Talked to our local building dept, they said the only requirement is that it be secure (i.e. the fence cant just be lifted out of the gorund) and there be no gaps larger than where a 4" sphere can fit thru.

The mesh is something like a safety cover mesh.......so the openings are very fine.

It goes from ground level to top of fence, with no space between the ground and the bottom of the fence.

The sections join to each other with latches and locks secure the latches from opening, which prevents the fence from being lifted out of the ground.

It meets (and exceeds) most of the building dept (and insurance) requirements. I just wasnt sure how long it would last. I have some spots where I wanted to put the fence that dont have concrete under them........the fence co. said I could use PVC as a "sleeve" for the fence section post.........but I cant see how well a PVC sleeve driven into the ground will hold up.

-Chris