• Home
  • Shopping
    • Boat Seats
    • Chartplotters
    • Dock & Boat Cleats
    • Dock Lines
    • Dry Bags
    • Fenders
    • Fender Cleats & Holders
    • Fender Covers
    • Fishfinders
    • Handheld GPS Units
    • Inflatable Dinghies
    • Kayaks
    • Kayak Paddles
    • KeelGuard Keel Protectors
    • Pelican Waterproof Marine Boxes
    • PFDs — Adult
    • PFDs — Children’s
    • PFDs — Dogs
    • PFDs — Infant
    • Propellers
      • Left-Hand Propellers
      • Right-Hand Propellers
      • Stainless Steel Propellers
  • Archives
  • About Tom
  • Privacy Policy
  • Contact Us
  • Sitemap
  • Favorite Links

Tropical Boating

Stories about Boats and Boating

  • Sailing
    • Races & Regattas
    • Sailboat Cruising
    • Sailboat Reviews
  • Powerboating
  • Kayaking
  • Fishing
  • Boat Handling
  • Repairs & Upgrades
  • Equipment & Gear
    • Dinghies
  • Boat Building
  • Boating Fun
  • Boating Safety
  • General
    • Trail Camera Pictures
You are here: Home / Boating Equipment / Dock Lines

Dock Lines

March 31, 2010 By Tom Leave a Comment

Dock lines should be replaced as needed when they show signs of wear. Dock lines should be replaced as needed when they show signs of wear.

 

Here's a guideline for the diameter sizes appropriate for different boat sizes:
Length of Boat Recommended Diameter of Dock Line
Up to 27' 3/8"
28'-31' 7/16"
32'-36' 1/2"
37'-45' 5/8"
46'-54' 3/4"
55'-63' 7/8"
64'-72' 1"

Dock lines should be inspected regularly and replaced as needed when they show signs of chafing, wear or stiffness. If just a few feet of line near the end are chafed, you can often postpone purchasing new dock lines by cutting off the last few feet and making a new eye splice, but eventually the line will need to be replaced.

Don't forget to check the spare dock lines in your boat's locker or lazarette. If you don't use them very often, you might be surprised at how old and stiff your transient dock lines can get just sitting below in the bottom of the lazarette. You don't want an unpleasant surprise when you go to use them for the first time in months.

Dock lines should be made of nylon for the best combination of strength and elasticity. Nylon is strong and durable, and because it's "stretchy," it can absorb the shock of the additional load when waves or wakes shove your boat around. Low-stretch lines made of other materials, such as polyester, can break, or loosen or tear out your cleats.

Three-strand dock lines are the most affordable and the easiest to splice. Double-braid lines are somewhat stronger than three-strand, but have less stretch.

Your bow and stern lines should be about two-thirds the length of your boat. Spring lines should be about as long as the boat itself. The diameter of the line needs to be larger for larger boats. For smaller boats, a smaller diameter line can be used, but don't go below about 3/8", because the line becomes harder to handle and hold onto, and very small diameter lines will stretch too much and wear out earlier.

  • Shop for Dock Lines
  • Shop for Dock Lines on eBay
  • Make Your Own Fenderboards

Filed Under: Boating Equipment Tagged With: docking, dock lines

Leave a Reply Cancel reply

You must be logged in to post a comment.

Newer: My Kayak Buying Habit: Buying a Fleet of Kayaks on the Way to the Kayak of my Dreams
Older: Conquistador Cup Regatta 2010: Charlotte Harbor Sailing Races

This site contains affiliate links for which I may be compensated

Recent Posts

  • BOTE Aero Rover Inflatable SUP MicroSkiffs!
  • ePropulsion Electric Outboard On A Picnic Cat
  • Com-Pac Picnic Cat Fun!
  • Selling the Stray Goat
  • June 2021 Stray Goat Projects

Topics

  • Boat Building (5)
  • Boat Handling (10)
  • Boat Repairs & Upgrades (50)
  • Boating Equipment (27)
    • Dinghies (4)
  • Boating Fun (30)
  • Boating Safety (7)
  • Buying & Selling Boats (5)
  • Classic Boating Tales (25)
  • Fishing (16)
  • General (37)
    • Drone Stuff (3)
    • Trail Camera Pictures (18)
    • Tropical Fruiting (1)
  • Kayaking (22)
  • Powerboating (18)
  • Sailing (71)
    • Races & Regattas (14)
    • Sailboat Cruising (15)
    • Sailboat Reviews (7)

Most Popular

  • The Perfect Solo Mast-Raising System for Small Sailboats
  • How to Dock an Outboard or Sterndrive Powerboat in 3 Easy Pictures
  • Small Outboard Engine Tilt and Trim: Theory and Practice
  • Tying Boats to Docks Using Springlines
  • Deep V, Shallow V, or Variable Deadrise Hull Performance

Shopping

  • Anchors
  • Boat Paddles
  • Boat Seats
  • Cam Cleats
  • Dock & Boat Cleats
  • Dock Lines
  • Dry Bags
  • Fenders
  • Fender Cleats & Holders
  • Fender Covers
  • Fishing
    • Fishing Reels
      • Spinning Reels
        • Abu Garcia Spinning Reels
        • Daiwa Spinning Reels
        • KastKing Spinning Reels
        • Okuma Spinning Reels
        • Penn Spinning Reels
        • Pflueger Spinning Reels
        • Quantum Spinning Reels
        • Shakespeare Spinning Reels
        • Shimano Spinning Reels
        • Zebco Spinning Reels
      • Baitcasting Reels
      • Spincast Reels
    • Rod & Reel Combos
      • Abu Garcia Rod & Reel Combos
      • Baitcast Rod & Reel Combos
      • Okuma Rod & Reel Combos
      • Quantum Rod & Reel Combos
      • Shakespeare Rod & Reel Combos
      • Spinning Rod & Reel Combos
      • Ugly Stik Rod & Reel Combos
    • Tackle Boxes & Bags
      • Tackle Bags
      • Tackle Boxes
      • Fly Boxes
      • Fishing Backpacks
  • Inflatable Dinghies
  • Inflatable Kayaks
  • Inflatable SUPs
  • Kayaks
  • Kayak Paddles
  • KeelGuard Keel Protectors
  • Marine Electronics
    • Autopilots
    • Chartplotters
    • EPIRBs
    • Fishfinders
    • Fixed-Mount VHF Radios
    • Handheld GPS Units
    • Handheld VHF Radios
  • Pelican Waterproof Marine Boxes
  • PFDs
    • Fishing PFDs
    • Inflatable PFDs
    • Kayaking PFDs
    • Survival PFDs
    • Survival Suits & Immersion Suits
    • PFDs for Infants
    • PFDs for Children
    • PFDs for Adults
    • PFDs for Dogs
    • Throwable (Type IV) PFDs
  • Propellers
    • Right-Hand Propellers
    • Left-Hand Propellers
    • Aluminum Propellers
    • Stainless Steel Propellers
    • Three-Blade Propellers
    • Four-Blade Propellers

Recent

  • BOTE Aero Rover Inflatable SUP MicroSkiffs!
  • ePropulsion Electric Outboard On A Picnic Cat
  • Com-Pac Picnic Cat Fun!
  • Selling the Stray Goat
  • June 2021 Stray Goat Projects

Popular

  • The Perfect Solo Mast-Raising System for Small Sailboats
  • How to Dock an Outboard or Sterndrive Powerboat in 3 Easy Pictures
  • Small Outboard Engine Tilt and Trim: Theory and Practice
  • Tying Boats to Docks Using Springlines
  • Deep V, Shallow V, or Variable Deadrise Hull Performance
  • The Com-Pac Sun Cat: A Review
  • Building a Live Bait Well For A Small Boat
  • Choosing the Right Propeller For Your Boat
  • Rebuilding Whaleboat Tenders Part 5: Boat Parts Shopping Day
  • More Boston Whaler Modifications

About Tom

Starting with the little two-person inflatable raft I had as my very first boat, I have always loved the freedom and the feeling of being out on the water. With my father's help, I added a hard plywood floor to that little inflatable, and that was the beginning of a long chain of boats I have owned, loved, maintained, modified, fixed, enjoyed, and scared myself to death on over the past few decades. [Read More …]

Topics

  • Boat Building (5)
  • Boat Handling (10)
  • Boat Repairs & Upgrades (50)
  • Boating Equipment (27)
    • Dinghies (4)
  • Boating Fun (30)
  • Boating Safety (7)
  • Buying & Selling Boats (5)
  • Classic Boating Tales (25)
  • Fishing (16)
  • General (37)
    • Drone Stuff (3)
    • Trail Camera Pictures (18)
    • Tropical Fruiting (1)
  • Kayaking (22)
  • Powerboating (18)
  • Sailing (71)
    • Races & Regattas (14)
    • Sailboat Cruising (15)
    • Sailboat Reviews (7)

Links

  • Antique Fishing Tackle
  • Big Air Wakeboards
  • Binocular Bargains
  • Boat Parts Online
  • Boat Seats for Sale
  • Boat Wear Bargains
  • Boating Memorabilia
  • Discount Marine Electronics
  • Ice Fishing Shop
  • Maritime Antiques
  • Nautical Motif Gifts & Decor
  • Slingin' Steel Spearfishing Bargains
  • Sun Cat National Championship Regatta
  • Tropical Affiliate Marketing
  • Tropical Web Works
  • Tying Flies

Shopping

  • Anchors
  • Boat Paddles
  • Boat Seats
  • Cam Cleats
  • Dock & Boat Cleats
  • Dock Lines
  • Dry Bags
  • Fenders
  • Fender Cleats & Holders
  • Fender Covers
  • Fishing
    • Fishing Reels
      • Spinning Reels
        • Abu Garcia Spinning Reels
        • Daiwa Spinning Reels
        • KastKing Spinning Reels
        • Okuma Spinning Reels
        • Penn Spinning Reels
        • Pflueger Spinning Reels
        • Quantum Spinning Reels
        • Shakespeare Spinning Reels
        • Shimano Spinning Reels
        • Zebco Spinning Reels
      • Baitcasting Reels
      • Spincast Reels
    • Rod & Reel Combos
      • Abu Garcia Rod & Reel Combos
      • Baitcast Rod & Reel Combos
      • Okuma Rod & Reel Combos
      • Quantum Rod & Reel Combos
      • Shakespeare Rod & Reel Combos
      • Spinning Rod & Reel Combos
      • Ugly Stik Rod & Reel Combos
    • Tackle Boxes & Bags
      • Tackle Bags
      • Tackle Boxes
      • Fly Boxes
      • Fishing Backpacks
  • Inflatable Dinghies
  • Inflatable Kayaks
  • Inflatable SUPs
  • Kayaks
  • Kayak Paddles
  • KeelGuard Keel Protectors
  • Marine Electronics
    • Autopilots
    • Chartplotters
    • EPIRBs
    • Fishfinders
    • Fixed-Mount VHF Radios
    • Handheld GPS Units
    • Handheld VHF Radios
  • Pelican Waterproof Marine Boxes
  • PFDs
    • Fishing PFDs
    • Inflatable PFDs
    • Kayaking PFDs
    • Survival PFDs
    • Survival Suits & Immersion Suits
    • PFDs for Infants
    • PFDs for Children
    • PFDs for Adults
    • PFDs for Dogs
    • Throwable (Type IV) PFDs
  • Propellers
    • Right-Hand Propellers
    • Left-Hand Propellers
    • Aluminum Propellers
    • Stainless Steel Propellers
    • Three-Blade Propellers
    • Four-Blade Propellers

Back to Top
Contact Us · Privacy Policy & Disclosure

Copyright © 2007-2025 · Tropical Boating
Site managed by Tropical Web Works