updated my office project in November, I'd routered down all the upright 2x12 boards along the far wall so that they'd fit in the space that was almost exactly 2 inches shorter than it needed to be. That was certainly a pain, but the real tedium had yet to commence. To accommodate the horizontal shelving, I needed to cut notches in each of those uprights at a suitable height. The most effective way of doing so was to router a 3/4" wide slot 1/2-1/4" deep. Which is all well and good, except the shelving slots on one board need to match up with those of the adjacent uprights, otherwise the shelves turn out crookeder than a Trump cabinet appointee. Easier said than done. For the life of me, I could not remember how I managed this trick a decade ago, so I got clever. First time out, I used tie-down straps to push two boards together in parallel (see below). Then I measured the shelf distance out and cut across both at the same time. This should make for perfectly matching slots, right? Wrong. I got anywhere from a half inch to a quarter inch variance. Ugh. Then I tried doing single boards, but measuring the next slot from the previous one. Even worse decision. One slight cutting error got magnified with each subsequent cut. Finally, I ended up doing what I probably did a decade ago, which is mark all the shelves along the board from the start, and cut from there.
Chicken Ranch Central