I have a wooden frame on which I use either my janome or juki machines. ( preference to juki which has a larger throat..) it works very well on free motioning a quilt. King and queen size don't fit exactly do them in sections. I use ,red snappers to load quilt and it goes on quick and easy. I already had the janome when I purchased the machine. Purchased juki at a quilt show later. The set up cost about £1000 altogether the wooden frame a few hundred with machine costing about the same. The wooden frame is 9ft which was size for my wall. It did do different sizes.