We have renovated an older house. We need to build a new step/deck on the back. We use this as our common entrance and we BBQ there as it is an entrance to our kitchen and dining room. There is an old fashion exterior basement entrance that I would like to disguise and this is what is creating my dilema. How can I design a deck with 2 level that would have a trap door or something so we can have access to the crawl space but cover it with the deck design?I have attached a picture... any advice would be appreciated.