Sisal cord is a useful natural fiber item , and understanding its differing thicknesses is key for selecting the right option for your project . Generally, sisal rope comes in sizes ranging 1/8 inch to 1 inch in diameter , with common sizes being 1/4 inch, 3/8 inch, and 1/2 inch. Larger cords (like those over 3/4 inch) are usually used for demandin