Prefinished Bamboo Flooring PRBAMVC Morning Star Vertical Carbonized 5/8 x 3 3/4 Bamboo Flooring 30 Year Warranty Prefinished Morning Star Bamboo Flooring is one of the best bamboo floors on the market today. It is produced from old growth bamboo reeds that are at least 4 years old- thereby increasing hardness. Morning Star Bamboo Flooring creates a naturally beautiful and ecologically friendly product that evokes a feeling of luxury. Bamboo flooring from Morning Star Bamboo will add harmony to your home. The 30-year warranty will ensure your enjoyment for years to come. Carbonized BambooCarbonized is a process of actually steaming the bamboo in a giant bath and heating up the sugar in the bamboo. The sugar caramelizes and turns it brown creating the darker color. It is not a topically applied stain- it is caramelized.