4 yard warping board from Beka, Inc!
 
Made from natural hard maple, beech or a similar beautiful hardwood.  Comes with two pieces with 5 dowels, one piece with 2 dowels, and one piece with no dowels.  The dowels/pegs stick out 5-3/8" from the wood base.  The dimensions when set up are: ~21-3/8” x ~19-1/8”.  Adult Assembly Required.  Yarn sold seperately.