I think that’s the real beauty of Scale Print.
You just have to have a .jpg file of your plan. Typically, drawings from the mags have actual measurements on them, so you load the jpg into scale print and tell it the feet and inches between two points.
Then you tell it the scale you want printed. It has the common ones for us: 1:20, 1:22.5, 1:24, 1:29, and 1:32. (It also has user defined.) Then you tell it to print and out it comes.
It does not matter how big the plan is; Scale Print will divide it up into some number of pages that you just cut up and tape together to make your full size to scale plan.
I’ve found it very useful.