Movable Island gives the convenience of an Island with the ability to have the space for wheelchair in the kitchen. Five feet is necessary for turning. The "bar should be between 28"-34" tall. I vote 30"- table height. each person needs 30" of space side to side. Any walking corridor that is behind people eating should also be 5 feet. The space between people and the wall with no walk through is 36". The five feet between the island and the table should be fine even with people possibly eating on each side. Walk through sections of the kitchen can be 4 feet, working areas and turn around 5.