
Joseph C. answered 09/16/20
Concept Illustrator, BFA Illustration Savannah College of Art
The industry standard, easiest to use basic program to knock out interior design visuals is SketchUp. Their 3d ware house already contains thousand of models free to download directly into your model. Take the time to play with the program, use it for a real world project and keep it simple, watch youtube lessons, you'll have it down in a week.