What Size Urn for a Large Dog?
Updated November 2026.
The short answer: size a large dog's urn by their usual, healthy weight. Dogs up to 30 kg (66 lb) choose our Medium–Large size. Dogs between 30 and 40 kg (66 to 88 lb) choose our Extra Large size. For a dog heavier than 40 kg, message us before you order so we can talk through the options.
What size urn for a large dog?
Large dogs cover a wide spread, from a lean 25 kg collie-type to a deep-chested 40 kg shepherd or retriever, and the right urn changes across that range. Our two larger sizes cover it: Medium–Large for dogs up to 30 kg and Extra Large for dogs up to 40 kg. The weight your dog was when well decides it.
How much space do a large dog's ashes need?
A common guide is about 1 cubic inch of space for each pound your dog weighed. It is a guide, not a measured volume. For a large dog:
- A 25 kg (55 lb) dog: about 55 cubic inches, roughly 900 ml
- A 30 kg (66 lb) dog: about 66 cubic inches, roughly 1.1 litres
- A 35 kg (77 lb) dog: about 77 cubic inches, roughly 1.3 litres
- A 40 kg (88 lb) dog: about 88 cubic inches, roughly 1.4 litres
Our sizes for large dogs
| Our size | Pet's usual weight | Rough ashes volume (guide) | Canopic jar urn, approx. outer size (W x D x H) |
|---|---|---|---|
| Small–Medium | up to 15 kg (33 lb) | up to about 33 cubic inches, roughly 540 ml | 120 x 154 x 231 mm |
| Medium–Large | up to 30 kg (66 lb) | about 66 cubic inches, roughly 1.1 litres | 140 x 180 x 270 mm |
| Extra Large | up to 40 kg (88 lb) | about 88 cubic inches, roughly 1.4 litres | 160 x 206 x 309 mm |
As a stacked canopic jar, Medium–Large measures approx. 140 mm wide, 180 mm deep and 270 mm tall, and Extra Large approx. 160 mm wide, 206 mm deep and 309 mm tall. The canopic jar weighs around 2 kg, varying by size. The same weight bands apply to our dog portrait, wrapped, collar and canopic jar urns, so you can compare styles at the same size.
Check the weight before you order
Large breeds vary a lot from dog to dog. Use the weight your dog was at when healthy. If they lost a lot of weight towards the end, which is common in older large dogs, their usual weight is the better guide. Between two sizes? Go up.
- Use the weight your dog was when healthy. If they lost weight towards the end, their usual weight is the better guide.
- If the crematorium gave you the volume of the ashes, use that figure and tell us before you order.
- Between two sizes? Go up. A little space is better than too little.
- Never use the outside measurements as the space inside: tell us the volume you need and we will confirm the size.
Which breeds are large dogs?
In practice, anything from a heavy springer or border collie upwards: Labradors, golden retrievers, German shepherds, boxers, and many large crossbreeds and rescues. A Labrador, for instance, is often right at the edge between our two sizes, so read our Labrador urn size guide. For a dog of exactly 30 kg, our 30 kg dog guide explains the decision. Giant breeds over 40 kg need a conversation: message us with their weight first.
Urn styles for a large dog
- Custom dog portrait urn: a seated portrait shaped from one to five of your photographs, in chalk off-white, with a black plug closing the opening underneath.
- Collar urn: made to hold their own collar beside the portrait. Tell us the fastened circumference and strap width when you order.
- Wrapped pet urn: your dog's face held by curved, overlapping forms.
- Personalised canopic jar urn: black with antique-gold details, a portrait lid and your dog's name on the front. The lid rests on the jar without a seal.
Every White Doe dog urn is cast stone, finished by hand and made to order, with free tracked delivery in the UK and worldwide. For portrait styles you send one to five clear photographs and we share a digital proof before anything is made. The portrait, collar and wrapped urns are for indoors on a steady shelf, mantel or sideboard; the canopic jar can also sit in a sheltered outdoor spot. Support any urn underneath with both hands when you lift it.
Where to go next
Browse pet urns for ashes, or see the custom dog portrait urn, which offers the same three sizes. Our urn size calculator does the sum for you in kilograms or pounds. For a smaller dog, read our small dog urn size guide. For help choosing between styles, read compare pet urns or how to choose a pet urn.
Questions people ask
What size urn for a large dog?
Dogs up to 30 kg choose Medium–Large. Dogs between 30 and 40 kg choose Extra Large. For a dog over 40 kg, message us before you order.
What size urn for a 35 kg dog?
A 35 kg (77 lb) dog fits Extra Large, which is for pets up to 40 kg. The guide gives about 77 cubic inches, roughly 1.3 litres.
What is the largest size you make?
Extra Large is the largest standard size, for pets up to 40 kg (88 lb). For a bigger dog, message us before you order.
Can I use the outside measurements to check the capacity?
No. The outside size is larger than the space inside. Tell us the volume you need to hold and we will confirm the size.
What if the crematorium told me the volume?
Use that figure instead of the weight guide, and tell us before you order.
Do all your urn styles come in large sizes?
The dog portrait, wrapped, collar and canopic jar urns all use the same three weight bands, up to 15, 30 and 40 kg.
Do you deliver outside the UK?
Yes. Delivery is free and tracked, in the UK and worldwide.