Best Crate for a Puppy: A Size Guide

Here is the thing nobody tells you in the shop: the crate you are buying is not for the puppy in front of you. It is for the dog that puppy becomes, some time in the next year, and you are going to make it temporarily smaller until then. Almost every sizing mistake we see comes from buying for the animal currently in the car.

This is the new puppy stage — homecoming week through about sixteen weeks — and the crate is the single piece of gear the whole first month runs through: sleep, house-training, and the beginnings of being alone. We research gear rather than testing it, and we say so.

Size it by expected adult weight, then shrink it

MidWest, whose iCrate is the crate most American puppies grow up in, publishes the method on its own site. For a puppy, its instruction is explicit — buy the crate according to their expected adult size and use the divider panel to make it the right size while they grow.

1. Measure your dog's length from the tip of the nose to the base of the tail and add a few inches.
2. Measure height from the top of the head to the ground, standing, and add a few inches.
3. Choose the crate that lets the dog stand, turn around and lie down comfortably — neither restrictive nor excessively spacious.
4. For a puppy, size that for the adult dog, then set the divider for the puppy you have today.

Rule of thumb: Buy for the adult, divide for the puppy. A crate sized to an adult Labrador is a bathroom with a bedroom attached for an eight-week-old; a crate with a divider is a correctly sized den that grows about once a month.

The bands, and where they come from

MidWest publishes an adult-weight band for every one of its eight crate lengths, on the size chart printed on its own sizing page, alongside a breed reference for each. Both columns below are the manufacturer's; neither is ours.

Two honest notes on that table. The breed examples we transcribed for the two smallest sizes — Brussels Griffon, Yorkshire Terrier, Maltese, Papillon — are listed across both the 18 and 22-inch rows on MidWest's chart rather than split between them, so we have not guessed which breed belongs to which; the weight bands are per size and settle it anyway.

Fit note: The folding iCrate line stops at 48 inches, so the 54 is a different model and not the crate with the divider panel most of this page is about.

When to go up a size

MidWest's own caveat is printed on that chart: depending on gender and possible mixed ancestry, your dog may need a home larger or smaller than listed. Three cases where the answer is the bigger crate:

• Your dog will be near 90 pounds — the 42-inch listing itself says to size up to the 48.
• You land between two sizes — take the larger crate and set the divider tighter.
• A mixed-breed puppy of unknown parentage — ask your rescue or vet to help identify the likely breeds, then size for the adult.

Our crate size tool walks the same logic if you would rather answer three questions than read a table.

The five picks

The divider panel is the whole trick: one adult-sized crate, made puppy-sized for now.

MidWest 42-inch Double Door iCrate — best overall

The default for a reason. The listing states 42.88 x 28.75 x 30.38 inches, a band of 71-90 lb, a divider panel so the crate grows with the dog, a leak-proof tray, rubber feet and tool-free assembly, plus slide-bolt latches with a paw block. Owner feedback is enormous and mostly about assembly being easy and the divider working well for training; the recurring complaints are bent wires over time and a side door that does not always latch cleanly.

Two doors are worth the small premium in a real room, because you rarely get to choose which side of the crate the wall is on.

Petmate Sky Kennel 28-inch — if flying is in the plan

A hard-sided kennel that the listing says meets IATA requirements for live animal transport and most airline cargo specifications, with 360-degree ventilation, tie-down strap holes, live-animal stickers and a water cup included. Interior dimensions are 24.25 x 18.25 x 19.5 inches for pets around 20-30 lb. Buy this only if travel is actually happening — as a household crate it is darker and much harder to clean than wire, and owner feedback repeatedly flags the latch as stiff.

MidWest 30-inch Exercise Pen — daytime space, not a crate

Eight 24 x 30-inch panels making 16 square feet, which can stand alone, attach to a crate to extend it, or configure as a gate. This is the piece people wish they had bought first. A crate is for sleeping and for short settled stretches; a pen is where a puppy is safely awake while you cook. Owner feedback divides on sturdiness, which is a fair reflection of what a determined climber can do to it — the listing itself suggests a mesh top for pets that jump or climb.

Amazon Basics 30-inch Playpen — the value pen

Effectively the same idea at a slightly lower price: eight panels, thumb clips, two locking slide-bolt latches, ground anchors, and configurable as an octagon, square or rectangle. The listing specifies dogs up to 20 inches tall. Owners consistently describe it as easy to move and fine for containing puppies, and just as consistently note it is not strong enough for bigger dogs.

Carlson Extra Wide Walk-Through Gate — room-level containment

For openings 29-36.5 inches with the included extension, 30 inches tall, pressure mounted with no drilling, and with a small pet door so a cat can pass through while the puppy cannot. Read the fit note carefully: the listing states it does not fit openings between 32 and 34 inches. Gates and pens live together in the playpens and gates category; crates live in puppy crates.

What goes inside, and what does not

A crate that is correctly sized is only useful if the puppy likes being in it, and that is a training question rather than a shopping one — we walk it slowly in crate training a puppy. Bedding is not automatic: many puppies shred it, and a soaked bed defeats the sizing logic that makes house-training work.

What actually helps:

• A pad you can strip and wash whole, like the KSIIA crate bed, sized to the crate floor rather than to the dog
• A zippered Molly Mutt waterproof liner under it during the accident weeks, so a 3 a.m. mistake is laundry rather than a new bed
• Training pads in the pen's far corner, never in the crate — the crate works because there is nowhere to go

What people try that doesn't:

• A plush bed a teething puppy opens at the seams in a week
• A crate bought for the puppy in the car, replaced within the year
• The crate as a punishment, when its entire value depends on the puppy choosing to go in