It is amazing how much room a bicycle can take up in your garage or family room—and three or four bikes can take up half of a two-car garage. If you are looking for one of the most space-efficient ways to store your bikes I would strongly suggest you check out the Topeak Dual Touch Bike Storage Stand.
Five or six years ago my bike collection started growing and I was having trouble find a place to store my bikes in a way that would keep them easily accessible. After talking with the folks at the local bike shop I settled on the Topeak Dual Touch Bike Storage Stand and it works perfectly as my main storage rack (I have a couple other storage racks as well). As you can see in the photo above, I use my Dual Touch Stand in my garage and it almost serves as a wall between my bike repair area and the rest of the garage (we have a two-car garage but half of it is used for bicycle storage and my own private bike repair shop).
The Dual Touch Stand consists of two interlocking tubes with a quick release locking stepper foot at the bottom that secures the stand in place—these tubes will expand to reach a ceiling up to 10.5 feet high. This unit comes with two bike mounts that offer up to 30 degrees of adjustment to fit bikes with sloping-up top tubes (you can add two more mounts for additional bikes). This stand can hold 39 pounds per bike mount and up to 158 pounds per stand.
This stand needs a solid floor and ceiling for it to work properly—if either end flexes very much there is the possibility the unit could tilt (or even fall). If you are going to use this stand inside your house on a carpeted floor I would strongly suggest you put a 2″x2″ piece of plywood under the stand. Also, if you have a drywall ceiling the top of the pole needs to be situated directly under a stud (use an electronic stud finder if you are not certain about the location).
The Topeak Dual Touch Bike Storage Stand with two bike mounts retails for $200, but you can find it on Amazon.com for under $140. I bought mine at the local bike shop which means I paid a bit more than I would have from Amazon.com, but I like to try to support the local shop when possible.