Looking for Eagle file for standard breadboard power.

  I am trying to find an Cadsoft Eagle .brd file.
I want to plug boards into a standard breadboard, for power.
I want to plug onto the thin side.

It seems to be a metric measurement, even though it is 0.1" hole spacing.

Or if someone has the spacing info for the pins?
I measured 4mm on centre, then 40mm to 51mm for the far row.

So it would be on the left or right of the breadboard.
I always round ground at the outside, and 5v in the middle.
So swapping ends will work.

Thanks, and I will keep looking

Mick M