Good quick rule of thumb is 5 amps per pin. So 20 amps per. This will leave you a little bit of flexibility. Have a 4 plug wall box put in every 10 feet or so.

I have had 13 (modern DMD) pins running (on) using the same 20-amp circuit with 6-8 being played at once. I can't believe I didn't trip something, but there it is. Always better to fork out pennies now for more headroom than dollars later once walls are up, but unless you have dozens of machines being played all at once I can't see dedicating more than 1-2 max 20-amp circuits to the pins for normal home use. Not sure if Gex meant 5 amps per pin/20 amps per in that each breakout box would have its own circuit, but if so in my experience that's way more than you actually need.... If running conduit this would mean larger EMT and more wire upstream to handle all the dedicated conductors to each box. And if your local code requires AFCI breakers that means no common neutrals (more wire) and costly breakers, which also adds up.


Yep thats what I ment, It give you the ability to grow and have flexibility but I'm guessing newer games such as WOZ require more power as well. When I design a game room for customers, this is how I do it. 4 games per 20 amps. unless there is an Airhockey table then I count that as 2 games (10amps)

Ya if it is unfinished run a couple outlets for each breaker! Make it robust now, you'll thank yourself later