Abstract: A composite material and structure. The structure has a folded sheet having a rigid inner layer sandwiched between flexible outer layers. The sheet has an undulated shape with alternating summit and valley portions. Intermediate portions each extend between adjacent summit and valley portions. At least one score line extends through at least one of the flexible outer layers. The sheet is folded about the at least one score line. A method of forming a structure from a sheet having an undulated shape.

Abstract: The corner protector has a flexible sheet having an undulated shape with summit portions, valley portions, and intermediate portions each extending between corresponding summit and valley portions. The sheet is foldable along a length of at least one of the summit portions to form a folded shape for the sheet corresponding to a shape of the corner. The valley portions of the sheet in the folded shape are abuttable against side walls of the object intersecting at the corner. An apex section of the summit portion in the folded shape is spaced from the corner of the object upon the valley portions abutting the side walls.

Abstract: A runner, a suspended ceiling system, and a method of installing a suspended ceiling, the runner having a base with two laterally opposite flanges for supporting ceiling tiles, a hinged web connected to the base between the flanges so as to be foldable between a flat configuration with the web folded against one of the flanges and an inverted-T configuration with the web normal to the base for suspension and use, the hinged web allowing for economies is shipping when compared to conventional rigid inversed-T shaped runners.

Abstract: Each one of the runners of the suspended ceiling system has a base with two laterally opposite flanges for supporting ceiling tiles. A web can be hingedly connected to the base between the flanges. The runners can be suspended from above using cable fasteners which lockingly engage with apertures provided in the runners.

Abstract: The waved wood assembly can have a flexible support layer onto the face(s) of which one or more wood sheet layer(s) are adhered by an adhesive. The waved wood product can maintain its waved shape when freestanding. It can exhibit significant elasticity characteristics. It can have very accentuated waves, i.e. waves that span a greater thickness for a given number of waves per unit of dimension.

Abstract: A runner, a suspended ceiling system, and a method of installing a suspended ceiling, the runner having a base with two laterally opposite flanges for supporting ceiling tiles, a hinged web connected to the base between the flanges so as to be foldable between a flat configuration with the web folded against one of the flanges and an inverted-T configuration with the web normal to the base for suspension and use, the hinged web allowing for economies is shipping when compared to conventional rigid inversed-T shaped runners.

Abstract: The waved wood assembly can have a flexible support layer onto the face(s) of which one or more wood sheet layer(s) are adhered by an adhesive. The waved wood product can maintain its waved shape when freestanding. It can exhibit significant elasticity characteristics. It can have very accentuated waves, i.e. waves that span a greater thickness for a given number of waves per unit of dimension.