If your doorway is about 24" wide and you just need one power step to extend out, then the Kwikee # LC3747453 complete electric step assembly should be about right for you. I have provided two review videos for you. I have also included a link to this product page which has a chart of available doorway widths and entry heights for you to choose from if this one is not perfect.
This includes everything you will need to complete your installation. However, if the installation of you... view full answer...
The correct MORryde StepAbove Fold-Down Steps for a 24" wide doorway with 34" threshold is part # MR48RR. The width of the step is not the only reason you need to be within the specified range, the keeper which holds the steps inside the door must be taken into consideration as well which is why you cannot go with a narrower step like the one for 21-3/4" to 22-1/4" doorways. view full answer...
I looked up your Apex by Coachmen qb24 and it appears to have a double step setup below the door so for a 24 inch wide double step with 7-7/8 inches of drop between the steps our best option is the Flexco Manual Step part # SMFP-2100. It's hard finding steps with a shorter drop between stairs but this would be best option. view full answer...
I have a few solutions for you, depending on how tall your RV is.
We have the MORryde StepAbove RV Steps for 21-3/4" to 22-1/4" Wide Doorways - 3 Steps # MR38RR it has a 9 inch drop and rise, 17-1/2 inch wide steps and they are 8 inches deep. This will work with entry heights that are 34-36 inches from the ground up to the threshold.
Next is the MORryde StepAbove RV Steps for 21-3/4" to 22-1/4" Wide Doorways - 3 Steps # MR58RR its specs are the same except the height requirement is... view full answer...