How to build a 12v 100+ Amp power supply (Transformer, Diode Bridge and Cap)?

Projects General Guidance
14

I'm thinking.....will the mains board allow for 100 amp? Maybe the bar and club switch board will allow it.

Uh, 100 amps is 12,000 watts at 120 vac. 100 amps at 12 volts is 1,200 watts. Sure, the panel board should be good for 10 amps.