Typically, a deck should be proportional to the house and yard. Decks should be about the size or slightly larger than interior rooms with the same function. For example, a deck intended for dining should be around the size of a dining room or if it is intended for entertaining and lounging, it should be living room size.

Bear in mind some out furniture may be slightly larger than indoor furniture and you need to include space for people to move about. Your new deck should be easily accessible and give you the wow factor to your property.