Limestone is an organic, sedimentary rock. Limestone is a softer stone and has quite a long history, and it is widely used as versatile building materials, adding natural texture to commercial projects. Due to its natural beauty, project architects, designers, contractors as well as builders usually choose to use it as exterior accents around windows and entrances in addition to standard stone block construction. When polished to a high shine, limestone is spectacular on office walls, entrance area floors and corridors.