custom rope maker

Anchor Lines


The Best Custom Boat Lines, Custom Colored Ropes, & Special Assemblies made to Your Specifications


Common Definitions & Nautical Terms

Thimble (Hard Eye) — Anchor Lines are provided with a thimble eye splice on one end, which provides for chafe protection for an anchor shackle. An anchor shackle connects the thimble eye of the anchor line directly to the anchor or in most applications a chain rode. 3, 8, and 12-strand strand nylon anchor lines can be spliced directly to the chain rode. The bitter end (free end) of the anchor line is made fast to the boat’s cleat or bow eye ring and the slack adjusted for tension (slack removed) using a cleat hitch.

Capstan — Boats may be provided with a vertical-axles rotating machine for adjusting anchor rodes and mooring lines. Capstans are more liberal as to the type of rope construction they can be applied to.

Windlass — Boats may be provided with a horizontal-axles rotating machine for adjusting anchor rodes and mooring lines. Windlasses are more specific to the type of rope construction. A windlass might well be provided with a chain gypsy or wildcat for hauling in the windlass anchor chain. The Windlass manufacturer is very specific to what style of chain link that can fit their gypsy or wildcat.

Winch — Boats may be provided with a hand-cranked rotating machine for adjusting boat lines (halyard lines on a sailboat Winches are more liberal as to the type of rope construction they can be applied to.

Proof Coil Anchor Chain — For many applications, a long nylon anchor line connected to a chain rode is adequate. Boats without a windlass can use standard Proof Coil Anchor Chain.

Windlass Anchor Cain Larger boats; especially, ocean going are provided with a chain windlass. Windlasses require either BBB Chain or G4 High Test Chain depending on the manufacturer’s specifications. The type of rope construction is also specified by the windlass manufacturer.

Rode Chain has two purposes. First, the chain portion of the rode will resist chafe that would otherwise occur if a nylon line was lying along the bottom. Secondly, the weight of the chain portion has the effect of keeping the angle of pull on the anchor low, which keeps the anchor flukes dug in.

Anchor Rode Package — An example of a windlass rode package is 200-600 feet of windlass grade 3-strand twisted nylon, 8 or 12-strand plaited nylon line spliced directly to 6 to 25 feet of 1/4” – 1/2” windlass specified chain (G4 HT or BBB). The chain is connected via a shackle or anchor swivel to an adequately sized anchor. Seize the shackle pin with a nylon cable tie or s/s wire. If the boat does not have a windlass, one can use double braid nylon or standard 3-strand nylon with proof coil anchor chain.

Scope is defined as the ratio of water depth (draft plus freeboard) divided into the length of anchor line paid out. The typical minimum scope is from 3-5 with 7 being the best practical. The larger the scope ratio, the better the holding power of the anchor because the angle of pull on the flukes remains low. However, during a bad storm an even larger scope should be used i.e. (10:1).

Scope Ratio Example — For a 40ft water depth (including draft and freeboard) and a scope ratio of 5 desired, then the length of anchor line to be paid out is 200ft (5 x 40).

Small Scope Ratio increases the angle of pull and reduces the holding power of the anchor flukes. Heavy rode chain and can be used to mitigate this from occurring. The heavier chain will help keep the angle of pull low when the scope ratio is low.

Scope Holding Power — Consider the following scope ratios and % anchor holding power: 2:1=10%, 3:1=40%, 5:1=70%, 10:1=100%.

Wind Speed — As the wind speed doubles the holding power of the anchor quadruples. Consider having a spare emergency anchor / anchor line available in case an anchor line gets cut, gets stuck, and or for bad storm conditions (storm lines / storm anchor lines).

Equipment — The anchoring system includes any of the following: anchor line, capstan, windlass, winch, deck cleat, anchor chain, shackles, splices, thimbles, and the anchor. All of these should be checked regularly for wear and all be sized properly.

Anchor Setting and Retrieval — With the line paid out at the proper scope, back down on the anchor line very slowly and con rm the anchor is set. To retrieve move over the anchor pulling the slack up. Snub the line on a cleat and back down to pull the anchor out.

Augers (shoreline applications) — As an alternate to using anchors, a boat owner may use augers. Set one auger to the lake bottom to secure the bow and set another auger on shore to secure the stern. Here a variety of mooring lines can be utilized like anchor lines, dock lines, plain straight lines, and or custom mooring lines. The bow line may have a chain rode attached. Both mooring lines might well be fitted with buoys or rope oats; especially, the bow connection. The bow and stern lines will have some type of hardware required to make the connections to the boat like swivel eye hooks or spring clips. 

Shoreline Mooring (Shore Lines) — For many inland applications, a power boat is moored from the lake shore where the bow faces outward to the lake and the stern faces the shore. The bow is moored using an anchor line secured to the lake bottom, while the stern is moored to an anchor line secured to the shoreline. The bow mooring line may have a chain rode attached. Both mooring lines might well be fitted with buoys or rope oats; especially, the bow connection. Note, Augers can be used instead of anchors for this application. The bow and stern lines will have some type of hardware required to make the connections to the boat like swivel eye hooks or spring clips. 

Concerning The Anchor Line / Mooring Line Table Of Part Numbers Please consider that many of our anchor line requests are for double braid nylon construction; however, we can generally utilize any of the rope materials described in Chapter 2 “Rope Selection Guide” and Chapter 5 “Bulk Rope”. Most common examples are for custom made-to-order windlass anchor rode assemblies using 3-strand heat set nylon rope, 8-strand nylon plait, 12-strand nylon plait, with a direct splice to some custom length of chain rode, and associated hardware. Note there are additional diameters and rope lengths available upon request. Note that a 300 foot minimum production run may apply. Do not see what you are looking for, just ask.

Anchor Lines - 3-strand anchor line tableClick Here to Download Denver Rope - Anchor Lines & Mooring Lines 3-Strand Nylon Part Number Table

Anchor Lines - Mooring Lines DBN Part Number TableClick Here to Download Denver Rope - Anchor Lines & Mooring Lines DBN Part Number Table

Anchor Lines - Mooring Lines DBN Part Number TableClick here to Download Our Boatline and Hardware Selection Guide PDF
Anchor Line Scope Ratio Diagram
Anchor Lines how to proper anchor scope Anchor Rode Anchor Chain Snubbers
Anchor Line Assembly Diagram

Anchor Line Assembly Diagram

Anchor Rode Assembly Diagram
Anchor Rode Diagram
Anchor Lines steel thimble splice and bow shackle

A stainless steel thimble splice and bow shackle, which can be used to connect to a length of proof coil anchor chain or directly to an anchor. In this case the rope is black double braid nylon rope “yacht braid”. Note the hand sewing and whipping of the thimble splice. There are a wide selection of hardware and rope construction options available to pleasure marine applications (non-windlass and non-capstan applications). Give us a call to discuss your requirements.

Anchor Lines custom anchor line Rope Chain Splice

A Direct Rope-to-Chain Splice most often applied to Windlass and Capstan applications utilizing 3-Strand Heat Set, 8-Strand Plait, or 12-Strand Plait white nylon rope. The chain link size is most often either BBB or G4HT. Consult the windlass or capstan manufacturer owner’s manual to determine the rope and chain requirements.

 
Anchor Lines custom eye-and-jaw anchor swivel wench

An example of a Capstan on the bow area of a boat. The anchor rode drops down through the guide hole tting into the anchor locker. In this example, a galvanized anchor shackle is connected to a standard type eye-and-jaw anchor swivel, which connects to the anchor.

Anchor Lines high performance stainless steel anchor swivelsWe offer a selection of high performance stainless steel and galvanized anchor swivels most often used to connected the anchor chain to the anchor. The premium high performance streamlined designs above are most often applied to applied to Windlass and Capstan applications, but can also be applied to pleasure marine applications. We also offer a wide selection of standard swivels in various combinations (eye / jaw) in either galvanized or stainless steel. All our Anchor Lines / Anchor Rodes are custom made-to-order.


Shore Anchor Line Diagram
Anchor Lines - how to anchor line auger anchor shoreline


Anchor Line Selection Process
1. Choose Rope Diameter
2. Choose Rope Length
3. Choose Rope Color / Combination
4. Our anchor lines come standard with a stainless steel thimble splice on one end (or galvanized if prefer). The thimble can be further specified as heavy duty (stainless steel or galvanized). We assume the other end of the anchor line is bitter. 5. Choose an optional stainless steel (or galvanized if prefer) Bow Shackle, Anchor Shackle, or Anchor Swivel.
6. Choose optional anchor chain (proof coil or windlass grade (G4 HT or BBB) & in stainless steel or galvanized)
7. Repeat Selection Process for each Anchor Line

Note: All lines are custom made-to-order and further customization can be specified (i.e. double ended lines). Double Braided Lines are whipped and sewn at the throat of the splice and at the bitter end.

Solid Rope Colors
Please continue to our ROPE COLORS webpage to consider the available rope col- ors and read the applicable restrictions. If not otherwise specified, Solid Black or White is typically the default rope color. [Continue to ROPE COLORS webpage]

Anchor Lines - Rope Colors

Custom Color Combinations
We offer 5 customizable rope patterns on the double braid rope machines. Please continue to our DENVER ROPE MIXER webpage to design your double braid custom color combination and read the applicable restrictions. [Continue to DENVER ROPE MIXER webpage]

Anchor Lines Custom Color Combinations

Double Braid Nylon Anchor Line Solid Colors
We offer the following Solid Color Anchor Lines: White Anchor Lines, Navy Blue Purple Anchor Lines, Black Anchor Lines, Yellow Anchor Lines, Gold Anchor Lines, Orange Anchor Lines, Light Blue Anchor Lines, Light Grey Anchor Lines, Royal Blue Anchor Lines, Red Anchor Lines, Burgundy Anchor Lines, Brown Anchor Lines, Teal Anchor Lines, Kelly Green Anchor Lines, Hunter Green Anchor Lines, Graphite Grey Anchor Lines, Purple Anchor Lines. Restrictions may apply as inventory and production timing fluctuate.

Double Braid Nylon Anchor Line Combination Colors
In limited diameters we offer the following Denver Rope Mixer Combination Color Patterns of the shelf: Gold-White Half / Half, Navy Blue-White Half / Half, Hunter’s Camouflage, and Ocean Commotion. Restrictions may apply as inventory and production timing fluctuate.

Double Braid Polyester Rigging and Halyard Line Solid Colors
We offer the following Solid Color Lines: White Halyard Lines, Black Halyard Lines, Yellow Halyard Lines, Bright Orange Halyard Lines, Royal Blue Halyard Lines, Red Halyard Lines, Kelly Green Halyard Lines, Pink Halyard Lines, Tan Halyard Lines. Restrictions may apply as inventory and production timing fluctuate.

Double Braid Polyester Rigging and Halyard Line Combination Colors
In limited diameters we offer White Background with 1 Single Tracer Color.

Anchor Line Rope Construction
We offer the following types of Anchor Lines: Double Braid Nylon Anchor Lines, 3-Strand Nylon Anchor Lines, 3-Strand Heat-Set Nylon Anchor Lines, 8-Strand Nylon Anchor Lines, and 12-Strand Nylon Anchor Lines, Except for double braid, these rope types can be directly spliced to anchor chain. Our Anchor Lines are Custom Made-to-Order.

Anchor Rode & Windlass Applications
For Anchor Rode Applications where the anchor rope is directly spliced to anchor chain & for windlass applications. [Continue to ANCHOR RODE & WINDLASS CHAIN webpage]

Whipping Twine
Double Braid Lines are whipped with waxed seine twine at the eye splice throat and bitter end. The splicer will choose the closet whipping twine color match for your lines unless otherwise specified. Consider to select a different whipping twine color for each set of lines. Lines other than double braid construction may be whipped for an additional charge. [Continue to WHIPPING TWINE webbage]

Rope Strength Guide
For a Table of Rope Diameters and Tensile Strengths for different Rope Types, please continue to our ROPE STRENGTH GUIDE webpage. [Continue to ROPE STRENGTH GUIDE webpage]

Anchor LinesClick Here to Download Catalog PDF, View Chapter 8, “Anchor Lines”

General Marine Hardware - For information on General Marine Hardware and subsequent detailed webpages to include, Anchors, Anchor Chain, Galvanized Hardware, Stainless Steel Hardware, and Security Hardware:

[Continue to GENERAL MARINE HARDWARE webpage]

[Continue to ANCHORS webpage]

[Continue to ANCHOR CHAIN webpage]

[Continue to GALVANIZED HARDWARE—MAIN PAGE webpage. Scroll to the bottom of this webpage for additional hardware specific links]

[Continue to STAINLESS STEEL HARDWARE—MAIN PAGE webpage. Scroll to the bottom of this webpage for additional hardware specific links]

[Continue to SECURITY HARDWARE—MAIN PAGE webpage]


Anchor Line Important Information for the Customer - Please consider an Anchor Line is also considered a Mooring Line or Mooring Rope. An Anchor Line, Mooring Line, Mooring Rope can be specified with additional design features as needed to be used as a Tow Line, a Recovery Rope, a Mooring Pendant, an Anchor Chain Snubber, a Houseboat Shore Line, a component of a Tow Bridle Assembly, etc.

Please consider the customer can generally select any of the other types of Rope Fibers / Rope Construction as identified on the Rope Selection Guide. Double Braid Nylon is 95% of our Mooring Line Business and is given our Special Attention. Other common rope fiber construction used for Mooring Lines are 3-Strand Nylon and 12-Strand Nylon.

Typical minimum length of our double braid nylon mooring lines is 6ft overall length. For shorter lengths we select 3-Strand Nylon.

Because we are Both the Rope Manufacturer and Rope Splicer, please select the Footage (rounded to the nearest foot) for your application.

Anchor Lines - custom ropeClick Here to Download Denver Rope - Anchor Lines & Mooring Lines DBN Part Number Table


NYLON DOUBLE BRAID (Yacht Braid)
Part Number Nominal Diameter     Nominal Circumference   Tensile Strength Color Code
p/n prefix inches decimal mm inches mm pounds lb. p/n suffix
ALB38 3/8" 0.375 9.5 1.2 29.9 4,100 Black = 1
ALB12 1/2" 0.500 12.7 1.6 39.9 7,300 Royal Blue = 2
ALB58 5/8" 0.625 15.9 2.0 49.9 14,600 Burgundy = 3
ALB34 3/4" 0.750 19.1 2.4 59.0 19,000 Kelly Green = 4
ALB78 7/8" 0.875 22.2 2.8 69.8 28,100 Orange = 5
ALB1 1-0" 1.000 25.4 3.1 79.8 33,200 Red = 6
ALB118 1-1/8" 1.125 28.6 3.5 89.8 44,600 Yellow = 7
ALB114 1-1/4" 1.250 31.8 3.9 99.8 52,000 White = 8
ALB112 1-1/2" 1.500 38.1 4.7 119.7 74,000 Gold = 9
ALB158 1-5/8" 1.625 41.3 5.1 129.7 92,100 Brown = B
ALB134 1-3/4" 1.750 44.5 5.5 139.7 109,500 Light Grey = G
ALB2 2-0" 2.000 50.8 6.3 159.7 129,700 Graphite Grey = GG
ALB218 2-1/8" 2.125 54 6.7 169.6 152,500 Navy Blue = N
ALB214 2-1/4" 2.250 57.2 7.1 179.6 179,400 Purple = P
ALB212 2-1/2" 2.500 63.5 7.9 199.6 196,000 Teal = T
ALB258 2-5/8" 2.625 66.7 8.2 209.6 221,000 Hunter Green = H
ALB234 2-3/4" 2.750 69.9 8.6 219.5 237,000 Baby Blue = BB
ALB3 3-0" 3.000 76.2 9.4 239.5 274,000 Gold/White = 98
ALB314 3-1/4" 3.250 82.6 10.2 259.4 339,000 Navy/White = N8
ALB358 3-5/8" 3.625 92.1 11.4 289.4 400,000 *Ocean Camo = OCC
              *Hunter Camo = CAMO

Most common color is solid black and is the assumed default color. White is assumed in the larger diameters
* CAMO patterns may require additional minimum footage requirements at the discretion of the production manager
Not every color is commonly available as the rope diameter increases and may require additional min footage requirements
Special production runs on the braiding machine require a minimum of 300ft at the discretion of the production mgr.
Denver Rope Mixer color runs on the braiding machine require a minimum of 300ft at the discretion of the production mgr.
Typical turn-around splicing time for in-stock rope = 1-2 weeks + ship time
Typical turn-around for new rope production + splicing time = 4-5 weeks + ship time

  PART NUMBER DEVELOPMENT => PART NUMBER + FOOTAGE TO THE NEAREST FOOT + COLOR CODE + DESCRIPTIONS
3/4" x 150ft - Navy/White DBN Anchor Line => ALB34 + 150 + N8 = ALB34150N8 + Thimble Type (Galvanized STD) + Special Options
ALB34150N8 Anchor Line
ALB34150N8 Anchor Line with a Light Duty S/S Thimble Splice and a 1/2" S/S Bow Shackle
ALB34150N8 Anchor Line with a Galvanized Heavy Duty Wire Rope Thimble Splice Each End
ALB34150N8 Anchor Line with a S/S Heavy Duty Wire Rope Thimble Splice One End. Other End with an 18" covered eye splice.
Not sure? Simply Describe the Anchor Line in detail and how each end of the line is to be made up. Please email, call, and ask

ANCHOR LINE SELECTION PROCESS

  1. Choose Rope Diameter
  2. Choose Rope Length. Note typical minimum DBN splicing length = 6ft. Otherwise 3-Strand Nylon is used
  3. Choose Rope Color / Combination
  4. Our anchor lines come STD with a galvanized thimble splice on one end (or optional Lt duty stainless steel). The thimble can be further specified as heavy duty (stainless steel or galvanized). We assume the other end of the anchor line is bitter.
  5. Choose an optional stainless steel or galvanized Bow Shackle, Anchor Shackle, or Anchor Swivel.
  6. Choose optional anchor chain (proof coil or windlass grade (G4 HT or BBB) & in stainless steel or galvanized)
  7. Repeat Selection Process for each Anchor Line
  8. You may select a separate whipping twine color for each set of Anchor Lines, otherwise the splicer chooses a common color


Note: All lines are custom made-to-order and further customization can be specified for your application. Double Braided Lines are whipped and sewn at the throat of the splice and at the bitter end.

For customer service and inquiries please call John 303-809-7274 or email john@denverrope.com
www.denverrope.com

Anchor Lines custom ropeClick Here to Download Denver Rope - Anchor Lines & Mooring Lines 3-Strand Nylon Part Number Table

3-STRAND NYLON
Part Number Nominal Diameter     Nominal Circumference   Tensile Strength Color Code
p/n prefix inches decimal mm inches mm pounds lb. p/n suffix
AL38 3/8" 0.375 9.5 1.2 29.9 3,700 Black = 1
AL12 1/2" 0.500 12.7 1.6 39.9 6,400 White = 8
AL58 5/8" 0.625 15.9 2.0 49.9 10,400
AL34 3/4" 0.750 19.1 2.4 59.0 13,800
AL78 7/8" 0.875 22.2 2.8 69.8 20,000
AL1 1-0" 1.000 25.4 3.1 79.8 25,000
AL114 1-1/4" 1.250 31.8 3.9 99.8 37,500
AL112 1-1/2" 1.500 38.1 4.7 119.7 53,000
AL2 2-0" 2.000 50.8 6.3 159.7 90,000
AL212 2-1/2" 2.500 63.5 7.9 199.6 125,000
AL3 3-0" 3.000 76.2 9.4 239.5 274,000
Most common color is solid black and is the assumed default color. White is assumed in the larger diameters
Additional Solid Colors and Combinations require a Special Production Run at the discretion of the production mgr.
Typical turn-around splicing time for in-stock rope = 1-2 weeks + ship time
Typical turn-around for new rope production + splicing time = 4-5 weeks + ship time

PART NUMBER DEVELOPMENT => PART NUMBER + FOOTAGE TO THE NEAREST FOOT + COLOR CODE + DESCRIPTIONS
5/8" x 250ft - White 3-Strand Nylon Anchor Line => AL58+ 250 + 8 = AL582508 + Thimble Type (Galvanized STD) + Special Options
AL582508 Anchor Line
AL582508 Anchor Line with a Light Duty S/S Thimble Splice and a 1/2" S/S Bow Shackle
AL582508 Anchor Line with a Galvanized Heavy Duty Wire Rope Thimble Splice Each End
Anchor Line with a 18" Covered Eye Splice One End. Other End with a Heavy Duty Galvanized Thimble Splice Not sure? Simply Describe the Anchor Line in detail and how each end of the line is to be made up. Please email, call, and ask

  ANCHOR LINE SELECTION PROCESS
  1. Choose Rope Diameter
  2. Choose Rope Length. Note typical minimum DBN splicing length = 6ft. Otherwise 3-Strand Nylon is used
  3. Choose Rope Color / Combination
  4. Our anchor lines come STD with a galvanized thimble splice on one end (or optional Lt duty stainless steel). The thimble can be further specified as heavy duty (stainless steel or galvanized). We assume the other end of the anchor line is bitter.
  5. Choose an optional stainless steel or galvanized Bow Shackle, Anchor Shackle, or Anchor Swivel.
  6. Choose optional anchor chain (proof coil or windlass grade (G4 HT or BBB) & in stainless steel or galvanized)
  7. Repeat Selection Process for each Anchor Line
  8. 3-Strand Lines are NOT whipped at the splice throat and bitter end, but you may purchase whipping and select a separate whipping twine color for each set of dock lines.

For customer service and inquiries please call John 303-809-7274 or email john@denverrope.com
www.denverrope.com




tow lines custom rope For customer service and inquiries please call John 303-809-7274 or email john@denverrope.com
www.denverrope.com

Contact Us – Request Quotation

Call (303) 809-7274

Email john@denverrope.com