A modular building section defining the roof and opposing walls of a modular clearspan building. The building section includes a roof portion extending in a longitudinal direction between opposite first and second ends, and a pair of first and second legs, each leg pivotally attached about a pivot axis to the roof portion proximate a roof portion end. Each of the first and second legs has a stowed position in which the leg generally extends in the longitudinal direction and is in superposition with the roof portion, and an expanded position in which the leg depends from the roof portion and generally extends perpendicularly to the longitudinal direction. The legs are moveable independently of each other from their respective stowed positions to their respective expanded positions under the influence of gravity during lifting of the roof portion. Also disclosed are methods for constructing a modular clearspan building.

A modular compactable prefabricated structure has front and back folding modules. The front module has a quadrangular bottom with front, intermediate, right-hand and left-hand sides. A folding front wall is hinged to the front side of the bottom of the front module. The back module has a quadrangular bottom with back, intermediate, right-hand, and left-hand sides. A folding back wall is hinged to the back side of the bottom of the back module. The intermediate side of the bottom of the front module is suitable for going in contact with the intermediate side of the bottom of the back module and no wall is connected in the intermediate sides of the front module and of the back module in such a way that the prefabricated structure has a continuous space between the front wall and the back wall.

A portable enclosed-structure deployment system configured to be stored and deployed from within a shipping container. A floor support system including a plurality of floor panels is disposed in the shipping container proximate to a bottom surface of the shipping container. The plurality of floor panels withdraw from an open side of the shipping container. A plurality of wall panels are stored in the shipping container above the plurality of floor panels. The plurality of wall panels are withdrawn from the open side of the shipping container subsequent to the plurality of floor panels being withdrawn from the shipping container. A roof system includes a plurality of roof panels supported on a rack in the shipping container above the plurality of wall panels. The plurality of roof panels slideably withdraw from the shipping container subsequent to the plurality of wall panels being withdrawn from the shipping container.

A portable erectable shelter may include a pair of wall panels arranged outermost from a pair roof panels. The pair roof panels may be between the pair of wall panels in a collapsed, vertical position of the shelter. The portable shelter may include a first outer wall truss link rotatably fixed to a sidewall of a first wall panel and having a first end pivotally secured to a first corner of a first roof panel and a free end opposite the first end. The portable shelter may further include a first outer roof truss link rotatably fixed to a sidewall of the first roof panel and including a first end pivotally secured to a first corner of the first wall panel. The first end of the first outer wall truss link may be arranged to abut the first end of the first outer roof truss link in an erect position.

Embodiments relate generally to a foldable play structure comprising a plurality of panels each connected to another by at least one hinge to provide an accordion fold structure, wherein the accordion fold play structure comprises two configurations, in a first configuration, the plurality of panels are folded to be stacked in substantially parallel planes, and in a second configuration, the plurality of panels are unfolded forming a play structure. A method for assembling a foldable structure may comprise providing a playhouse with an accordion fold structure, wherein in a first configuration of the accordion fold structure, the plurality of panels are folded to be stacked in substantially parallel planes, and in a second configuration of the accordion fold structure, the plurality of panels are unfolded forming a play structure; and unfolding the playhouse from the first configuration to the second configuration.

Embodiments relate generally to a foldable play structure comprising a plurality of panels each connected to another by at least one hinge to provide an accordion fold structure, wherein the accordion fold play structure comprises two configurations, in a first configuration, the plurality of panels are folded to be stacked in substantially parallel planes, and in a second configuration, the plurality of panels are unfolded forming a play structure. A method for assembling a foldable structure may comprise providing a playhouse with an accordion fold structure, wherein in a first configuration of the accordion fold structure, the plurality of panels are folded to be stacked in substantially parallel planes, and in a second configuration of the accordion fold structure, the plurality of panels are unfolded forming a play structure; and unfolding the playhouse from the first configuration to the second configuration.

A portable erectable shelter may include a pair of wall panels arranged outermost from a pair roof panels. The pair roof panels may be between the pair of wall panels in a collapsed, vertical position of the shelter. The portable shelter may include a first outer wall truss link rotatably fixed to a sidewall of a first wall panel and having a first end pivotally secured to a first corner of a first roof panel and a free end opposite the first end. The portable shelter may further include a first outer roof truss link rotatably fixed to a sidewall of the first roof panel and including a first end pivotally secured to a first corner of the first wall panel. The first end of the first outer wall truss link may be arranged to abut the first end of the first outer roof truss link in an erect position.

A collapsible modular building is constructed from at least two building modules that are joined together to form the building. Each building module is constructed to be configured in either a collapsed or erect position. In the collapsed position, each module is individually transported to a site by trailer. Once offloaded, the modules are joined together to form the building, this joining together of the modules can be done while the modules are in the collapsed position or in the erect position.

A modular building section defining the roof and opposing walls of a modular clearspan building. The building section includes a roof portion extending in a longitudinal direction between opposite first and second ends, and a pair of first and second legs, each leg pivotally attached about a pivot axis to the roof portion proximate a roof portion end. Each of the first and second legs has a stowed position in which the leg generally extends in the longitudinal direction and is in superposition with the roof portion, and an expanded position in which the leg depends from the roof portion and generally extends perpendicularly to the longitudinal direction. The legs are moveable independently of each other from their respective stowed positions to their respective expanded positions under the influence of gravity during lifting of the roof portion. Also disclosed are methods for constructing a modular clearspan building.

A collapsible modular building is constructed from at least two building modules that are joined together to form the building. Each building module is constructed to be configured in either a collapsed or erect position. In the collapsed position, each module is individually transported to a site by trailer. Once offloaded, the modules are joined together to form the building, this joining together of the modules can be done while the modules are in the collapsed position or in the erect position.