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The foldable, multiple level playhouse for cat has a collapsible housing with a plurality of wall panels that are movable relative to each other to a collapsed or folded position for storage. Each side panel has at least one floor slot. The playhouse includes at least one floor member that is adapte

The foldable, multiple level playhouse for cat has a collapsible housing with a plurality of wall panels that are movable relative to each other to a collapsed or folded position for storage. Each side panel has at least one floor slot. The playhouse includes at least one floor member that is adapted to be removably connected to the plurality of wall panels. The floor member has a plurality of perimeter tabs each adapted to be received in the slots of the wall panels to lock the floor into position in the housing. The floor member has a portion that is adapted to fold downward to the floor of the next adjacent level of the cat playhouse to form a ramp between the two levels and to provide support for the floor member.

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1. A foldable multiple level playhouse for a cat to be positioned on a ground surface including a substrate, floor or table, comprising: a collapsible housing having a plurality of wall panels that are connected together along fold lines to form a continuous sheet of material and are movable rela

1. A foldable multiple level playhouse for a cat to be positioned on a ground surface including a substrate, floor or table, comprising: a collapsible housing having a plurality of wall panels that are connected together along fold lines to form a continuous sheet of material and are movable relative to each other in order to collapse upon each other in an accordion manner for storage, each of the plurality of wall panels having two rows of horizontally elongated floor slots, two of the plurality of wall panels having a single angled elongated slot but on a different horizontal plane with respect to the other; means for connecting together the ends of the continuous sheet of material to form a free standing structure; a first floor and a second floor each being adapted to be removably positioned in the housing, the first floor being adapted to be positioned above and separated from the second floor, the first and second floors being adapted to be removably connected to the plurality of wall panels, the first and the second floor each having a plurality of perimeter tabs that are adapted to be received in the floor slots to secure the floors in place in the housing, the first floor having a portion thereof that is adapted to fold downward to the second floor to form a ramp between the first and second floors and to support the first floor, the second floor also having a portion thereof that is adapted to fold downward to form a ramp between the second floor and ground level and to support the second floor, wherein one of the two wall panels has a single angled elongated slot that secures in place the ramp of the first floor when the first floor ramp is in operative position, and wherein the other of the two wall panels has a single angled elongated slot that secures in place the ramp of the second floor when the second floor ramp is in operative position; and means for securing the ramp of the first floor in the second floor. 2. The playhouse according to claim 1, wherein all of the wall panels have the same size and shape. 3. The playhouse according to claim 1, wherein the plurality of wall panels are an even number of wall panels. 4. The playhouse according to claim 2, wherein opposed wall panels have the same size and shape but differ in size and shape from other opposed wall panels. 5. The playhouse according to claim 1, wherein the connecting means is a plurality of tabs and slots on the free ends of the continuous sheet of material. 6. The playhouse according to claim 5, wherein the tabs and slots are integrally formed on the continuous sheet of material. 7. The playhouse according to claim 1, wherein the first floor has a flat portion with a separation line through a partial portion thereof in order to form a ramp portion that folds downward to connect the first floor and the second floor of the playhouse. 8. The playhouse according to claim 1, wherein the housing and the first floor are made of a material selected from the group consisting of cardboard, compressed wood and plastic. 9. The playhouse according to claim 8, wherein the material is cardboard. 10. The playhouse according to claim 1, further comprising indicator means to assist in alignment when two playhouses are stacked one on top of the other. 11. The playhouse according to claim 1, wherein the each of the two rows of floor slots are in horizontal alignment in the four wall panels. 12. The playhouse according to claim 1, wherein the four wall panels has a first wall panel that includes a single floor slot in each of the two rows of floor slots and has one of the two angled slots that is adapted to receive a tab from the second floor, and wherein the first wall panel includes a door that is adapted to open and close to permit the cat to enter into the playhouse. 13. The playhouse according to claim 12, wherein the four wall panels includes a second wall panel that includes a single floor slot in the lower of the two rows of floor slots, and has other of the two angular slots that is adapted to receive a tab from the first floor. 14. The playhouse according to claim 13, wherein the four wall panels includes a third wall panel that includes a pair of floor slots in each of the two rows of floor slots. 15. The playhouse according to claim 14, wherein the four wall panels includes a fourth wall panel that includes a single floor slot in the upper of the two rows of floor slots and a pair of floor slots in the lower of the two rows of floor slots. 16. The playhouse according to claim 15, wherein each floor slot has a rectangular shape. 17. A method for assemblying a foldable cat playhouse that comprises a collapsible housing having a four wall panels that are connected together along fold lines to form a continuous sheet of material, each of the four wall panels having two rows of horizontally floor slots, two of the four wall panels having a single angled elongated slot but on a different horizontal plane with respect to the other, one of the free ends of the continuous sheet of material being a flapped structure and having a vertical row of slots and tabs and the other of the free ends having a vertical row of slots, and a pair of floors each having a plurality of perimeter tabs and each having a portion thereof that is adapted to fold downward to form a ramp, the method comprising: unfolding the four wall panels of the housing; folding downward the ramp of the lower one of the pair of floors; inserting tabs of the lower floor into two of the four wall panels; inserting the upper one of the pair of floors into the same two of the four wall panels; folding downward the ramp of the upper floor; inserting a tab from the ramp of the upper floor into the lower floor to secure tightly the ramp between the floors; folding the remaining two of the four wall panels so that the free ends of the housing meet and the remaining tabs of the pair of floors are tightly inserted into the remaining floor slots; and securing together the free ends of the housing. 18. The method according to claim 17, wherein the securing step comprises: folding the flapped free end around the corner of the other free end; and inserting the tabs of the flapped free end into slots of the other free end and into and through the slots of the flapped free end.