You are looking at large butcher block style cutting boards with a variety of woods. Woods include walnut, cherry, red and white oak, maple, etc. We have many for you to choose from and they measure about 19 5/8" long x about 11 3/4" wide x about 1 1/2... Within about an inch off any direction. If you are interested in these I have photographs of them and can give more exact dimensions on the specific cutting board.
These are heavy duty and have a beautiful food safe finish. If you have any questions please contact me and thank you for looking.