Picked up three of the PixNode Net™ from Holiday Coro. One was cut down the middle, and each half was added to one of the full panels. This created two matrices roughly 8 feet by 6 feet. Both of these together then cover the garage door. It rolls up and stays up with a bungee cord to allow going in and out of the garage.
We went with 3" spacing of the pixels to keep the amount of pixels down, but should still look good, being the garage is the farthest point away from viewing.