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Goldendoodle Size Chart

Goldendoodles come in four sizes set by the Goldendoodle Association of North America: Petite (up to 25 lb), Miniature (26–35 lb), Medium (36–50 lb) and Standard (51 lb and up). Height at the shoulder decides the size, not weight. Pick a size, or enter the parents’ weights, to estimate how big your puppy will get.

By Sikander Malik · Updated October 14, 2026 · Sources

Size

mo
lb

Expected adult size

Medium: 36–50 lb, 17–21 in

Typical crate: 36 in.

Estimates only, not veterinary advice. Ask your vet about your pet’s health.

Goldendoodle sizes

Sizes are the official GANA categories, measured by height at the withers. GANA notes that weight can fluctuate, so height is the deciding factor, and a breeder’s size estimate for a puppy is an educated guess.

Goldendoodle size categories
SizeHeight at the withersAdult weight
PetiteUnder 14 inUp to 25 lb
Miniature14–17 in26–35 lb
Medium17–21 in36–50 lb
StandardOver 21 in51 lb and up
Source: Goldendoodle Association of North America (GANA).
Expected weight by age (lb)
AgePetite (up to)MiniatureMediumStandard (min)
3 mo9.211.314.517.2
4 mo12.815.62124.9
5 mo15.518.926.431.3
6 mo18223136.7
8 mo21.526.338.445.6
10 mo22.627.639.847.2
12 mo232839.947.3
15 mo23.728.941.849.6
18 mo2429.34249.8
24 mo ‡2530.54351
Each column is that size’s representative adult weight (the GANA bound) scaled by the median growth curve. “Up to” and “min” mark GANA’s open-ended Petite and Standard ranges. ‡ estimated beyond the last observed age.
Growth curve from 60,951 healthy dogs (Salt et al. 2017), scaled to the GANA size bounds.

Growth data starts at 12 weeks, so younger ages are not shown.

Crate size by Goldendoodle size
SizeTypical crate
Petite22–24 in
Miniature30 in
Medium36 in
Standard42 in
Crate length from our dog crate size chart, by weight.

For a harness, measure chest girth. See the harness size chart.

The method, with two examples

The sizes are the official GANA categories, measured by height at the withers. To show weight by age, we take each size’s representative adult weight and scale the Salt et al. (2017) growth curve (the median line) down to the puppy ages. A Goldendoodle is a Poodle cross, so treat these as a guide: height is the reliable marker, and weight varies with coat, build and generation.

Example 1. A Medium puppy at 20 weeks weighing 22 lb is about 57% of its adult weight, projecting to about 38.8 lb, inside the 36–50 lb Medium range.

Example 2. A litter from a 15 lb mother and a 65 lb father points to roughly 15–40 lb as adults, from the lighter parent up to the average of both. That spans the Petite to Medium sizes, which is normal for a cross.

Questions owners ask

What are the Goldendoodle sizes?
The Goldendoodle Association of North America (GANA) recognises four sizes by height at the withers: Petite (under 14 inches, up to about 25 pounds), Miniature (14 to 17 inches, about 26 to 35 pounds), Medium (17 to 21 inches, about 36 to 50 pounds) and Standard (over 21 inches, about 51 pounds and up). Height is the deciding factor because weight can fluctuate.
How big will my Goldendoodle get?
The best guide is the parents, especially the Poodle parent, since that is where most of the size variation comes from. A rough rule is that a puppy lands somewhere between the lighter parent and the average of both parents. Breeders estimate a puppy’s size from the litter and the parents, but GANA notes this is an educated guess, not a guarantee.
What is the difference between a Mini and a Medium Goldendoodle?
A Miniature Goldendoodle stands 14 to 17 inches and weighs about 26 to 35 pounds; a Medium stands 17 to 21 inches and weighs about 36 to 50 pounds, per GANA. The Medium is the step between the Miniature and the Standard, so it suits owners who want a mid-sized dog rather than a small or large one.
When is a Goldendoodle full grown?
Smaller Goldendoodles (Petite and Miniature) reach close to their adult weight by about 11 to 13 months. Medium and Standard dogs fill out a little longer, to roughly 15 to 18 months. Most of the height comes first, then the chest and build. If in doubt, track the trend rather than a single target weight.
How accurate is this size chart?
The size categories are exact, straight from GANA. The weight-by-age figures are a well-sourced estimate: each size’s representative adult weight scaled by growth data from more than 60,000 healthy dogs. Because the Goldendoodle is a mix, individual dogs vary more than a purebred would, so use the chart as a guide and weigh your own puppy.

About the data

Sizes are the Goldendoodle Association of North America (GANA) categories. The weight-by-age figures scale the Salt et al. (2017) growth data (60,951 healthy dogs) to those size bounds. Mixes vary more than purebreds, so for your own puppy the puppy weight calculator (enter the current weight) gives a tighter estimate.

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Sources

Estimates only, not veterinary advice. Ask your vet about your pet’s health.