A barrier (162, 190) which is constructed from barrier structures (12A, 12B, . . . , 12N) each of which comprises a parallelepiped body made from mesh material with an interior in which are positioned deterrent sections (10, 50, 200, 200X), wherein the bodies are positioned in a succession of overlying horizontal rows which follow a barrier line.

A removable pool fence and pool fence system has a plurality of pool fence posts each with a luff groove extending approximately normal to the ground when the pool fence is installed. The luff groove accommodates a sliding mating portion such as a keder disposed on an edge of a fence panel. When assembled, fence panels have two edges, each slidingly engaged within a luff groove of one of two fence posts. Around the keder, flexible pool fence material is wrapped and maintained. The fence posts are removably supported on or within a pool deck such that the pool fence remains upright when installed.

A barrier that includes a plurality of first wires that extend in a horizontal direction is provided. The barrier can include a plurality of second wires that extend in a vertical direction. The barrier can include at least one third wire that extends in a direction orthogonal to the vertical direction. The plurality of second wires and one or more wires of the plurality of first wires can form a first portion extending in a first plane defined by the vertical direction and the horizontal direction. The at least one third wire and at least one wire of the plurality of first wires can form a second portion extending in a second plane defined by the horizontal direction and a transverse direction. The plurality of second wires can be excluded from the second portion. The at least one third wire can be excluded from the first portion.

A fence system comprises a rail assembly, a post assembly, and a panel insert. The rail assembly comprises at least two rails, and each rail defines at least one rail opening. The post assembly comprises a plurality of posts arranged to support the rails. The panel insert is arranged such that portions of the panel insert extend through at least one of the at least one rail opening in at least one of the at least two rails such that the panel insert is supported by the rail assembly.