Purlin Tie teeth into rafter
  • Provide 2 purlin ties at purlin splices

NOTE: The capacities are derived from AS1720-2010 and are for uplift in houses where failure is unlikely to affect an area greater than 25m2. For primary elements in structures other than houses or elements in a house for which failure would be greater than 25m2 these capacities must be multiplied by 0.94. For primary joints in essential services or post disaster buildings multiply by 0.88. For 2/Purlin Tie the table values can be doubled.


Manufactured from 1.0mm Galvanised G300 Z275 Steel

DescriptionProduct CodeReference CodeCarton quantityCarton kg.
With nail holes 70mm TA99 PTN70 200 13.5
Without nail holes 70mm TA991 PTWH70 200 13.5
With Teeth 70mm TA993 PTT70 100 7.1
With Teeth 90mm TA994 PTT90 100 7.1
35mm Green Tip #12 Screw (TA221)