Check out this really interesting video all about how the reclaimed wine barrel flooring is made.  Often used in commercial wine rooms this type of flooring can make a stunning statement in a residential home wine cellar.

Here are some examples of wine cellars with this type of flooring:
New Contemporary Custom Wine Cellar in St. Louis Missouri
Residential home in Cape Cod near Boston Massachusetts

Made from actual oak wine barrels. As it is made from the outside of the barrels it shows the cooperage stamp throughout the floor. Learn more about wine cellar wine barrel flooring here. Wine Cellars by Coastal Flooring.