Waffles are not made from dough, they are made from a "batter". I guess the best way to describe a batter would be a "loose dough. It is very pourable and contains a higher amount of liquid than a dough, but has the same basic ingredients. A batter is also used for cakes, pancakes, muffins, etc. I don't know if this is what you are looking for. Hope it helps.
Some of the true Belgian waffle (the rich dense version you get from a street vendor in the Grand Plaza) recipes have a soft dough instead of a batter. My favourite recipe uses a dough which cooks wonderfully in an old fashioned belgian waffle maker but doesn't do well in a standard waffle maker.
If so, it depends on your presentation preferences. Use a walnut sized piece of dough for buffets or desserts, or a clementine sized piece of dough for the traditional single Belgian waffle maker.