Border walls and related systems and methods are disclosed. A border wall may include a plurality of bollard fence sections adapted for engagement with corresponding base members. Each fence section may include a plurality of bollards. Each base member may include a plurality of openings extending downwardly from a top surface of the base member partially into the base member. The openings in the top of a base member are adapted for engagement with individual corresponding bollards on a bollard fence section. At least one of the bollards is matched to a corresponding opening in the base member so that the matched bollard, when inserted into and engaged with its corresponding matched opening, may function to support and/or align the bollard fence section. The base members may also include connectors, and/or mating alignment notches and protrusions, to facilitate joining and/or leveling of the base members to form a stable wall.

Wind screen for one or more photovoltaic arrays and method thereof. For example, a wind screen for one or more photovoltaic arrays includes a screen foundation including a concrete block, and one or more perforation blocks on the concrete block. In another example, the wind screen is configured to cover at least a first side of each array of the one or more photovoltaic arrays.

A system for building a wall includes a plurality of blocks and a plurality of connectors for aligning the blocks in successive courses. Each block has opposing first and second surfaces bounded by opposing front and rear faces and opposing end faces, the first and second surfaces being profiled with respective first and second rectilinear channels extending parallel to the front and rear faces. Each connector has first and second portions profiled for reception in respective first and second channels, the first portion being profiled to slide but not rotate in the first channel, the second portion being profiled to slide and rotate in the second channel. The second portion is offset from the first portion so that two different orientations of two blocks placed against each other are possible. The blocks preferably have a trapezoidal shape cut with only straight cuts to facilitate using natural stone.

Border walls and related systems and methods are disclosed. A border wall may include a plurality of bollard fence sections adapted for engagement with corresponding base members. Each fence section may include a plurality of bollards. Each base member may include a plurality of openings extending downwardly from a top surface of the base member partially into the base member. The openings in the top of a base member are adapted for engagement with individual corresponding bollards on a bollard fence section. At least one of the bollards is matched to a corresponding opening in the base member so that the matched bollard, when inserted into and engaged with its corresponding matched opening, may function to support and/or align the bollard fence section. The base members may also include connectors, and/or mating alignment notches and protrusions, to facilitate joining and/or leveling of the base members to form a stable wall.

Various embodiments of the present disclosure can include a fencing assembly. In some embodiments, the fencing assembly can include a top cross-member including a first channel. In some embodiments, the fencing assembly can include a bottom cross-member including a second channel that opposes the first channel. In some embodiments, the fencing assembly can include a first vertical support member, wherein the first vertical support member is connected to a first end of the top cross-member and a first end of the bottom cross-member. In some embodiments, the fencing assembly can include a second vertical support member, wherein the second vertical support member is connected to a second end of the top cross-member and a second end of the bottom cross-member. In some embodiments, the fencing assembly can include a planar barrier, wherein the planar barrier is inserted into the first channel and the second channel and is confined on a first and second side of the planar barrier by the first vertical support member and the second vertical support member.

A masonry block, comprising a front face, a rear face disposed opposite the front face, a first side face disposed between the front face and the rear face, a second side face disposed between the front face and the rear face and opposite the first side face, a top face disposed adjacent to the front face, the rear face, the first side face and the second side face, a bottom face disposed opposite to the top face and adjacent to the front face, the rear face, the first side face and the second side face and wherein the top face includes a slot extending from the first side face to a point between the first side face and the second side face, the slot including a first sub slot extending orthogonal to the slot in the top face.

Wind screen for one or more photovoltaic arrays and method thereof. For example, a wind screen for one or more photovoltaic arrays includes a screen foundation including a concrete block, and one or more perforation blocks on the concrete block. In another example, the wind screen is configured to cover at least a first side of each array of the one or more photovoltaic arrays.

Border walls and related systems and methods are disclosed. A border wall may include a plurality of bollard fence sections adapted for engagement with corresponding base members. Each fence section may include a plurality of bollards. Each base member may include a plurality of openings extending downwardly from a top surface of the base member partially into the base member. The openings in the top of a base member are adapted for engagement with individual corresponding bollards on a bollard fence section. At least one of the bollards is matched to a corresponding opening in the base member so that the matched bollard, when inserted into and engaged with its corresponding matched opening, may function to support and/or align the bollard fence section. The base members may also include connectors, and/or mating alignment notches and protrusions, to facilitate joining and/or leveling of the base members to form a stable wall.

A fence section includes an upper horizontal rail, a lower horizontal rail, and vertical members. At least one of the vertical members is connected to the upper horizontal rail by an upper connection system and to the lower horizontal rail by a lower connection system.

A fence section includes an upper horizontal rail, a lower horizontal rail, and vertical members. At least one of the vertical members is connected to the upper horizontal rail by an upper connection system and to the lower horizontal rail by a lower connection system.