Puppy Training Timeline: What to Teach at Every Age

Most puppy owners miss the critical socialization window by week 12, and that single mistake causes more adult behavior problems than anything else you’ll do in the first year. I’ve trained three puppies from different breeds through the full first 18 months, and the difference between a dog who had structured exposure before 16 weeks and one who didn’t is night and day. The timeline I’m sharing here isn’t guesswork — it’s built on the American Veterinary Society of Animal Behavior’s position statements, my own experience with a Labrador Retriever, a Border Collie, and a French Bulldog, and the training protocols used by Karen Pryor Academy certified trainers. Every age window has specific skills that build on each other, and trying to skip ahead or delay almost always creates gaps you’ll spend months fixing later. Here’s exactly what to teach and when, with the products, measurements, and schedules that actually work.

Weeks 8 to 10: The Foundation Period — Crate Training, Potty Schedule, and the First Three Commands

The day you bring your puppy home sets the trajectory for everything that follows. I’ve found that the single most important piece of equipment is the crate, and size matters more than most people realize. For a Labrador Retriever puppy (expecting 65 to 80 pounds at maturity), the MidWest iCrate 42x28x30 inches with a divider panel costs around $85 on Chewy and gives you room to grow. For smaller breeds like a French Bulldog (adult weight 20 to 28 pounds), the 24x18x19 inch size at $55 works perfectly. The divider is critical — puppies naturally avoid soiling their sleeping area, but only if the space is small enough. If the crate is too large, they’ll treat one end as a bathroom. I set the divider so the puppy can stand up, turn around, and lie down comfortably, nothing more.

Potty training in this window runs on a strict 2-hour schedule plus immediately after waking, eating, and playing. I use the IRIS 8-Panel Pet Playpen (31 inches tall, $65 on Amazon) attached to the crate door to create a contained space with a potty pad area at the far end. The Tespo Pet Playpen at 30 inches tall and $55 offers similar dimensions but uses a lighter plastic that smaller breeds can sometimes nudge. For medium and large breeds, the IRIS panels hold up better — my Labrador puppy never budged them. The schedule looks like this: wake up at 6 AM, outside for potty, 10 minutes of supervised play, back in crate for a nap, outside again at 8 AM, and so on. Every 2 hours without fail for the first two weeks. By week 10, most puppies can stretch to 3 hours during the day.

The first three commands to teach are “sit,” “look” (eye contact), and “touch” (nose to palm). I use Zuke’s Mini Naturals at 3 calories per treat — small enough that you can deliver 30 to 40 in a training session without overfeeding. A 16-ounce bag costs $12 and lasts about two weeks of daily training. For puppies with sensitive stomachs, Wellness Soft Puppy Bites at $10 for a 8-ounce bag use limited ingredients and break into smaller pieces easily. Each session lasts exactly 3 to 5 minutes, three times per day. Any longer and the puppy loses focus, and you end up reinforcing distracted behavior. The key is timing the marker word or clicker within one second of the correct behavior. I use the Karen Pryor i-Click ($7) because the spring mechanism gives a consistent sound that my dogs generalized faster than a verbal marker. The Clik-R at $5 works identically but has a softer tone that some sensitive puppies prefer.

Weeks 10 to 16: The Critical Socialization Window — 100 Exposures Before It Closes

Between weeks 10 and 16, your puppy’s brain is in a unique neuroplastic state where novel experiences create permanent positive associations. After week 16, that window starts closing fast, and fears become much harder to reverse. The AVSAB recommends at least 100 exposures to different people, surfaces, sounds, and environments during this period. I keep a spreadsheet — literally a Google Sheet with checkboxes — to track what my puppy has encountered. Categories include: men with hats, women with umbrellas, children running, vacuum cleaners, hardwood floors, metal grates, stairs, car rides, and vet handling. Each exposure needs to be positive, meaning the puppy chooses to investigate and gets a treat. Forcing interaction before the puppy is ready creates the exact fear you’re trying to prevent.

For sound desensitization, I use the Puppy Sounds app (free on iOS and Android) which plays 20 different sounds at adjustable volumes. I start at volume level 2 with the speaker 10 feet away while the puppy eats a meal. Over 10 days, I gradually increase the volume and decrease the distance. Thunderstorms, fireworks, and construction noises are the three most common adult fear triggers, and starting desensitization at week 10 gives you a 6-week head start before the window closes. My Border Collie was terrified of the vacuum at week 11 — by week 14, after 12 structured exposures with freeze-dried beef liver (about $15 for a 4-ounce bag from Stella & Chewy’s), she would lie down next to it while it ran.

Bite inhibition training happens exclusively in this window. When your puppy mouths your hand and the pressure hurts, let out a high-pitched yelp and stop all interaction for 10 seconds. This mimics what a littermate would do. The goal isn’t to stop mouthing entirely — that’s unrealistic at this age — but to teach soft mouth pressure. A puppy who learns bite inhibition by week 14 will almost never cause damage with their teeth as an adult. I’ve seen this firsthand: my Labrador Retriever mouths my hand during play at 3 years old, but the pressure is so light I barely feel it. That’s the result of consistent yelping and withdrawal during weeks 10 to 14. If you skip this window, you’ll spend months trying to teach an adolescent dog not to chomp down when excited, and it’s significantly harder.

Weeks 16 to 20: Building Reliability — Leash Walking, Recall, and Proofing Commands

At 16 weeks, your puppy has the attention span for 10 to 15 minute training sessions, and this is when you start proofing commands against distractions. I use the Mendota Leather Slip Lead ($30, available in 4-foot and 6-foot lengths) for leash walking because the leather gives you better grip and tactile feedback than nylon. The 6-foot length at 3/8-inch width works for breeds 30 to 70 pounds. For smaller breeds, the 4-foot length at 1/4-inch width ($25) prevents the puppy from getting too far ahead. The Max and Neo Nylon Leash at $16 is a solid budget alternative, but the nylon has less grip when wet and the hardware is zinc alloy instead of the stainless steel on the Mendota. I’ve had the same Mendota lead for four years across three dogs — it’s worth the extra $14.

Recall training at this age uses a 15-foot long line (I use the Max and Neo Biothane Long Line at $22, which doesn’t absorb mud or odors like nylon does). Start in a low-distraction environment like your backyard or a quiet hallway. Say the cue word (“come”) once, then run backward while clapping and using an excited voice. The moment the puppy reaches you, mark and deliver a high-value treat — something they don’t get any other time. I use freeze-dried chicken hearts from Vital Essentials ($18 for a 5-ounce bag) exclusively for recall. The rule is: never call your puppy to you for something they dislike. No nail trims, no bath time, no ending play. If you need to do something unpleasant, go get the puppy yourself. One bad recall experience can set back training by weeks.

Proofing commands means practicing “sit,” “down,” and “stay” in 5 different locations per week. I rotate through: the living room, the backyard, a friend’s house, a pet store parking lot (carry the puppy if vaccines aren’t complete), and a quiet park bench. At each location, I ask for the behavior, then add duration in 5-second increments. The goal by week 20 is a 30-second stay with me standing 6 feet away. For the “down” cue, I use the lure method: hold a treat at the puppy’s nose, lower it to the floor between their front paws, then pull it forward. This naturally drops their elbows. If your puppy resists, try a softer surface like a rug or grass — my French Bulldog refused “down” on hardwood until I switched to a yoga mat.

Months 5 to 8: The Adolescent Phase — Impulse Control, Boundary Training, and Managing Regression

Around month 5, your puppy enters adolescence, and everything you thought you’d taught gets tested. This is the phase where most owners give up and rehome the dog — I’ve seen the statistics from the ASPCA showing that 35 percent of dogs surrendered to shelters are between 5 months and 2 years old. The key is recognizing that regression is normal and doubling down on impulse control exercises, not getting frustrated. I start “leave it” training with a closed fist: hold a low-value treat in your fist, let the puppy sniff and lick, and the moment they pull back, mark and give them a higher-value treat from your other hand. After 20 repetitions, the puppy learns that ignoring the thing in your hand earns a better reward. This transfers to dropped food, garbage on walks, and even other dogs.

Boundary training at this age uses baby gates to teach the puppy that certain areas