Sisal cord is a useful natural fiber item , and understanding its various thicknesses is key for picking the appropriate option for your project . Generally, sisal rope comes in sizes spanning 1/8 inch to 1 inch in diameter , with frequently used sizes being 1/4 inch, 3/8 inch, and 1/2 inch. Thicker cords (like those over 3/4 inch) are often used f