A first boarding stay will go better for a puppy that has already met a few new places, surfaces and people. Here is how to build those experiences safely while the vaccine series is still running.
The window
The AVMA's puppy socialization handout describes a sensitive period from about 3 to 14 weeks of age, when a puppy is most open to new experiences. It also advises that puppies who are not fully vaccinated should not be exposed to animals of unknown vaccination status or to places contaminated by them, such as outdoor parks. So the goal is many calm, new, low-risk experiences, not a trip to a crowded dog park.
Low-risk experiences to try
Carry your puppy to meet friendly adults and children. Let the puppy walk on different floors, such as tile, grass and a ramp. Introduce a car ride, a crate or carrier, a brushing, nail handling and the sound of the vacuum. Keep each short and pleasant, and pair them with a treat. Visit your vet's waiting room when it is quiet. Short car trips to the kennel parking lot are good practice for the real drop-off. The puppy day care guide and puppy boarding page add more.
What Happy Paws requires
Pets must be 16 weeks old before the first day, with the vaccines recommended for their age on file. For dogs that means current rabies, distemper/parvo and Bordetella, with the recommended flu booster, if given, 3 to 4 weeks after the first dose. The how old does a puppy have to be to board guide explains the reasoning. Check your puppy's dates with the vaccine readiness checker.
A day visit before the first night
Once your puppy meets the age and vaccine rules, a day care visit can be a short first introduction to the kennel before an overnight stay. Day care is $38 a day or $7 an hour on the 2026 rates, with drop-off from 7:30 to 11:30 AM and 2 to 5 PM. Come for a tour first, since tours run daily 9 to 11 AM and 2 to 4 PM with no appointment, and the puppy will have smelled the place already. Ask your vet if you have doubts about timing relative to the vaccine series.