Bonakemi Unfinished floors are installed and then sanded and finished on the site. This allows you to have a floor which is perfectly smooth all across and choose the finish you want. You can choose from dozens of species of woods. Each wood also comes in a variety of widths starting from 2 and 1/4 inch wide (called strip floors) all the way up to 10 inches wide (called plank floors). Each species also comes in a variety of grades, meaning it can have a lot of knots and color variation (called rustic) , or be free of knots and have more even coloring, (called lear).