Today I was making a rolling rack for plywood and other sheet goods. The base required me to rip frame parts with a four degree bevel along their lengths, so that the plywood will lean back safely against the center of the cart and not tip over.
I needed the central frame members (joists?) to be narrower than the outer ones, to accommodate the four degree slope. As luck had it, the inner joists needed to be one inch narrower. Easy! Just move the fence over an inch for the last two cuts . . . except . . .