What Is a Long Line?
A long line is an extended leash — typically ranging from 15 to 50 feet — used to give your dog freedom to explore while keeping them safely under your control. They're an essential tool for recall training, building confidence in fearful dogs, and exercising high-energy breeds in open spaces.
Key Factors to Consider
1. Material
The material of your long line makes a huge difference in durability, handling, and maintenance.
- Biothane is the gold standard for serious trainers. It's waterproof, easy to clean, doesn't absorb odors, and won't tangle or fray like rope or nylon. It glides smoothly through your hands and holds up to years of heavy use.
- Nylon is affordable but can cause rope burn, absorbs water and mud, and degrades faster with regular outdoor use.
- Rope is lightweight but tangles easily and is difficult to clean after muddy sessions.
For most dog owners and trainers, Biothane long lines offer the best long-term value.
2. Length
Choosing the right length depends on your training goals and environment:
- 15–20 feet — Great for beginners, smaller spaces, or dogs just starting recall training. Easier to manage and less likely to tangle.
- 33 feet — The most popular all-around length. Gives your dog plenty of freedom while keeping you in control during recall exercises.
- 50 feet — Best for open fields, advanced recall work, or giving large, high-energy breeds maximum range.
3. Width and Weight
Match the width of the long line to your dog's size:
- 3/8 inch (10mm) — Ideal for small to medium dogs. Lightweight and easy to handle.
- 1/2 inch (13mm) — A versatile choice for medium to large dogs. Offers a comfortable grip without being too heavy.
- 3/4 inch (19mm) — Best for large or powerful breeds that put serious pressure on the line.
4. Hardware
When it comes to long line construction, the hardware holding everything together matters just as much as the material itself. Double-capped rivets are the mark of a well-built long line — here's why they matter:
- Superior strength — Double-capped rivets create a mechanical bond that distributes load across a wider surface area. Unlike stitching or single-sided rivets, they won't pull through under sudden pressure — critical when a dog hits the end of the line at full speed.
- No weak points — Stitched connections can fray and degrade over time, especially on Biothane where adhesion is limited. Rivets create a permanent, maintenance-free connection that holds its integrity for the life of the line.
- Clean, low-profile finish — Double-capped rivets sit flush against the material, reducing snagging on brush, grass, or the dog's coat during dragging.
When evaluating a long line, check the attachment point where the snap meets the line — this is where the most stress occurs. A double-capped rivet (or two) at this junction is a sign of professional-grade construction built to last.
5. Handle or No Handle?
Most long lines are designed to be dragged on the ground — no handle needed. This allows your dog to move freely without getting tangled. However, if you plan to hold the line during training, a padded or looped handle at the end can improve comfort and grip.
Safety Tips for Using a Long Line
- Never attach a long line to a collar on a dog that pulls hard — always use a well-fitted back clip harness to protect their neck.
- Never loop the handle or excess leash around your hand or arms. You want to be able to quickly drop slack as the dog gets further away without letting the leash slide through your hand (this is how you get burns).
- Avoid long lines in areas with heavy foot traffic, bikes, or other dogs where tangling is a hazard.
- Check the hardware and rivets regularly for wear, especially at the snap attachment point.
Why Biothane Is the Best Choice for Long Lines
If you're serious about training, Biothane long lines are worth the investment. Unlike nylon or rope, Biothane won't absorb water, mud, or odors — making it easy to wipe clean after every session. It's flexible in cold weather, resistant to UV degradation, and built to last for years of daily use. The smooth surface also reduces the risk of rope burn if the line runs through your hands quickly.
Final Thoughts
The best long line for your dog is one that matches their size, your training environment, and your handling style. Start with a 30-foot Biothane long line in the appropriate width for your dog's size — it's the most versatile option for the majority of trainers and pet owners. As your dog's recall improves, you can adjust length and technique to suit your goals.
Have questions about which long line is right for your dog? Contact us — we're happy to help you find the perfect fit.
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