The key facts: Young puppies should not use stairs unsupervised. Their joints, bones, and muscles are still developing. However, gradual stair training from around 12 weeks is fine when done carefully.

Many new puppy owners wonder: are stairs safe for my puppy? The answer depends on the puppy's age, size, and breed โ but with the right approach, you can teach your puppy to handle stairs confidently.
Puppies' skeletons are not fully formed until 12โ18 months, depending on the breed. Large breed puppies take even longer. Falls from stairs during this developmental phase can cause lasting joint damage.
The main risks:
Never carry a puppy up stairs and then leave them to find their own way down โ this is when accidents happen most often.
General guidelines by age:
Large breeds (German Shepherd, Golden Retriever, etc.) should wait longer before using stairs independently.
Begin with just the bottom step. Let your puppy step up and back down. Use treats and praise. Don't rush โ build confidence before adding more steps.
Once your puppy is confident with one step, add a second step. Continue one step at a time. Never place the puppy partway up and expect them to figure the rest out alone.
Stay close and ready to catch your puppy if they slip. Use a non-slip mat on smooth stairs to prevent sliding.
Use high-value treats and enthusiastic praise. Make stair training a positive experience from day one.
Vets recommend limiting stair use for large-breed puppies under 3โ4 months. Carry them when possible. When they start stair training, keep sessions short (2โ3 minutes) to avoid overloading developing joints.
Fear of stairs is common, especially if a puppy had an early bad experience. Never force a frightened puppy onto stairs โ this makes the fear worse.
Use desensitization: let the puppy sniff and investigate stairs without any pressure. Place treats on the first step. Let the puppy decide when to approach. Patience and positive experiences will build confidence over time.