Since I’m getting close to pulling wire, I need to decide on the layout of the server room. It isn’t a huge room, but this arrangement gets me 2x 48U server racks, plus a dedicated network rack, and I can get to the front and back of each rack. The ceiling in this room past the stairs is 9′ 10″

There is an access door in the back of the server room to a small concrete crawlspace that might be useful for wine storage or the like as it is fully underground and surrounded by concrete on all sides. The server room has a dedicated mini-split mounted on the side of the wall, and the dedicated 16KVa UPS will be in the mechanical room next door.

It would seem like 96Us of servers is plenty. As with most racks, power density will be the limiting factor. I’m only planning on 240V/60A (14kw) total rack power.