My perf is 30 tall.
I has a sort of blank strip at both ends, like in this picture:
So I just drilled an extra row of holes there, as needed.
As to 30 row vero, I get some fairly big-ass pieces off of Ebay. Let me know if you want a link.
However, you will notice that Rocket88 was generous with his spacing, which is great for heatsinking the regulators. You can very easily remove a few of those columns near the end and size it down if you need to. I marked the rows that should have nothing connected to them with the weird red thermometer looking things in the pic below. I considered doing this but since it was just one row and I am so ADD I'd probably forget the updated spacing, I went for drilling holes in that extra "row."
If you do decide to remove a row or two, I'd go sparingly as the extra space is nice to have. You can also "stitch" two pieces together. If you do so at the IC then the 8 pin socket could work pretty well for holding them together. Also with the vertical alignment of the copper strips, this is even easier to do than normal.
That said, I HIGHLY recommend this layout. Since this is to be a desktop recording power supply, I'm going to house it in one of the larger Tayda plastic enclosures and it should be good to go with plenty of room. If I make a pedal board version, I'll probably use an aluminum enclosure.
I'm powering mine with a 12volt 500mA wall wart that measures closer to 18 volts. That's QUALITY!
Of course this awesome circuit regulates all that.
I alos plan on building Induction's version as well and have it outputting -9v, 9v, 12v, 15v, and 18v. I plan to power it with a 20v 1amp wall wart (plenty of amperage for those reverb pedals, etc.). I figure between those two power supplies I can power any damn pedal!
One warning, though. One of my cables that I made for it had a short, so when I plugged it in to the power supply it read 0 volts and the very last regulator in my ground chain got HOT. I discovered this by burning the shit out of myself on it. Thank goodness I had the recommended bolt and washers on it.