Thinnest step can I could find. Thrilled that it’s simple human. Have had great luck with quality of this brand. Needed it for a hallway entrance to a kitchen in a studio apartment. The step aims toward the facing wall and there is still plenty of room to walkthrough even carrying groceries. So the depth isn’t too deep either. Next to a sofa table, it’s perfect for a makeshift (blog worthy photo) coffee station in a small space.