From Totally Bamboo comes this 15 x 8.25 x .75-in. Cutting Board: Boca Vertical Grain. TOTALLY BAMBOO 15 x 8.25 x .75-in. Cutting Board: Boca Vertical Grain Bamboo is actually a grass that grows to a harvestable height between 3-5 years. Some species grow up to 2 feet per day. After harvesting bamboo does not require replanting. Bamboo has an extensive root system that continually sends up new shoots naturally replenishing itself making it one of the most renewable resources known. Bamboo is 16% harder than maple wood 1/3 lighter in weight than oak yet in some instances as strong as steel. Bamboo holds the promise of a sustainable cost effective and ecologically responsible alternative to the widespread clearcutting of our old growth forests.