Once a dog has jumped a standard baby gate, the gate has stopped being a barrier and become a hurdle he practises daily. Replacing it is not simply a matter of buying the same thing again; a determined jumper needs a barrier chosen around his height, his climbing style, and the doorway it has to defend. Get those three things right and most dogs accept the new boundary quickly, because the reward of getting over it simply stops being available.
Measure the dog and the doorway, not the label
Start with the dog in front of you. Watch how he clears the current gate: does he sail over from a standstill, take a run-up, scramble with his paws on the top rail, or climb using horizontal bars as footholds? A clean jumper needs genuine extra height — substantially taller than the gate he already clears. A climber needs vertical bars or a smooth panel with nothing to grip. A scrambler who hooks paws over the top benefits from a rounded or angled top that gives him nothing to haul against. Then measure the doorway itself, including skirting boards and any uneven walls, because a gate that fits poorly leaves a gap at the side that a persistent dog will work at with nose and paws until it widens.
Choose mounting that survives a landing dog
Pressure-fit gates are convenient, but a dog who arrives at speed and hits a gate, or leans his full weight on it while standing to look over, can shift one in its frame. For stair tops, and for strong or heavy jumpers anywhere in the house, a hardware-mounted gate fixed into the frame or wall is the safer choice, with a latch that needs a deliberate two-part action — easy for adult hands, meaningless to a dog nudging and pawing at it. Check the spacing between bars against your dog's head and, if you also have a much smaller pet, whether that animal can slip through and defeat the point of the separation.
Remove the launch pads and the motivation
Gates rarely fail alone. A chair, storage box, sofa arm, or the dog's own bed placed beside a barrier gives an athletic dog a step up that cuts the effective height dramatically, so rearrange the furniture on his side as part of fitting the gate. Then look at what is on the other side drawing him over: food left on a kitchen counter, the front door's exciting visitors, or simply you. A dog who jumps to reach his people may settle once the barrier still lets him see and hear the household, while a dog jumping for food needs the food moved as much as the gate raised. Keep the first tests supervised, reward calm behaviour on his side of the gate generously, and never call him over it or lift him across playfully, which teaches him the boundary is negotiable.
When a gate is the wrong tool entirely
Some dogs escalate from jumping to chewing frames, throwing themselves at barriers, or injuring a leg on landing — at that point the problem is no longer gate height but the distress or arousal behind the attempts, and a taller barrier just raises the stakes. A dog who panics when separated needs gradual alone-time training behind the barrier in short, easy steps, and a dog who is simply under-exercised and inventing sport needs more of his day spent on walks, training games, and chewing something legitimate. KinsLe Family Sharing keeps the resulting house rules — which gates stay shut, which rooms are out of bounds, and how this dog is being settled behind them — in one shared profile, so a partner, teenager, or guest does not undo the system by casually stepping him over the top.