https://sites.google.com/site/barredowlsite/owl-box-plans/octo_dims.png

Here is just a basic sketch of the current OwlWatch nest box.
See more images in Photo section.

I will be happy to answer any questions you might have. I may also be able to connect you to someone if you need help building your box.

Help with installation is always a wise choice. Three trimmers are logical helpers when it comes to ladder work, and not damaging your tree. 

NOTE:
If you are lucky enough to have owls in your yard, please respect their space. They will attack you if you come too close. Watch for dive bombing and beak snapping. Heed these warnings. Owls have been know to cause severe injuries to people that fail to heed the warnings.