White Double Braid, 1/2" x 600'

Heavy-Duty Dock Line in Bulk. 1/2" Double Braid Nylon, 600 Feet, White.

The Seachoice 1/2" x 600 Ft. White Double Braid Nylon Rope Spool steps up the diameter for larger vessels, higher-load dock line applications, and boatyards that need a premium bulk line supply in the most versatile color available. At 1/2", this is the standard dock line diameter for vessels in the 35–50+ foot range — heavy enough to handle surge loads and wind loads on larger boats, while still manageable to handle and coil.

Double braid construction — a braided core inside a braided cover — delivers superior strength, kink resistance, and abrasion resistance compared to twisted rope. High-grade nylon provides the elasticity needed to absorb sudden shock loads, protecting cleats, dock hardware, and the vessel itself when conditions get rough. White is the most popular dock line color for its clean, classic appearance and easy visibility at the dock.

Key Features

• Double Braid Construction — Braided core inside a braided cover for superior strength, flexibility, and kink resistance vs. twisted rope
• High-Grade Nylon — Excellent shock load absorption; stretches under load to protect vessel and dock hardware
• 1/2" Diameter — Heavy-duty sizing for larger vessels (35–50+ ft) and high-load dock line applications
• Long-Wearing — Durable construction resists abrasion and maintains strength over extended use
• Kink Resistant — Double braid lay resists kinking and hockling for clean coiling and deployment
• Versatile Application — Suitable for dock lines, anchor lines, mooring lines, and general marine rigging
• 600-Foot Bulk Spool — Cut to any length needed; ideal for outfitting multiple vessels or a full marina dock line inventory
• White — The most popular dock line color; clean, classic appearance with easy visibility at the dock

Specifications

• Brand: Seachoice
• Construction: Double Braid
• Material: High-Grade Nylon
• Diameter: 1/2" (12.7mm)
• Length: 600 ft (182.9m)
• Color: White
• Weight: 19.2 kg (42.3 lb)
• Part Number: 50-47010

For marina operators, boatyards, and serious boaters who need a premium bulk supply of heavy-duty dock line, the Seachoice 1/2" white double braid spool is the professional-grade choice.

⚓ Parts Desk Insight

• 1/2" is the standard for larger vessels: Typically used on vessels 35 feet and up. Customers with smaller boats (under 30 ft) are often better served by 3/8" line, which is lighter and easier to handle. Oversizing dock lines isn’t harmful, but it adds unnecessary weight and bulk.
• White shows dirt more than navy or black: White is the most popular dock line color for aesthetics, but it will show staining from dock lines, rust, and algae more visibly than darker colors. For high-traffic marina environments, some operators prefer navy or black for lower maintenance appearance.
• Bulk spool — cut and finish ends properly: This is a 600-foot spool, not pre-cut dock lines. Heat-seal, whip, or splice cut ends to prevent unraveling. At 1/2" diameter, a proper whipping or eye splice is recommended for finished dock line ends.
• Nylon for dock lines — not polypropylene: Nylon’s elasticity is what makes it the correct choice for dock and mooring lines. Polypropylene floats but lacks the stretch needed to absorb surge loads. Always specify nylon for dock line applications.