Value Brand Double Braid Dock Lines - Miami Cordage


Our imported value brand dock lines are made from nylon double braid rope and feature a 12″ spliced eye with whipping on the throat and bitter end. Available in black, royal blue, navy blue and white with standard diameters and lengths, refer to below chart for sizing.


  • Predictable & controlled elongation
  • Excels in strength & abrasion resistance
  • Spliced with 12″ eye, whipped at throat & bitter end

Important Color Information: Royal blue and navy blue are likely to bleed on first use and to a decreasing extent thereafter. We recommend allowing the lines to dry in an area that will tolerate the bleeding, especially after first use. Black and white lines are not known to bleed.

Miami Cordage also offers domestic nylon double braid with customized background color & tracers, refer to our Custom Rope link to design your custom rope.

Part # Nominal Diameter Circ
Inch MM
DLBV3815 3/8 10 1-1/8 15 4,100
DLBV3820 3/8 10 1-1/8 20 4,100
DLBV3825 3/8 10 1-1/8 25 4,100
DLBV1220 1/2 13 1-1/2 20 7,300
DLBV1225 1/2 13 1-1/2 25 7,300
DLBV1230 1/2 13 1-1/2 30 7,300
DLBV5825 5/8 16 2 25 14,600
DLBV5830 5/8 16 2 30 14,600


Compliance to the above specifications is based upon testing according to the Cordage Institute Standard Testing Methods for Fiber Rope and/or ASTM D-4268 Standard Methods of Testing Fiber Ropes.

Weights: are average and may vary +/- 5%.

Tensile strengths: Are approximate average for new, unused ropes. To estimate the minimum tensile strength of a new rope, reduce the approximate average by 15% (Cordage Institute defines minimum tensile strength as two standard deviations below the average tensile strength of the rope).

Nylon rope has three characteristics that make it ideal for dockline. Nylon rope is incredibly strong, it is very stretchy, and it resists the harmful effects of sunlight better than any of those fancy-name synthetics.

Nylon ropes value of strength is self-evident, but the benefits of elasticity may not be as obvious. When your boat surges against an unyielding dockline, the load on the line goes from zero to the maximum at the instant the nylon line comes taut. The likely consequence is a broken line-not unlike how you might snap a piece of thread with a jerk. Even if the nylon rope is strong enough not to break, it is hammering cleats and bitts with every surge. Nylon rope doesn’t come taut suddenly, but dissipates the load by stretching. It is like the difference between hitting the steering wheel or hitting the air bag.

As for nylon rope’s resistance to ultraviolet damage, docklines, particularly permanent docklines, live in the sun. Nylon lines enjoy a much longer life than other lines in that environment.