In one aspect of the present subject matter, a method of forming a linear panel includes drawing a multi-layer panel material assembly having differing inner and outer material layers along a processing path. The method also includes heating the panel material assembly. In addition, the method includes forming the heated panel material assembly into a desired shape as the assembly is drawn along the processing path. Additionally, in another aspect of the present subject matter, a linear panel includes a body formed from a multi-layer panel material assembly having differing inner and outer material layers.