Hi, thanks! These are not made to work with RPG Maker's autotile system, sorry. You may adapt them or place them manually, though. I provide 3 sizes for each file, and I think 48x48px (300%) would be the RPG Maker standard.
Not modern stuff, since these are mainly medieval fantasy, but I'll consider adding a few elements like a small desk, pencil, blackboard, a bell and stuff like that :)