You can usually stop closing your dog into your crate when they are around two years of age. Before then, they are usually more likely to get into trouble. It isn't until they mature fully that they are able to behave properly when not supervised.
Before they are completely house and toilet trained, it is best for both your puppy and yourself for them to have constant supervision. Between 4 and 6 months of age puppies begin teething and their chewing steps up a gear. If they are not closely monitored it could cost you a few shoes or pieces of furniture.
Typically, puppies will need up to 3 hours of care separated throughout the day for training, socialization, and exercise. With the right amount of attention, puppies will grow up to be happy, healthy, and well-behaved.
Undesirable behaviours such as barking, chewing, counter surfing, house-soiling and jumping up commonly begin to occur at around 3-6 months of age. Your puppy will not grow out of these behaviours. On the contrary, it is more likely that these behaviours will worsen if not addressed early on.
Just like humans, dogs are social creatures that don't like being alone. Giving them company all the time could spell trouble, since they might learn to be too dependent on you. At its worst, a dog that is too used to the constant company of its paw-rent could develop a case of separation anxiety.
Your life will consist of non-stop supervising.
New puppies need a ton of supervision during the first few months, which means that first-time puppy owners must be on duty 24-7 until your puppy understands where to potty and what to chew (and not to chew).
According to the AKC, a good rule of thumb is to use your puppy's age as a guide. Experts say you can usually leave your puppy alone for an hour for each month they've been alive after three months of age. For example, at five months of age, your puppy will probably be just fine for five hours.
10 to 12 Weeks
That doesn't mean you can leave for a full day yet; instead, puppies should be alone for no more than two hours. Even then, accidents are very likely to occur. Using baby gates to keep the pup in a safety-proofed kitchen or somewhere with hard floors (and not carpet) will make cleanup much easier.
By the time your puppy is five (5) months old, your puppy should have: Experienced twelve (12) different surfaces – Wood, woodchips, grass, asphalt/cement, tile, wet grass, rocks, gravel, dirt, mud, puddles, grates, uneven surfaces, metal, on a table, on a chair, etc.
According to The People's Dispensary for Sick Animals, a good good starting point is to aim for 5 minutes of exercise, twice a day, for each month of age. For example, 3-month-old puppies should have 15 minutes of exercise twice a day, then 20 minutes twice a day at 4 months, etc).
The Critical Puppy Socialization Period (or 'Imprint Period') Dogs go through a critical socialization development period between the age of roughly 3 weeks to 16 weeks.
According to the American Kennel Club, puppies younger than 10 weeks cannot be left alone for more than an hour. From 3-6 months, they should not be left longer than their age in months (for example, 3-month-old puppies cannot be alone for longer than 3 hours).
How long is too long to leave a dog in a crate? Leaving a puppy alone while at work for 8 hours is unacceptable. You can leave a puppy in a crate for a maximum of 5 hours straight, depending on their age. Adult dogs can handle up to 8 hours of confinement, but it shouldn't be an everyday thing.
With regard to companionship, it suggests that dogs should not be left alone for more than four hours a day depending on their age. However the survey revealed that 23% of respondents left their dog alone for more than five hours a day on a typical weekday.
Teaching Alone Time
In the beginning, even one or two minutes might feel too long for your puppy, but over three or four days, you should be able to build up to fairly long periods.
For that reason alone, it's important to take things slow. Start by leaving your puppy in his playpen or crate for 10 minutes at a time. Before you walk out the door, give your pup a yummy treat. This will help teach them to associate your absence with rewards and good feelings.
Young puppies under six months shouldn't really be left alone for more than two hours. And it's a good idea to build up the time they spend alone gradually to prevent separation anxiety from setting in. When you do leave your puppy alone, it's a good idea to crate train them, or leave them in a puppy-proofed room.
But do schedule play and exercise time into your puppy's day: a walk around the neighborhood, playing with toys, and time spent bonding go a long way toward expending energy. Several shorter sessions are better for a puppy than one long one.
If your dog is engaging in an undesirable behavior to get your attention, the best thing to do is ignore him.
If your dog is not getting enough interaction while you are home or is left alone for long periods of time, she might display certain behaviors caused by social isolation. The lonely dog might bark, whine, chew or tear up the home in your absence.
While it's only natural to want to embrace your loved ones, it's not always a good idea to hug your canine friends. "Hugging is a form of handling, and handling can lead to fear, anxiety, and stress in some dogs," says Dr. Vanessa Spano, DVM at Behavior Vets.
However, many experts agree that the best time to socialize a dog is before they reach six months old. This is because puppies are more open to new experiences and learning during this stage of their lives. After six months, dogs can still be socialized, but it may take more effort and patience on your part.