Industrial style became popular in the 1990's. Developers created large, open units preserving the old floors, walls,and keeping much of the pipes and wiring and beams exposed resulting in what is known as industrial home decor.
Elements include:
Raw and unfinished look
A mix of grays, neutrals and rustic colors
Utilitarian objects
Large sectionals
Antique or light fixtures with metal finishes
Use of vintage and old factory and laboratory pieces
Wood and metal surfaces
Concrete flooring