Tree protection barrier construction / tree fence

Specifications for Construction

1. 1.2 m (~4’) height;

2. 2"x 4"s to be used for vertical posts, top and bottom rails and cross-bracing (in an "X"); round, un-treated vertical posts may be used with a minimum diameter of 9 cm 3. Spacing between vertical posts to be no further apart than

3. Structure must be sturdy with vertical posts driven firmly into the ground.

4. Continuous plastic mesh screening (e.g. orange snow fencing).

5. Posted with visible signage advising that encroachment inside the protected area is forbidden.

6. Located at distances based on tree diameter,

Roughly DBH in centmeter (diameter at breast height) divide by 16.6
for example: 16.6cm, the distance is 16.6/16.6=1 meter

If you have good ideas, let me know, thanks