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The sleeved system is the most popular and widely specified system for buildings of 2 bays or more.
Single span with staggered sleeve arrangement
End bay
Note that purlins are always single bay length with sleeved joint on penultimate rafter.
Single / double span with staggered sleeve arrangement
End bay
Note that purlins are always single bay length with sleeved joint on penultimate rafter.
For more information, refer to pages 8 – 9 of our online Z Purlin brochure or contact our technical team.