Each person needs about 24 inches (60cm) of horizontal space to eat comfortably.
Allow at least 36 inches (90cm) of clearance between the table edge and walls or other furniture to allow chairs to pull out and people to walk behind them. buy dining room table
To keep a room from feeling cramped, the table should occupy no more than one-third of the total floor space. Each person needs about 24 inches (60cm) of