For the best option for Brophy scissor steps, I recommend the Brophy Camper Scissor Steps - 5 Steps - Aluminum # AS25. These steps are made for entry heights that range from 40 - 48 inches tall and will work great with your current 40-1/2 inch tall height.
However, another thing that you need to know is your entry way width. With the # AS25, this is made for entryways that will be able to accommodate a bracket width of 24" inches. We do offer steps with 18-1/4 inch wide brackets. That... view full answer...