A modular recreational and/or survival canvases are disclosed. Each canvas may be used alone or in combination with other canvases to provide shelter. Each canvas includes a base substrate including a plurality of fastener, a plurality of sleeves, and an outer fringe. In a refinement, the canvas may be of a shape such as a hexagon with alternating fasteners along its perimeter such that it may cooperate with one or more other modular canvases to form larger shelters. In one or more embodiments, the canvases may be combined with a construction block and one or more stakes.

A modular recreational and/or survival canvases are disclosed. Each canvas may be used alone or in combination with other canvases to provide shelter. Each canvas includes a base substrate including a plurality of fastener, a plurality of sleeves, and an outer fringe. In a refinement, the canvas may be of a shape such as a hexagon with alternating fasteners along its perimeter such that it may cooperate with one or more other modular canvases to form larger shelters. In one or more embodiments, the canvases may be combined with a construction block and one or more stakes.

A ten-device-in-one reconfigurable adjustable carport (capable of functioning as a privacy screen, a wind screen, a cabana, a dog run, a retail-tradeshow booth, an attic, a storage, a picnic table, a kennel, and a carport) comprises: a canopy, roof spines, roof ribs, leg posts, T-shaped joiners and X-shaped joiners spring-snappingly connected to the roof spines and roof ribs and leg posts for configuring the ten-device-in-one carport as a car canopy and a greenhouse and an enclosure and a barrier and a cabana and a privacy room and a privacy screen and a tradeshow booth and a wind barrier, panels, door-frame panel, panel-to-panel-securing brackets and panel-to-post-securing brackets bolted to the panels and the door-frame panel and the roof spines and the roof ribs and the leg posts for configuring the ten-device-in-one carport as a dog run and a greenhouse and an enclosure and a barrier and bleacher shelves to store or display items and an attic to store items off the ground and a hanging cage to house animals off the ground and structures for displaying signs and roof storage, and bracket heads formed into the panel-to-post-securing brackets for automatically centering the bracket-head ends.

A ten-device-in-one reconfigurable adjustable carport (capable of functioning as a privacy screen, a wind screen, a cabana, a dog run, a retail-tradeshow booth, an attic, a storage, a picnic table, a kennel, and a carport) comprises: a canopy, roof spines, roof ribs, leg posts, T-shaped joiners and X-shaped joiners spring-snappingly connected to the roof spines and roof ribs and leg posts for configuring the ten-device-in-one carport as a car canopy and a greenhouse and an enclosure and a barrier and a cabana and a privacy room and a privacy screen and a tradeshow booth and a wind barrier, panels, door-frame panel, panel-to-panel-securing brackets and panel-to-post-securing brackets bolted to the panels and the door-frame panel and the roof spines and the roof ribs and the leg posts for configuring the ten-device-in-one carport as a dog run and a greenhouse and an enclosure and a barrier and bleacher shelves to store or display items and an attic to store items off the ground and a hanging cage to house animals off the ground and structures for displaying signs and roof storage, and bracket heads formed into the panel-to-post-securing brackets for automatically centering the bracket-head ends.

A modular privacy tent system with a removable roof is provided that includes a frame, at least one sidewall, and a removable roof to enable an open top when the removable roof is removed. The modular privacy tent system allows users located within the tent to enjoy the open top while also enjoying the privacy of the sidewalls. The system also includes a variety of security features that prevent individuals located outside of the tent to access the interior of the tent without consent of those located within the tent. These can include anchor planks to which the sidewalls are mounted within the interior, and various clips used with zippers or other attachment devices associated with doors or windows formed in the sidewall. The tent system may also have other features such as modesty clothes that prevent individuals located outside of the tent system from seeing into the interior.

A modular privacy tent system with a removable roof is provided that includes a frame, at least one sidewall, and a removable roof to enable an open top when the removable roof is removed. The modular privacy tent system allows users located within the tent to enjoy the open top while also enjoying the privacy of the sidewalls. The system also includes a variety of security features that prevent individuals located outside of the tent to access the interior of the tent without consent of those located within the tent. These can include anchor planks to which the sidewalls are mounted within the interior, and various clips used with zippers or other attachment devices associated with doors or windows formed in the sidewall. The tent system may also have other features such as modesty clothes that prevent individuals located outside of the tent system from seeing into the interior.

An expandable tent structure with a side wall of mesh or fabric enclosing an internal volume of the tent. The tent has one or more openings in the roof and/or side walls of the tent, and a hatch pivotally attached to the tent. The hatch in one position covers an opening in the roof and/or side wall, and a mesh or fabric structure extends in an accordion-like manner between the hatch and edges of the opening. A plurality of ribs support the mesh or fabric, the ribs being pivotally attached to the tent supporting structure. When the hatch is in its open position, the internal volume of the tent is increased, with the mesh or fabric attached to the hatch and the edges of the opening providing a barrier over the opening against the environment.

An expandable tent structure with a side wall of mesh or fabric enclosing an internal volume of the tent. The tent has one or more openings in the roof and/or side walls of the tent, and a hatch pivotally attached to the tent. The hatch in one position covers an opening in the roof and/or side wall, and a mesh or fabric structure extends in an accordion-like manner between the hatch and edges of the opening. A plurality of ribs support the mesh or fabric, the ribs being pivotally attached to the tent supporting structure. When the hatch is in its open position, the internal volume of the tent is increased, with the mesh or fabric attached to the hatch and the edges of the opening providing a barrier over the opening against the environment.

Environment isolation structures may include a frame and flexible panels at least partially covering, and attached to, the frame. The frame may include multidirectional node connectors including multiple locations for attachment. At least some of the locations for attachment may be located on different sides of the multidirectional node connectors. Poles configured to telescope to selectively fixable lengths may include connectors affixed to longitudinal ends of the poles. Each connector may be configured to selectively attach to a respective location for attachment on a given side of a respective multidirectional node connector to form the frame.

A tent assembly includes two tents spaced from each other in a longitudinal direction. Each tent includes a tent body supported by a tent frame to form a tent space. Each tent body includes two first tent canvases at front and rear ends thereof and spaced from each other in the longitudinal direction. Each tent body further includes two second tent canvases spaced from each other in a transverse direction. Each first tent canvas includes a first access opening. A connecting tent is connected between the two tents and includes a connecting tent body having two connecting tent canvases extending in the longitudinal direction and spaced from each other in the transverse direction. The connecting tent body is connected between two adjacent first tent canvases respectively of the two tents. The connecting tent includes a passageway connected between two adjacent first access openings respectively of the two tents.