Sketchup is a 3D modeling and rendering program that helps users create virtual models of their projects. It also provides a wide range of tools such as the ability to design furniture, create electrical plans, and design an interior space.
The exterior of a house is the visible part of the building. It includes the roof, walls, windows, doors and other features like columns or arches. The exterior can also include steps and balconies.
Exterior design is one of the most important factors when it comes to how people perceive a building.