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How big does a Basset Bleu de Gascogne get when fully grown?

Published October 30, 2026

The short answer

A fully grown Basset Bleu de Gascogne stands about 34 to 38 centimetres at the shoulder, roughly 13 to 15 inches, and usually weighs around 16 to 18 kilograms. Despite the modest height, this is a solid, long-bodied hound with heavy bone, long ears, and a deep chest, so it feels more substantial than its height suggests and needs more floor space than a typical dog of similar stature. If your Basset Bleu later moves to a new home, KinsLe's Transferrable Profiles pass its recorded size, weight history, and build notes to the new owner intact, so nobody has to guess at the details.

The adult size of a Basset Bleu de Gascogne

A fully grown Basset Bleu de Gascogne stands about 34 to 38 centimetres at the shoulder and typically weighs between 16 and 18 kilograms. Males usually sit at the top of both ranges and females toward the lower end, though individual lines vary. The breed reaches most of its height by around a year old, then continues filling out through the chest and shoulders well into its second year, so a gangly youngster is not yet the finished dog.

Short legs, but a substantial dog

The height figure alone misleads people about the Basset Bleu de Gascogne, because this hound carries a long body, heavy bone, and a deep chest on its short legs. Laid out asleep, an adult takes up as much sofa and floor space as many medium breeds, and lifting one into a car boot is a two-arm job. Anyone choosing the breed for a compact home should picture the length and weight, not just the low shoulder height, when judging whether the dog fits their space and their strength.

What growth looks like on the way there

A Basset Bleu de Gascogne puppy grows quickly in length first, which is why youngsters can look comically long before their chest deepens. Steady, controlled growth matters for those long backs and short legs: overfeeding a puppy adds weight its developing frame must carry, and adults of this breed gain condition easily once mature. Regular weighing at vet visits, with the figures written down rather than remembered, gives the clearest picture of whether a particular dog is tracking toward a healthy adult size for its own build. Comparing littermates is a poor shortcut, because puppies from the same litter can finish a couple of kilograms apart once each dog's own frame has matured at its own pace.

Size in daily life: cars, beds and stairs

Living with an adult Basset Bleu de Gascogne means planning around a low, heavy dog. A ramp or a confident lift helps with car travel, because jumping down from height lands hard through those short front legs. Beds and crates must suit the full stretched length, not the standing height. Frequent stair climbing is worth limiting for a long-backed hound, and many owners carry puppies on stairs entirely until growth plates have had time to mature.

Comparing the Basset Bleu with its cousins

The Basset Bleu de Gascogne sits in the middle of the French basset family for size: smaller and lighter than the Basset Hound most people picture, and similar in spirit to the Basset Fauve de Bretagne while wearing its distinctive blue-mottled coat. That in-between size is part of its appeal, giving you a true working hound's build in a package most family cars, homes, and laps can manage.

Keeping the size record with the dog

Because a rehomed dog's new owner benefits from knowing its true adult weight and build from the start, KinsLe's Transferrable Profiles move a Basset Bleu de Gascogne's recorded measurements, weight history, and routine notes across to the new owner along with the rest of its history, so its size never has to be re-estimated from scratch.

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