Jun 13, 2022 · If each row has one occupant car per row, you will need an aisle between each row equal to twice the width of each car (2 x 8 = 16). This would require 1,920 square feet (3,840 - 1,280 = 1,560 + 16 = 1,576). This leaves 464 square feet for the edges of each parit space where people enter and exit their vehicles.