This may fall into the "who cares but Alli" category, but I had to share. As part of the inspection process, we had the house professionally measured. So that meant that weeks ago I had a floor plan and room dimensions to play with.
At this point your square will cover the whole slide (it's theoretically room-sized, remember?). You won't see any edges. But that's fine.
That 3% is the key. Now you can create every piece of furniture the same way, and then resize to the same scale. If your room needs to be 1% to fit on your slide, just be sure to change every piece of furniture to 1%. Start drawing squares, resizing them, and changing the scale.
If you want to add doorways and windows, this gets a tad more tedious, but here's how I did it. Kyle emailed me the measurements of each section of wall/window. Here are the measurements for the top wall:
36.75" wide windows
24.5" from bookcase
47.5 to next
47.5 to next
37.5 to front wall
You can work backwards too. I drew a "rug" that roughly fit the area I wanted to cover. I right clicked, and noted the measurements. Then I just multiplied by 100/3 to see what the full scale size would be. Now I know roughly what size rug to look for in that space.
And to give me something to do until we can actually get in there!