All of one day.
So I took these
And made this
Which left me with these
Okay, to be fair I did need to add another one of those 2x12x96 planks, but I didn't need one of the 2x4x8s. And, yes, one is of better quality than the other. And while they may not be fine furniture, they're good enough furniture (considering I don't have a planer or jointer).
So that's one of 312 chores that have been stacking up for the past 4 years.