I have a stool that measures 60cm x 70cm and has 4 feet and the distance is 10 cm and it goes through the bottom, unfortunately I can't upload a picture here
My bed is also just 10cm from the edge of the frame, on a parquet floor, and it passes through automatically without any problem. I really appreciate not having to dust underneath.
My bed has 10cm between the floor and the base and I had to force it through (because it stopped just before going under the bed). You'll have to use the "high coverage strategy" model.