Abstract: A modular dugout has different modular units including a roof assembly, a base pole assembly, an end assembly, a hinge assembly, and a gate assembly that ease assembly at a site where the dugout is to be situated.

Abstract: Various backstop and netting system embodiments have at least one wall section, at least two poles, and at least two coupling sleeves that couple the wall section (and any adjoining wall sections) and the poles. Further, certain systems include a netting that extends between and is coupled to two adjacent poles and moves between a deployed position and a retracted position within a cavity of the wall section. Many exemplary implementations of these systems include a plurality of wall sections, poles, and coupling sleeves that can be easily installed in a modular fashion to create a backstop for a playing field, such as, for example, a softball or baseball field.

Abstract: A mobile fence system includes a plurality of hinged mobile fence units with rotating feet, or a plurality of mobile fence units with a plurality of feet that have front and rear surface contacting portions, and a raised center portion extending from the front surface contacting portion to the rear surface contacting portion, or a hinged connection between a plurality of mobile fence units including a female hinge member with an apertured planar member.