I am another raised bed gardener. It is easier to improve the soil in raised beds & not walking in them keeps the soil from becoming compacted. I admit I am greedy for the growing space, though. My raised beds are 5 ft wide separated by 3 ft walkways. The width is at the upper limits for being able to reach comfortably into the middle of the bed from each side. Any narrower & I am fighting the various squash & melons constantly for growing into the aisles & sometimes they win!
Steve