Bear proof

Please move this if this is the wrong forum.

I am trying to create a bear-proof area in which to grow bear delicacies.   They are not a critter I wish to attract to my property.    If they can get food even once off my property, I become a place where they wish to visit.

I have created an area completely surrounded by cattle panels that I used to keep a buck goat in.   I am thinking that I will switch out the tarp on it now with clear plastic and change it into a greenhouse.   But I have not solved the problem of how to keep bear from using the human entrance to get into the area.   I have not been able to find metal gates tall enough for humans.  

I plan to grow blackberries and blueberries in the area.   These are gourmet delicacies to bears.   So whatever I make has to be 100% effective against bears.

Another issue is that I have attached the cattle panels to the structure via 1/2" pipe holders.   These are more than adequate to hold it against my weather or goats, but I need a more secure method to hold it against bears.

Any suggestions would be appreciated.   I hope to have everything in place before September/October.   So that it will be ready in the spring.

How about a solid door?
2X4s between layers of plywood might do the trick.
Or maybe bolt human exterior door to the existing gate.

Perhaps you should think of the fence as a deterrent as opposed to being bear proof. It takes an awful lot more than thin wire fencing to keep a determined 600+ lb grizzly out.

Some people electrify their fences; if you raise your metal slightly from the ground, and hook a low-impedance fence charger to it, you'll improve effectiveness of your deterrent. I suggest wiring an indicator light into the gate so you don't inadvertently shock yourself. Electrify everything including the gate and you should find your current setup sufficient against all but the most determined bear.

Have you considered a deterrent?  I have heard of people protecting empty cabins by leaving a board with nails driven through it outside the door.  If a bear approaches the door he will step on the sharp ends of the nails and be driven off before he can break in.

Look at Paul's bear resistant bee hive shelter

Alex Riddles wrote:Have you considered a deterrent?  I have heard of people protecting empty cabins by leaving a board with nails driven through it outside the door.  If a bear approaches the door he will step on the sharp ends of the nails and be driven off before he can break in.

That would sound like a plan if I were not going in and out of it often.  

Bears can rip a car door off to get in when they want to.
So yeah...
Bears hate the smell of Lysol (as do I) maybe get some old bedsheets and saturate them and surround it like a moat? It worked to keep a bear from returning to my garage (which shattered the window and destroyed the area).

Who was there first, the bears or you?

To make a few assumptions ....I assume you are talking about black bears.  I assume you are living there all year.  If both assumptions are correct, one good dog should do it. Two dogs would be incredible.