One Ship Deck Party Backdrop. Backdrop measures 4 feet by 30 feet. This is the lower half of a two piece set. It can be used alone or with our Ocean and Sky Party Backdrop. Party Backdrops are the best thing to happen to parties since the balloon. You can transform your party room instantly. Our Ship Deck Party Backdrop is great for setting the mood and is ideal as a background for taking pictures. Be sure to check out our Bon Voyage Banner and Tropical Cruise Wall Decorations that are the perfect compliment to this party backdrop.