Is Furniture art? Some furniture is. It depends on how original is the design, construction and what statement is made, if any. There are many levels and forms art takes. A splash of color on a canvas or a intricately designed display might babble or develope reams of interesting ideas. An artist often tests ideas and works them trial on trial until they complete some thought. Does it come across or fall flat? Does the work say what he or she is trying to get across?
More successful works tend to use a vocabulary developed by the artist over time. It takes much time and development to build a vocabulary. Most often you can see that development in previous work. Thoughts mature over time. Connections are built up of familiar elements and details if they are to have deep and real meaning to the audience.