Dogue de Bordeaux are large and powerful dogs. Males typically stand between 27 to 30 inches (68 to 76 cm) tall at the shoulder and weigh between 110 to 145 pounds (50 to 66 kg). Females are generally slightly smaller, standing around 23 to 26 inches (58 to 66 cm) tall and weighing between 99 to 120 pounds (45 to 54 kg). They have a muscular build with a broad head and strong jaws.

Dogue de Bordeaux are known for their gentle, loyal, and protective nature. They are often affectionate with their families and can be especially good with children. While they are confident and courageous, they can also be reserved with strangers. Early socialization and consistent training are important to ensure they exhibit appropriate behavior and develop into well-mannered companions.

The breed has a short, coarse coat that is dense and weather-resistant. The most common color is fawn, which can range from light to mahogany. Some may have a darker mask or limited white markings. The coat requires minimal grooming, though regular brushing can help manage shedding.

Dogue de Bordeaux thrive in environments where they receive ample attention and companionship. They adapt well to various living situations, including homes with yards or rural settings. However, they are not suited for extreme temperatures, so a comfortable indoor environment is essential. They prefer a calm environment and do not do well with prolonged isolation.

While Dogue de Bordeaux are not as high-energy as some other breeds, they still require regular exercise to maintain a healthy weight and overall well-being. Daily walks, moderate playtime, and mental stimulation through training sessions or puzzle toys are important. They may also enjoy participating in obedience training and activities that allow them to engage their protective instincts, such as tracking.