I recently restored a Lacquie house from the papa Ted collection being dispersed. All I had was the house (in pretty good shape) but no base. Kathleen graciously took the time to measure all of the dimensions INCLUDING the little rectangular fence holes. They were 3/8" long and 3/16" high. I took a cardboard piece of this size and drew around it and then Cut it out. No Go since the hole has to be bigger than the outside dimension of the drawn pattern for a pencil to mark off the rectangle accurately. So the next guide I made I went OUTSIDE the penciled off dimension. This final little guide worked perfectly and easily helped make the holes more consistent than if done "by guess & by gosh". This should work on any size square or rectangle and perhaps a circle. I also made a pattern for the fence top but that is less consistent.

Tom, Thanks for the tip!