we've been using a
Port-A-Deck for the last few months and it has proven to be an excellent product ....
YouTube video .... we have found that it performs as advertised .... one major advantage is each of the 4 legs of the deck support frame and both of the legs for the steps are individually adjustable .... this allows it to be used on uneven surfaces .... as this is being typed we are spending the summer in our camper in South Dakota, when we pack up to head south for the winter, it folds up to where it is easy to store and transport .... it takes less time to put up or take down the deck than it does to put out our manual awning and stake it down ....
a link to a thread with pictures .... while camping in Texas we met the fellow who owns and manufactures Port-A-Decks .... he came up with the design in response to his wife's medical issues which make it difficult to get into their camper .... I have a knee issues which will require yet another surgery this fall and using a Port-A-Deck sure helps
Jim