Rope Splicing: Three Splices Every Cruiser Should Know
Splicing isn't difficult. Teaching yourself the three essential splices — three-strand eye, double braid eye, Dyneema bury — takes a long afternoon. The payoff is decades of self-sufficiency on running rigging.
The three splices
1. Three-strand eye splice
The most fundamental splice. Used for snubbers, mooring lines, and traditional rigging. Five tucks under each strand for nylon; same for polyester. Learning resource: Brion Toss's videos remain the standard.
2. Double braid eye splice
The most-used splice on modern cruising boats. Used for halyards, sheets, control lines. The technique involves separating core and cover, inserting one into the other, and locking with cover tucks. Time investment: 2–3 hours of practice with one rope to get reliable.
3. Dyneema (12-strand) bury splice
The newest splice. Used for halyards, soft shackles, lazy jacks. Single-braid Dyneema makes this the easiest of the three splices to learn — feed the rope through itself. The Brion Toss / Selma Calou videos are excellent.
Tools needed
| Tool | Cost (USD) | Notes |
|---|---|---|
| Fid set (Selma or Samson) | $50–80 | Multiple sizes |
| Hot knife or razor | $20–40 | For clean cuts |
| Cigarette lighter | $1 | Sealing ends |
| Sailmaker's needles and waxed thread | $15–30 | Whipping |
| Total kit | $80–150 | One-time |
Why it matters
A new halyard with rigger-spliced eyes costs roughly $40–80 for the splicing labour alone, on top of $150–300 in materials. Doing your own splices means a new halyard costs the rope only. Multiply by every line on a 40-foot boat over 10 years of cruising and the savings exceed the cost of a substantial refit project.
Learning resources
- Brion Toss splicing videos (YouTube — free)
- Samson Rope tutorials (manufacturer site)
- "The Complete Rigger's Apprentice" by Brion Toss (book)
- Practice ropes — buy a few meters of cheap line specifically for practice
Frequently asked questions
Hardest splice?
Double braid. Three-strand and Dyneema both easier.
How long to learn?
A long afternoon for each. Mastery: weeks of occasional practice.
Tools?
Fid set, hot knife, $80–150 total.
Strength of spliced eye?
90–95% of rope strength when done correctly. Stronger than most knots.
Where to practice?
Cheap practice rope. Don't learn on critical lines.