Generic Folding Wooden Pet Ramp Stairs Portable Dog Cat Animal Bed Steps Ladder Both Ramp And Stairs For 2-In-1 Functions Material: Fir Wood (Frame); Lint (Stairs) Dimension Of Unfolded Ladder: 30 X 18.5 X 19.7 (L X W X H) Dimension Of Folded Ladder: 31 X 18.5 X 3.5 (L X W X Thickness) Size Of Each Stair: 15.5 X 9.8 X 1 (L X W X Thickness);Size Of Support Board Under Ladder: 10.2 X 5.5 X 0.4 (L X W X Thickness)