Nylon Double Braid Dock Lines

Our domestic nylon double braid dock lines are individually hand crafted with rope manufactured by Miami Cordage. Each dock line is hand spliced and whipped at the throat and bitter end of the line to ensure maximum strength and durability. We stock the most common lines to 5/8″ diameter however our splicing capability goes up to 3-5/8″ diameter.

The high strength, abrasion resistance & controlled elasticity of our nylon double braid dock lines make them the ideal choice for anchoring, docking, mooring & towing. The double braided construction & tough nylon fiber make up the strongest & most shock absorbing dock line available for these uses. The end result is dependability, long life & true value.

Features

• Whipped with Waxed Seine Twine, customize your lines with different color whipping to quickly identify different lengths
• Available diameters ranging from 3/8″ to 3-5/8″
• Eyes are hand spliced, whipped and sewn at throat and bitter end
• Protect your lines with Custom Chafe Gear in Cordura fabric, leather or dipped Urethane
• Choose from 16 vibrant colors or design your own Custom Rope to match your vessel

Part #	Nominal Diameter		Circ (in)	Tensile Strength (lbs)	Appx Wt per 100 Ft (lbs)
	Inch	MM
DLB38	3/8	10	1-1/8	4,100	3.60
DLB716	7/16	11	1-1/4	5,500	5.00
DLB12	1/2	13	1-1/2	7,300	6.50
DLB916	9/16	14	1-3/4	10,000	8.90
DLB58	5/8	16	2	14,600	11.50
DLB34	3/4	19	2-1/4	19,000	14.60
DLB78	7/8	22	2-3/4	28,100	22.00
DLB1	1	25	3	33,200	25.80
DLB118	1-1/8	29	3-1/2	44,600	35.00
DLB114	1-1/4	32	3-3/4	52,000	40.00
DLB1516	1-5/16	33	4	58,500	46.00
DLB112	1-1/2	38	4-1/2	74,000	58.00
DLB158	1-5/8	41	5	92,100	72.00
DLB134	1-3/4	44	5-1/2	109,500	87.50
DLB2	2	50	6	129,700	102.00
DLB218	2-1/8	54	6-1/2	152,500	121.50
DLB214	2-1/4	57	7	179,400	140.00
DLB212	2-1/2	64	7-1/2	196,000	159.00
DLB258	2-5/8	67	8	221,000	184.00
DLB234	2-3/4	70	8-1/2	237,000	204.00
DLB3	3	76	9	274,000	232.00
DLB314	3-1/4	83	10	339,000	285.00
DLB358	3-5/8	92	11	400,000	348.00

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.