Here is a progression of pictures showing how I created a hard wood floor for a work with a tall chair and a tall stack of cakes.
To create the floor I used craft sticks with the rounded ends trimmed which were then glued to a piece of MDF board. I also use these same craft sticks to stir and mix paint.
I then painted the surface with black paint making sure to work paint into the crevasses between the planks.
After the paint was dry I sanded the surface leaving a little bit of paint for visual texture.
The final image shows the finished work with the floor in place.