Sisal rope is a versatile natural fiber item , and understanding its differing thicknesses is essential for selecting the right option for your project . Generally, sisal cord comes in sizes spanning 1/8 inch to 1 inch in thickness , with typical sizes being 1/4 inch, 3/8 inch, and 1/2 inch. Heavier cords (like those over 3/4 inch) are often used f