George I am Jealous it looks like you have actual room to work on your 4 bikes. Is that soon to be 5? I noticed a lone frame hanging there. If you have the space that is the best way to store them they are up and out of harms way a buddy of mine caused a couple hundred dollars damage to his bike by stepping on it in the middle of the night trying to navigate the hallway where he kept his bike. If you live in an apartment or rent and cant make holes in your walls, you might want to use something like
this I have two of them for my four bikes and I live in an apartment they are great and inexpensive I paid $80 for the two of them including shipping. The can also be set for just one bike.