My confusion is that I am reading spacing between joists of between 18inches and 24 inches. However when I measure the spacing I am getting somewhere in the region of 12 inches (center to center spacing is more like 12.5 inches).
Can this attic be used for storage if I put some plywood on top? I heard about a product called AtticDek but it seems it can only be used with spacing of 18 or 24 inches. Should I considered this product or something else to make crawling around easier?