I saw that you were looking at the Flexco Manual Pull-Out Steps for RVs # SMFP-2100. We do not have any manual pull out steps in the 24", 1-step configuration you are needing.
We do have some electric steps that meet those requirements though. Steps like the Kwikee Electric RV Step Complete Assembly # LC3723383. The # LC3723383 needs mounting space of 25-1/2" wide and 11-5/8" deep. If you have that, these steps will work for you.
There is no database that tells me what you have on your... view full answer...