Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action.

A connector assembly, which in one embodiment has an upper connector and in another embodiment has a lower connector. The assembly can have a gusset plate sandwiched between the upper and lower connectors. Also, disclosed is a hoistable connector assembly, a lifting frame assembly, a coupling system for modular frame units, a method for assembling a module unit using the connector assembly, and a modular frame unit and building having the connector assembly. Also, a system for coupling adjacent modular frame units for forming a modular building and a method for coupling modular frame units for forming a modular building are provided.

A lower connector includes a lower connector hollow body, a pair of lower connector bosses coupled to the lower connector hollow body, and a pair of lower connector arms coupled to the lower connector bosses. A connector assembly includes an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors.

The present disclosure relates to a patterned frame rail which includes an inner frame rail and a pair of outer frame rails. The inner frame rail includes a pair of mating surfaces disposed normally. Each of the mating surfaces includes oppositely disposed first and second end portions. One of the end portions is offset from the respective first and second end portions.

A rail attachment for supporting a support rail includes two rail brackets engaging with and securing the support rail therebetween, a connector securing the two rail brackets to one another and including an attachment unit suspending the rail brackets and support rail, each the rail bracket including a support section engaging and secured to the support rail and each bracket further including a first connection section extending over the support rail, an intermediate region and a distal region whereby the distal region is spaced from the support section by the intermediate section and wherein the distal region is of a greater length than the intermediate region as considered in a direction perpendicular to the direction in which the intermediate region spaces the distal region from the support section, and the connector including a second connection section securing the distal regions of the rail engagement brackets relative to one another.

A modular system for attachment of blocks of a connection assembly comprising: at least two blocks comprising a first block and a second block; a connector configured to secure the first block and the second block together; wherein the first block comprises a port having a first opening on a first face and a second opening on a second face, wherein at least one of the first opening and second opening is configured to receive at least a portion of the connector; and a first fastener configured to engage each of the connector and the port of the first block to removably secure the connector in the port.

A securing bracket and system are provided. The securing bracket is preferably used to secure two side panels of a housing together. The securing bracket is especially suitable for making housings of different shapes by allowing the side panels to be secured in a parallel or a perpendicular manner. The panels and securing brackets may be used to, for example, create a garden bed.