Finished bridle leather dog leash with a brass snap and stitched handle loop coiled on a wooden workbench.
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A Bridle Leather Dog Leash Built to Be Handled

ByPeter Joeseph 'Briefcase Maker' Kalafatis

A belt holds up your trousers. A leash holds onto something with its own ideas.

A bridle leather dog leash is tack, and it should be built like tack: a strap of heavy, waxed, vegetable-tanned leather with metal at one end and a hand at the other, asked to take a sudden hard pull from a living animal while the hand holding it is wet, cold, or full of coffee. A belt has the easier life. It carries a steady load, sits still, and never lunges at a squirrel. I burnish dog leashes as well as briefcase edges, and one plain question decides how a leash ought to be built. What does it have to survive that a belt never does?

Video: Burnishing A Dog Leash, from Marcellino NY Briefcase Maker on YouTube.

What a leash takes that a belt never does

Three loads: the hand, the weather and the jolt.

Hands burnishing the edge of a bridle leather dog leash strap with a wooden slicker.

Start with the size of the thing. The American Kennel Club’s guide to choosing a dog leash puts standard flat leashes at four to six feet. It advises a narrow, light leash for a small dog and a thicker, wider, heavier one for a big dog or one not yet trained, partly to prevent leash burn. It also says every leash needs “a sturdy metal clip,” and notes that some owners find leather the most comfortable material to hold.

Those three lines are the whole design brief. Length sets how much strap you cut, and a six-foot leash wants a long, clean run of hide with no flaw anywhere in it. Width and weight match the dog, not your taste. The clip is the one part that is not leather, and it carries every pound the leather does.

Now the loads. The first is the hand. A leash gets gripped hard, wrapped, let slip and grabbed again, every day, so its edges work against skin in a way a belt edge never has to. The second is weather: rain, puddles, a wet dog shaking off next to your knees. My Leather Care page is blunt about it: “No leather conditioner is waterproof.” The AKC comes at it from the other side, advising that leather “does not benefit from a water bath” and should be wiped with a damp sponge instead.

The third load is the one that matters.

A belt never gets yanked from a standing start. A leash does, at an angle, at the clip end, with no warning, and every joint between your fist and the collar has to take that jolt the way a hammer handle takes the blow, again and again, without loosening at the head.

Bridle leather came from the harness room

Before it was a briefcase leather, it was holding horses.

Bridle leather carries its trade in its name. Walsall, in the English Midlands, is a saddlery town to the bone. The Field’s piece on Walsall leather reports that the town had 6,830 saddle and harness makers around 1900, and that its football club still goes by “the Saddlers.” The same article quotes Richard Farrow of J&E Sedgwick, the Walsall firm my regular bridle comes from (as the post on what a portfolio piece is mentions), on why quality in a bridle is a safety question: “you don’t want to lose your steering wheel if it breaks.”

That line is about a horse. Put a dog on the end of it and nothing changes. The Society of Master Saddlers, formed in 1966, still trains saddle fitters and bridle fitters and runs a national competition, so the trade that made this leather still earns its living with its own standards. The older split between shoemakers and harness makers is told in the post on cordwainers and saddlers.

American tanneries make the heavy end of the same family. Weaver lists Hermann Oak Old World Russet harness leather as fully vegetable-tanned and “Stuffed with extra tallows,” in weights from 8 to 10 ounce up past 12, and names dog collars and leashes on its list of uses, right beside reins and tack.

My reason for using this family of leather is on The Maker page. The stitch I use is the saddle stitch, “the same one that holds tack together under a 2,000-pound horse.” My opinion: a leash is closer to a rein than to a belt, so it belongs in tack leather and tack stitching. A dog does not weigh a ton. It does not need to. The pull comes sideways and sudden, and that is the load harness was built to take.

The snap end, where metal meets leather

The clip is the only part you did not make, so read it like a stranger’s work.

Macro view of a brass bolt snap riveted and saddle stitched into a bridle leather leash.

The hardware end is the first place to look when a leash fails. Two materials, pretending to be one part. The common leash clip is the bolt snap: a spring-loaded bolt slides in a hollow shaft and closes the mouth of the hook. The Wikipedia entry on the bolt snap lists dog leads among its uses and is frank about its limits. It rates the design as medium security, notes that bolt snaps are not load rated, and says chrome-plated zinc and plastic bodies suit light loads only. Brass bodies get the heavier jobs, and so do steel ones that will not rust.

So read the listing before you buy. Pet Hardware’s 56 mm solid brass snap hook is sand-cast solid brass with no iron, so it will not rust, and the maker gives a breaking load of 70 kg for that one size. That number belongs to that snap. Not to every snap, and not to the leash it hangs on. The same page warns that ordinary brass slowly loses zinc and turns brittle with long exposure to salt water, and points to marine bronze or 316 stainless for permanent marine use. A dog that swims in the ocean every morning needs different metal from one that walks a park.

How the snap is fixed to the strap matters as much as what it is made of. Take a finished commercial example. Dogids sells a Mendota English bridle leather snap lead at 3/4 inch wide in 4 or 6 foot lengths, fully stitched, with a swivel bolt snap in solid brass. Stitched along its length, riveted at the metal.

Some builders use Chicago screws at that joint so the snap can be swapped. The Pet Hardware blog’s guide to choosing Chicago screws recommends stainless steel for “Heavy-duty dog equipment, working harnesses,” keeps brass for premium collars and luxury goods, and suggests a drop of threadlocker where the joint is meant to stay put. I use Chicago screws on briefcase handles myself, so I have no quarrel with them. Rivets I rank. My opinion: hollow tubular rivets are the weakest of the lot, solid ones hold a good deal better, and copper is strong but too ugly for my bench.

Then the snap. My opinion: buy it last, after you know the dog and the strap width, and pick it for the gate and the metal, not the shine.

The handle loop and the stitch you trust

Here is where hand stitching earns its reputation, and where it can lose it.

The other end of the leash is a loop, the strap folded back on itself and sewn. Every pull the dog makes ends up in that seam, working at the two layers like a pry bar in a door jamb. A saddle stitch is made for exactly that. Weaver’s hand-sewing walkthrough shows the method: two needles on one thread, both passing through every hole from opposite sides, with chisels held straight up and down so the holes line up through both layers.

Now the part where my own pages argue with me. On my hand-stitching page I wrote that a hand saddle stitch is a stronger bond than a small sewing machine stitch. I also wrote that “unskilled hand stitching is worse to the bond than unskilled machine stitching.” Both are true, and I do not get to keep the first without paying for the second. The stitch that makes a leash worth sewing by hand is the same stitch a first-timer is most likely to botch, which is the reason not to trust a first leash with a big dog.

The same page explains one way it goes wrong: each needle has to enter a hole already holding thread, and skill is needed not to puncture that thread. A speared thread looks fine on the face and is half a stitch inside. On a briefcase, that means a loose seam years later. On a leash it shows up on a walk, at the end of your arm.

The only warning comes through the fingers. Enough years with a needle and you feel a strand give inside the layers, a small dead spot in the pull, before there is anything to see. A beginner’s hands do not know that feeling yet. Mine did not either.

So for a first build, my opinion is this: stitch the handle, and if you are new, back it up at the snap. A rivet set properly is a mechanical joint that does not care how well you sewed. Pet Hardware’s manual riveting guide gives the basics: pick a shaft a couple of millimetres longer than the stack on thick material, punch the hole slightly smaller than the shaft, and set it with one firm blow, since a hole too large can let the head pull through under tension. Stitch on both sides of the rivet and the joint has two ways to hold instead of one. Belt and suspenders, on a leash.

Then test it before the dog does. Pull the loop hard by hand, at an angle, the way a dog pulls. Look at the back of the seam, not just the front. My Maker page has the rule I go by: “The side nobody sees is where a weak stitch gets found out.”

Edges for a wet hand

A square edge on a leash is a small saw.

Workbench with a long strip of harness leather, edge tools and brass snaps ready for a dog leash build.

A briefcase strap rides on a shoulder, through a coat. A leash runs through a bare palm, sometimes fast. That is why its edges deserve more time than almost anything else on the bench.

The order is the one the post on patina as a record gives for rescuing a frayed edge: bevel back to sound leather, sand lightly, then burnish until the fibers lie down and the surface turns hard and glassy. I burnish dog leashes, and the job is the same as on any strap, only longer, with more of it ending up in someone’s palm. A well-made commercial lead says the same thing in a sales line. The BASIC lead sold by Suzanne Clothier, hand-made in English bridle leather in widths from 1/4 to 3/4 inch with brass clips, is described this way: “Edges are beveled, smoothed & lovely to the hand.” I would not have reached for the word lovely. That phrase is still the target.

A leash also gets held from both sides, so the back counts as much as the face. On straps I have split two pieces thin on an old hand-crank splitter and stitched them together flesh to flesh, which leaves finished grain wherever the hand lands. More cranking, more sewing. The palm never finds the rough side.

My opinion: a burnished edge handles a wet day better than a raw one, because the fibers lie closed instead of open. It is still not a waterproof edge. Nothing on a leash is. Wipe it down, and condition it as the Leather Care page describes: conditioner on a clean cloth, rubbed in briskly, left to sit, then buffed off.

Bridle leather does one more thing here. It starts stiff and waxy and softens with use, and a leash gets more use, more grip and sweat and rain, than almost any strap you could cut. A leash on its first day and on its five-hundredth walk are as far apart as a new rein and an old one. My opinion, having cut both kinds: English bridle carries so much wax that it stays glossy and takes years to break in, while American vegetable-tanned bridle fades and patinas within months. Both get to soft in the hand. The English just makes you wait. The background on how this leather is tanned is in the post on the art of vegetable tanning.

None of which settles whether a first leash should go on a first dog. That depends on the dog.

Weaver Leather #225 Round Swivel Snap, Solid Brass: A solid brass round swivel snap. See it on Amazon (affiliate link).

304 Stainless Steel Chicago Screws Leather Assorted Kit: A kit of 90 stainless steel Chicago screw sets in seven sizes. See it on Amazon (affiliate link).

Mandala Crafts 150D 0.8mm Black Flat Waxed Thread: A flat waxed polyester thread, 0.8 mm, in black, for hand sewing leather. See it on Amazon (affiliate link).

John James Saddlers Harness Blunt Point Needles: A set of blunt-point harness needles, five sizes with five needles of each. See it on Amazon (affiliate link).

As an Amazon Associate I earn from qualifying purchases. A commission may be earned if you buy through this link, at no extra cost to you.

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