Adventure Jurassic Massive 6' x 6' redwood posts and a larger 6’x 6’ deck, 5’ high, identify this classic. Add a 7’ high Tower for two huge play decks... space enough for the whole family! Olympian Jurassic A 6’ high deck to accommodate longer slides, taller Rock Walls and allow plenty of headroom below. Or double the fun with a second deck: 5’, 6’ or 7’ high.