Store 5 bikes. Be easily accessible for the kids without any lifting Be foldable to store away in the winter. Be low cost and very fast to build. I found this great Instructable and modified it for our use. It is different in that it is a foldable version, includes a plan, a parts list and a how to build video. The total cost was less than $40. if you have some of the parts already, it will cost less. The build time was about 1/2 an hour.