Here are just a few reasons-

Easier and lighter to handle and fix – Friendlier on the environment; stores carbon rather than emitting it – Uses NZ’s only renewable construction material; plantation timber – Uses 14 times less energy to produce than equivalent steel beam – Superior Fire Resistance compared to steel – Lower maintenance; Glulam does not rust or corrode – Cost effective; no boxing in or covering as with steel beams – Appearance; natural warmth and beauty of timber cannot be reproduced in steel or concrete; will not buckle or distort in response to temperature changes – Direct fixing of plates, joists and other connections is much easier.