Abstract: A cat scratcher having a frame of sidewalls encompassing a block of open-fluted cardboard and a planar back member with a removable panel. Removing the panel exposes a surface of the block of open-fluted cardboard. The panel may be defined by perforations in the planar back member.

Abstract: A cat scratcher in the form of a rigid shell having a planar base and opposing side walls. The opposing side walls extending diagonally and outwardly from the planar base. A first block of open-fluted cardboard is affixed to the planar base and second and third open-fluted cardboard blocks are affixed to the opposing side walls respectively creating an open space within the rigid shell having three open-fluted cardboard surfaces upon which a cat can scratch.

Abstract: A cat scratcher kit and method of assembly. The kit includes first and second corrugated cardboard blocks, each corrugated cardboard block having top and bottom curvilinear surfaces of exposed open cardboard flutes such that the top surface of the first corrugated cardboard block nests coextensively with the bottom surface of the second corrugated cardboard block in a first orientation. Each of the first and second corrugated cardboard blocks have a notch configured therein such that the first and second corrugated cardboard blocks are joined to one another through joinder of the notches forming a corrugated cardboard perch having a substantially X-profile in a second orientation.