24' x 9'.  The long sides slide toward each other.   It holds 4 round bales in a bottom row.  It can hold a total of 7 bales with an additional 3 bales in an upper row. The long sides slide toward the center to allow cattle access to all of the bales. That collapsing also makes it easy to lift with the forks of a loader tractor.   It's made of 2" oil field pipe and 1 1/4" square tubing.  I've not seen another portable feeder built this heavy.  I bragged that it was bullet-proof until some unknown person shot a few holes in it.