We have had several TTs of different sizes and our current 5er over the years, and all the steps were a standard 24". We have bought quite a few of the step carpets, and to the best of my knowledge, all were 18" wide. I have never seen any of a different width. Don't know how much Camping World wants for theirs, but Walmart sells them for around $8 each.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.