I have a new-to-me 2020 Precept 31UL and was leery of adding rug-type covers to the folding steps (to protect the vinyl floors from fine, sharp gravel that was being tracked in at my storage lot) ....... it didn't look to me like there was enough clearance for them (and Kwikee/Lippert doesn't like 'em installed at all.) BUT, I gambled and lucked out ...... a rare happening for me. I just thought I would document this in case others were wary also. The material is similar to what I had on my old (single step) coach ..... and it doesn't hold the water real long after a rain.
I didn't find a lot of choices wide enough for the 24" steps on my coach, but etrailer had these at 23".... so nice fit. Kinda pricey , but installation was quick and easy.....a pic is attached. I have no vested interest in this company or any of its products, BTW.
https://www.etrailer.com/RV-Step-Cov...xoC_sIQAvD_BwE
BTW-2 I also cut some pieces of carpet remnant (cheap) to fit inside with the slides in. I was having to pick small gravel pieces out of the vinyl floor surface after vacuuming ....... hopefully, no mas.
Good times and safe travels.