The wheel bases for the Sunseeker's varies in size depending on the chassis. The smallest wheelbase is 158 inches with the largest being 202 inches. The exterior width for each chassis is 101 inches and the height is almost uniformly 11 feet, 2 inches with a few chassis being 11 feet, 4 inches.
The Sunseekers' interior is divided into five distinct areas. There is a cab area, a galley area, bathroom area, living room area and bedroom area. Floorplans for the different models are all slightly different but do feature all the same living areas.
All Sunseekers feature a fiberglass roof as well as an exterior ladder for aiding in getting onto the roof. Exterior security lights help with safety and each Sunseeker has a screen door as well as a fiberglass door that comes equipped with a deadbolt. The Sunseeker has heated and enclosed holding tanks and easy dump valve stations for evacuating body waste.