The most common of the suspended ceilings is Armstrong ceiling, which has indisputable advantages over others. This is the ease of design, as well as a classic design that is perfectly combined with any almost style in interior design. Under this type of suspended ceilings, many different accessories are made, while its cost is not high, which caused its worldwide popularity. According to unverified information, the ceiling received its name in honor of the first man who had stepped on the surface of the moon — Neila Armstrong. The design of the first samples of the ceilings of this system allegedly imitated the lunar surface.