Treetec / Narrow Door Hollow

Treetec design - "Narrow Door" introduced wildlife hollow. Rough barked tree.
Treetec design – “Narrow Door” introduced wildlife hollow. Rough barked Tree.

Our Treetec team have developed this methodology over some years of experimentation.  It provides a range of advantages and eliminates a few problems but it’s still a work in progress.  The narrow width reduces wound impact whilst allowing generous internal dimensions, these doors reduce issues related to ventilation, drainage and longevity.

A narrow slot is cut into the tree, the wider internal cavity is then created with a chainsaw or other tools and then a pre-made door is fitted.  This methodology allows enough access for internal excavation but keeps the wound narrow which is a key issue for protecting tree structural integrity. We’ve installed thousands of these cavities.

Treetec Narrow Door introduced wildlife hollow. Wound has callused over the door on a large Grey Box tree.
Treetec Narrow Door introduced wildlife hollow. Wound has callused over the door on a large Grey Box tree.

In partnership with ARI (DELWP) as part of a research project we’ve installed over 100 Treetec Doors into fast growing Mountain Ash of the Central Highlands Victoria, these hollows were designed to suit Leadbeater’s Possums.  The research on occupancy, cavity microclimate and tree response is ongoing.

Treetec arborist working at height in large tree to cut an introduced chainsaw hollow for wildlife.
Treetec arborist working at height in large tree to cut an introduced chainsaw hollow for wildlife.

Treetec arborists and ecologists can come and assess your property for a range of potential hollow sites dependant on your property parameters and species present. No 2 sites are the same and we will work with you to deliver the best outcomes using a variety of introduced hollow and nest/log box techniques. Contact us for more information.