South Bend Rope Co marine-grade double-braided nylon dock line, Black, 5/8-inch x 20 feet — 12" eye splice, 13,500 lb tensile

South Bend Rope Co's marine-grade double-braided nylon dock line (5/8-inch x 20 feet) is a durable, flexible mooring line with a 12-inch heat-treated eye splice and a 13,500 lb tensile rating suitable for securing small to medium boats.

This dock line blends heavy-duty performance with user-friendly handling. Built from marine-grade nylon enhanced by South Bend Rope's ExoTough technology, the rope resists UV, salt, oil, and common chemical exposure while remaining soft enough to knot and coil without kinks. Its double-braided construction balances stretch and strength to absorb shock loads at the dock and keep your vessel secure.

How does the double-braided design benefit docking?

Double-braiding places a braided core inside a braided jacket, giving the line high abrasion resistance without sacrificing flexibility. That structure smooths handling for quick knots and better energy absorption when waves or wakes pull on the boat.

• Improved abrasion resistance for fenders and pilings
• Smoother, kink-free coiling and uncoiling
• Core-to-jacket load distribution for shock absorption

What does the 12-inch heat-treated eye splice mean for everyday use?

The professionally heat-treated eye splice eliminates the need to tie and trim your own eyes, offering a ready-made, reinforced loop for cleats, dock rings, or piling hitches. Heat treatment reduces fray and keeps the splice profile slim for easy fitting through chocks and fairleads.

• 12" splice fits most cleats and dock hardware
• Heat-treated finish prevents unraveling
• Cleaner, more reliable connection than hand-tied loops

How durable is this line against marine exposure and wear?

The nylon fibers and ExoTough protection are formulated to withstand common marine stressors: UV radiation, saltwater immersion, oils, and mild chemicals. Combined with double-braid construction and controlled heat treatment, the rope maintains strength and appearance across seasons of use.

• Resists UV degradation and saltwater damage
• Retains flexibility after repeated wet/dry cycles
• High tensile strength (13,500 lbs) for reliable mooring

Which boats and docking situations is this 5/8" x 20' line best for?

This size is well-suited to small to medium-sized powerboats, sailboats, and tenders for everyday dock lines, spring lines, or stern and bow ties. The 20-foot length gives enough reach for typical slip setups while the 5/8" diameter balances handling with load capacity.

• Ideal for docks, slips, and short moorings
• Works well as bow, stern, or spring line on many craft
• Compact length for neat storage onboard or on the dock

Who is this for: Boaters who want a dependable, easy-to-handle dock line that stands up to saltwater conditions and heavy use. If you prefer a finished, heat-treated eye splice out of the box and a double-braided nylon rope that resists abrasion and UV exposure, this South Bend Rope Co 5/8" x 20' line is a practical choice for routine mooring and dock work.