Where can i check online for a complete list of a certain condo unit sizes.Every website that ive gone to shows like 1500-3500 sq but not the exact sizes of the units..Where can i find it?

Visit the unit you interested , your agent should be able to answer you as well. Condo have few sizes depends on unit location. Once you visit the unit you roughly know ,whether it suit your needs...

Online listing of properties are usually made generally. To get the exact measurement, head over to the showrooms and get the brochures (if it's a new property) or get a copy of the sale and purchase agreement or title (if the property is already completed).