What Size Collar for Bullmastiff | 6 Sizes To Consider!

What Size Collar for Bullmastiff

When selecting a collar for your Bullmastiff, it’s essential to ensure the right size for both comfort and safety. Bullmastiffs, known for their large, muscular builds, need a collar that fits securely without causing discomfort or restricting movement. So, what size collar for Bullmastiff?

Below, I’ll explore everything you need to know about choosing the right collar size, along with recommendations for measuring, adjusting, and maintaining the collar. For detailed guidance on ensuring the perfect collar fit for your St. Bernard, check out the Best Practices for St. Bernard Collar Adjustment to keep your dog comfortable and secure.


What Size Collar for Bullmastiff | Bullmastiff Neck Size Range

Bullmastiffs have thick necks, which typically vary between 22 to 28 inches, depending on gender and individual size. Males generally have a larger neck size of 24 to 28 inches, while females fall in the range of 22 to 26 inches. Since these measurements can vary based on factors like age, growth, and weight, it’s important to measure regularly, especially during the dog’s growth phase.

Bullmastiff Collar Size Quick Reference Table


Key Takeaways

  • Measure Twice: Wrap a flexible measuring tape around the base of your Bullmastiff’s neck, allowing for two fingers’ space between the tape and neck for a comfortable fit.
  • Choose Adjustable Collars: Given the potential for growth or weight changes, adjustable collars offer better versatility.
  • Collar Width Matters: Wider collars (1.5 to 2 inches) distribute pressure better, especially for such large, strong dogs.
  • Puppy Considerations: Use lightweight, adjustable collars for puppies, keeping in mind their rapid growth.

Regularly inspect and adjust the collar as needed to ensure continued comfort and safety for your dog. Ensure your Newfoundland’s comfort and security with expert tips on how to ensure a safe collar fit for Newfoundland.


How to Measure Your Bullmastiff’s Neck

Accurate measurement is the key to finding the perfect collar. Here’s a step-by-step process:

How to Measure Your Bullmastiff’s Neck
  1. Relaxed Position: Make sure your Bullmastiff is standing comfortably.
  2. Locate the Neck Base: Measure at the base where the neck meets the shoulders.
  3. Use a Flexible Measuring Tape: Wrap it around the neck, keeping it snug but not tight. You should fit two fingers between the tape and your dog’s neck for comfort.
  4. Double-Check the Measurement: Ensure accuracy by measuring twice to avoid errors.

These steps help ensure that the collar fits properly without being too tight, which could cause discomfort, or too loose, which may lead to slippage.


Types of Collars for Bullmastiffs

Types of Collars for Bullmastiffs

1. Standard Flat Collar

  • These basic collars are often adjustable and suited for everyday wear. They usually feature materials like leather or nylon and can accommodate the thick necks of Bullmastiffs.
  • Size Tip: Look for collars with a length range of 24 to 30 inches, ensuring room for adjustment as your Bullmastiff grows.
Standard Flat Collar

2. Padded Collars

  • Padded collars offer extra comfort, preventing chafing and irritation, especially for dogs with sensitive skin. They are often made with neoprene or fleece lining.
  • Best For: Dogs prone to skin irritation or those who wear collars for extended periods.
Padded Collars

3. Martingale Collars

  • These collars provide better control without causing discomfort, especially for training. Martingale collars tighten slightly when the dog pulls but do not choke.
  • Ideal Use: Useful for training sessions or walks, as they prevent escape by tightening when the dog pulls away.
Martingale Collars

4. Quick Release Collars

  • Equipped with a quick-release buckle, these collars allow for easy removal in emergencies. This feature is essential for safety if your dog gets caught or tangled.
Quick Release Collars

Selecting the Right Width

In addition to length, the width of the collar is crucial. Bullmastiffs, due to their large necks, benefit from collars that are at least 1.5 inches wide. A wider collar distributes pressure more evenly, preventing discomfort during walks or training sessions. Discover the ideal fit by learning what size collar for Newfoundland dog to ensure your pet’s comfort and safety.


Adjusting for Comfort and Fit

Collars that are too tight can restrict blood flow and cause muscle strain, while those that are too loose may slip off. Adjustable collars allow you to fine-tune the fit as your Bullmastiff grows. If your dog is still a puppy, choosing a collar with room for adjustment is essential since Bullmastiffs grow rapidly in their early years. For expert tips on how to fit a collar on a Belgian Shepherd, this guide offers simple steps to ensure your dog’s collar fits securely and comfortably.


Importance of Reflective and Safety Features

If you walk your Bullmastiff during early mornings or late evenings, a reflective collar enhances visibility, ensuring the safety of both you and your dog. Some collars also feature built-in handles or loops to provide better control, which is helpful given the Bullmastiff’s strength.


Common Mistakes to Avoid

  • Buying a Collar Too Early: Puppies grow quickly, so it’s better to buy an adjustable collar rather than a fixed-size one.
  • Ignoring Regular Checks: Even adult Bullmastiffs can experience weight changes. It’s essential to re-measure the neck periodically and adjust the collar accordingly.
  • Using Inappropriate Materials: Avoid collars with rough stitching or sharp edges that might irritate the dog’s skin.

Choosing the Right Collar Material for Bullmastiffs

When selecting a collar for your Bullmastiff, the material is a critical consideration. Bullmastiffs are large, active dogs with thick necks, so choosing the right material can impact both comfort and durability.

1. Leather Collars

Leather collars are a popular choice for large breeds like Bullmastiffs due to their durability and classic look. These collars are soft yet sturdy and tend to soften over time, making them a comfortable option for everyday wear.

 Leather Collars
  • Pros: Long-lasting, aesthetically pleasing, and softens with use.
  • Cons: Can be expensive and require maintenance with leather conditioner to prevent cracking​.

2. Nylon Collars

Nylon collars are lightweight and available in various colors and styles. These collars are also resistant to water, making them ideal for Bullmastiffs who enjoy outdoor activities.

Nylon Collars
  • Pros: Affordable, easy to clean, and available in many designs.
  • Cons: Less durable than leather and may fray over time if subjected to heavy wear.

3. Neoprene-Padded Collars

For dogs with sensitive skin, neoprene-lined collars provide extra cushioning to prevent chafing and irritation. This feature makes them an excellent choice for Bullmastiffs, who may experience discomfort with rougher materials.

Neoprene-Padded Collars
  • Pros: Comfortable, soft on the skin, and moisture-resistant.
  • Cons: Can be bulkier than regular collars, which may be less suitable for everyday use.

Specialty Collars: Martingale and Prong Options

Martingale Collars

Martingale collars are designed to prevent dogs from slipping out, making them an effective option for Bullmastiffs who may pull during walks. These collars tighten slightly when the dog pulls but do not choke, offering a balance between control and comfort​.

Martingale Collars

Prong Collars

While prong collars can offer effective control for strong dogs, they should only be used under professional guidance. These collars provide quick corrections but can cause discomfort if misused. For detailed guidance on selecting the correct collar size for a Belgian Shepherd, this article provides essential tips to ensure your dog’s comfort and safety.

  • Note: For Bullmastiffs, prong collars may be suitable in specific training contexts but are not recommended for everyday use due to their potential to cause injury if improperly fitted​.
Prong Collars

Training Considerations and Behavioral Impact

Given the Bullmastiff’s size and strength, proper training is essential to ensure safe interactions with others. A collar plays a vital role in training, providing an anchor point for a leash and serving as a tool for behavioral cues. 

Training should focus on positive reinforcement techniques, such as rewarding desired behaviors with treats and praise, which encourages good habits without the need for harsh corrections​.

Additionally, it’s important to teach your Bullmastiff to walk calmly on a leash. With their protective instincts, Bullmastiffs may become overexcited around strangers. A well-fitted collar combined with patient training ensures better control during walks and reduces the risk of pulling or lunging behaviors. Discover the perfect collar size for an Anatolian Shepherd Dog to ensure comfort and security for your furry friend.


Collar Safety: When to Use a Harness Instead

In some cases, a harness may be a better option than a collar. For Bullmastiffs that tend to pull or are prone to respiratory issues, a harness reduces pressure on the neck and provides more even weight distribution across the chest.

  • Recommended Harness: The Winsee Dog Harness is adjustable and can fit a 33-inch neck, offering durability and control for large breeds​.

Reflective harnesses are also recommended if you walk your dog at night. They enhance visibility and safety, ensuring that both you and your dog remain visible to motorists and pedestrians.


Maintaining and Checking the Collar Regularly

Even with a perfect fit initially, a collar’s fit can change over time due to growth, weight fluctuations, or wear. It’s essential to:

  1. Inspect the Collar Weekly: Check for fraying, weakening of buckles, or signs of discomfort on your dog’s neck.
  2. Adjust the Fit Regularly: Ensure you can still fit two fingers between the collar and your dog’s neck. If your Bullmastiff gains or loses weight, adjust the collar size accordingly.
  3. Clean the Collar: Nylon and padded collars should be cleaned regularly to prevent buildup of dirt and bacteria, which can cause skin irritation.

Final Recommendations

For a comfortable and secure fit, always ensure your Bullmastiff’s collar falls within the correct size range. If your dog measures at the upper limit of one size, it’s advisable to choose the next size up. Regularly checking the collar for signs of wear, such as fraying or weakened buckles, is also important to maintain safety during use.

Bullmastiffs are large, gentle giants, but their size demands attention to detail when selecting equipment. A well-fitted collar ensures not only their safety but also your peace of mind, knowing they are secure during walks or training sessions. Whether you prefer leather, nylon, or padded options, the right collar can enhance the comfort and well-being of your Bullmastiff throughout its life. Hope so, now you know, what size collar for Bullmastiff?

For more detailed advice, including reviews on the best brands and types for Bullmastiffs, you can explore further resources on sites like PetSmart and SpiritDog Training. These sites offer sizing charts and detailed product recommendations that align with your Bullmastiff’s needs. Learn more about the unique double-layered coat of an Anatolian Shepherd and how to care for it effectively.