We carry two different styles of table legs. Both legs are intended for the right height to make a 30-inch table. The legs assume your tabletop is about 1.25 inches thick. Both sets of legs have a welded plate at the top that gets attached to the underside of the vintage table with screws. You can set the legs where you like. However, it is a little hard to put the legs on, so you may want a handyperson to help with your replacement table legs.