Concertina Coil

The coils shall be attached directly to the top of the chain link fabric with the elimination of the top rail. No top rail requires box and/or diagonal bracing from corner to end posts to the first line posts. The chain link fabric shall be installed with the barbs up and a 7- or 9-gauge coil spring tension wire shall run in place of a top rail. Using a top wire on all barbed tape products is highly recommended when it is installed on fences or walls. This is best accomplished by extending every other line post and all tension posts and running a strand of barbed wire over the line of the fences as shown above. The top of each loop shall be hog-ringed to this top wire.

The coils shall be attached directly to the top of the chain link fabric with the elimination of the top rail.