We built our deck when we had out TT. We built it level with the ground for a couple reasons, no railing needed to hide the view, access from anywhere, when TT electric awning was deployed it would be too low if we built an elevated deck, I have access to tires so I can easily check pressure and inflate if necessary. We are limited to deck size - no longer that camper and max of 10' out. Our TT didn't have a slide on the curb side but our 5er does. I didn't think it was worth the time/energy to reconfigure the deck to gain the space the slide covers.