I started this project with maple wood 2"x12" x8' planks. I created steps for the cat walk cutting the wood, then wood burning, (I burned in art on the bottom of the boards that can be seen from below the plank) and staining. I connected the steps to the main plank walkway with brackets to hold the wood next to the wall. The main plank runs the length of the wall. I added 2X12X1' boards to create a "Cat Bed" at the top of the stairs and at the end of the cat walk. This project took about 40 hours to build, I classify it as easy.