Disclosed is a positioning device for a fence supplemented with a pet guardrail. The pet guardrail is fixed to a side of an existing fence in a side-attaching manner, and an upper crossbar and a lower crossbar of the pet guardrail are fixed to an outer side of the existing fence by bolts and covered and protected by front and rear cover plates, and both ends of the upper crossbar and lower crossbar are sheathed with a side sleeve for protection. In this way, the grid spacing of the existing fence can be reduced to prevent pets from escaping, and the overall appearance is aesthetic, and the overall structure avoids people or pets from being scratched by the bolts and just requires simple operations for the installation.

A positioning device for fence supplemented with pet guardrail comprises: an upper embedding slot and a lower embedding slot having face-to-face openings and extending axially being respectively formed on an opposite outside of the upper crossbar and the lower crossbar of the pet guardrail, for embedding the upper and lower ends of the straight rod and fixing the straight rod via the positioning peg from the inner side of the upper crossbar and the lower crossbar to avoid the exposure of the positioning peg and omitting the installation of the front cover plate on the front side of the upper crossbar and the lower crossbar, and moreover, the side cover installed and covered on the left and right ends of the upper crossbar and the side cover facing the end of side pole of the existing fence being an circular arc surface, thereby meeting the installation inclination angle of the existing fence. The configuration of the circular arc surface enables the side cover to maintain attached with the side pole.

The present double door gate apparatus has a first lowermost frame member with a first inner end and a second lowermost frame member with a second inner end. The first and second inner ends are spaced apart and engaged by a first connector that engages exterior portions of the inner ends and a second connector that engages interior portions of the inner ends. First and second gates have inner ends that confront each other more closely than the inner ends of the lowermost frame members confront each other.

A railing assembly may include a first railing portion including a first channel and a second channel. The railing assembly may include a first retaining element disposed at least partially in the first channel. A second retaining element may be disposed at least partially in the second channel. A baluster may be disposed at least partially in the first railing portion. The first retaining element and the second retaining element may be configured to retain the baluster relative to the first railing portion. The railing assembly may include a second railing portion, and the baluster may be disposed at least partially in the second railing portion.

A railing or fencing assembly may include at least one rail with at least a first retaining element disposed at least partially therein. A baluster may be disposed at least partially in the at least one rail and the at least a first retaining element may be configured to retain the baluster. The railing assembly may include a second railing portion, and the baluster may be disposed at least partially in the second railing portion.

A picket for a railing system comprises an elongated body with one or more walls and first and second ends. The first and second ends engage the top and bottom rails, respectively, of the railing system. The picket also comprises one or more cutouts formed along one or more of the walls. Each of the cutouts engages one of the plurality of spacers. The cutouts are proximal to the first and second ends of the pickets.

A prefabricated modular fencing system comprises first and second fence panels, each panel having opposing side ends. Each side end carries outboard connectors. The connectors have upper sides defining one of a concavity and a convexity and have lower sides defining the other of a concavity and a convexity, and the connectors define a bore within each convexity. The convexity of a connector carried by the first fence panel may be complementary with and interfitted within the concavity of another connector carried by the second fence panel, to assemble the first and second fence panels together. A post is disposed through the bores of interfitted connectors.

The present invention provides a crib rail structure that includes: at least one hollow horizontal tube member, a side portion of which is provided with a plurality of interspaced openings; and a plurality of hollow beam tube members, which are respectively inserted into the interspaced openings of the hollow horizontal tube members for assembly use. The sides of each of the hollow beam tube members are provided with a through opening, which are located in the tail end of the hollow beam tube member. Moreover, the positions of the through openings are adjacent to the sides of each of the interspaced openings of the hollow horizontal tube member. The crib rail structure further comprises the at least one fixing member, which passes through the plurality of hollow beam tube members and presses against the tube inner wall of the hollow horizontal tube member for fixing thereof.

A bollard fence panel includes bollards extending vertically from a concrete base and laterally separated by a gap of about four inches, where each of the bollards is a hollow steel section, and a metal plate located a standoff distance below a top end of the bollards, the metal plate having laterally spaced passages each of which slidingly disposing an upper end of a bollard of the bollards.

A fence system includes a plurality of vertical members, at least one horizontal rail and a plurality of coupling members. A coupling member of the plurality of coupling members pivotally couples a vertical member of the plurality of vertical members and the at least one horizontal rail. The coupling member includes at least one pivoting feature configured to pivotally engage at least one of a vertical member front wall and a vertical member rear wall of the vertical member, at least one retaining feature configured to contact a sidewall of the vertical member, and at least one positioning feature configured to engage the at least one horizontal rail.