A leather dog collar is a useful project for practicing punching, fitting a buckle and D-ring, and saddle stitching. A collar sits against the dog’s neck every day, so fit and hardware matter more than appearance. Measure carefully, use sturdy leather, and check the collar often.
Measuring Your Dog
Measure around the dog’s neck snugly, then add about 2 in (5 cm) for the collar size. The right allowance varies with breed and coat.
To check the fit, two fingers should slide flat under the collar. Puppies outgrow collars quickly, so recheck the fit every week or two.
Choosing the Width
- Small dogs: 1/2-3/4 in.
- Medium dogs: 3/4-1 in.
- Large dogs: 1-1.5 in.
- Giant breeds: up to about 2 in.
A wide collar is uncomfortable on a small dog, so match the width to the dog’s size.
Choosing Leather
Use 8-10 oz vegetable-tanned leather, such as bridle leather, or combination-tanned latigo. Alternatively, glue and stitch two 4-5 oz layers together.
Cut from the back or shoulder, along the spine. Avoid belly leather, which stretches. Thin decorative collars are not strong enough for leash pulling.
Hardware
- Buckle, D-ring and keeper. The D-ring is where the leash attaches.
- Welded D-rings are stronger than bent ones.
- Metal: stainless steel or solid brass resists rust. Avoid zinc alloy for strong dogs.
- Attachment: secure the buckle and D-ring with saddle stitching or rivets through both layers. Do not rely on glue alone.
Cutting and Punching
Punch about five holes, spaced about 3/4-1 in apart, with the middle hole at the measured size. Leave about 2-3 in beyond the last hole for the tip and keeper.
Round the corners and burnish the edges smooth, so the collar does not rub the dog’s skin.
Stitching and Finishing
Stitch with 0.8-1.0 mm waxed polyester thread. Seal the collar with a water-resistant finish, since leather stretches and stiffens if it is soaked repeatedly. If your dog swims often, leather is only a good choice when it is sealed and dried after each swim.
Common Mistakes
- Making the collar tight. A tight collar is not safer. It can chafe and affect breathing.
- Ignoring width. A collar that is too wide is uncomfortable on a small dog.
Safety Checks
- Remove collars in crates and during unattended play to prevent snagging.
- Check the stitching, holes and hardware regularly for wear.
For the same punching and hardware steps on a larger strap, see the plain leather belt guide. For more ideas, see the DIY leather projects overview.