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What size crate does my dog need?

Measure the dog, then check the two numbers against the manufacturer's own published chart.

Size the crate

Step 1 — a starting estimate

Adult weight, not today's. This narrows the field — it does not decide the answer. MidWest's chart bands are wide, and a long low dog and a tall light dog land in the same one.

Start looking at the 36-inch (Intermediate) — MidWest lists that size for 41 – 70 lbs.

Step 2 — measure the dog

Nose to the base of the tail for length. Top of the head to the ground while standing for height. Enter what the tape says — MidWest's chart already carries the clearance.

MidWest says to add “a few inches” and does not put a number on it. Two to four inches is a common rule of thumb rather than a manufacturer figure, so treat it as one — and where a rule of thumb and MidWest's published max-dog columns disagree, follow the columns.

Starting estimate — measure to confirm

36-inch crate

MidWest's Intermediate size. Their chart puts the largest dog it fits at 34 in long and 23 in tall, for dogs around 41 – 70 lbs.

Dogs MidWest lists at this size: Bassett Hound, Whippet, Beagle, Bulldog, Brittany Spaniel. Examples from their chart, not a breed sizing rule.

Before you order, open the listing and read the crate's INTERIOR dimensions. The advertised size is the outside.

Crates we'd get →The full size guide

Choose 36-inch on the listing

MidWest iCrate Double Door

Pick 36-inch in the size selector on Amazon. Our link opens on the 42-Inch variant, which is NOT the size above.

Crate models to compare

These are crate models, not confirmed matches for your result. Check whether the maker offers your recommended size, then check the interior dimensions of the exact variant before buying.

Or compare the whole shelf: All crates

This tool runs on your device. Depending on your privacy choices, usage analytics may include tool inputs and results. All 8 published sizes are listed below.

Where these sizes come from. The chart below is MidWest Homes for Pets' own published crate-sizing table, opened and transcribed on 2026-09-07 — their lengths, their maximum dog height and length, their weight bands, their breed examples. Other manufacturers step their sizes differently; check the chart for the crate you are actually buying.

Dog crate size chart by weight

MidWest's eight published sizes, reproduced from their chart. Find the weight first, then check the maximum dog length and height: those two columns decide it, and they already carry the clearance MidWest asks you to add.

MidWest Homes for Pets published crate sizing chart
Dog weightCrate sizeMax dog lengthMax dog heightCommon breeds
1 – 6 lbs18 in (Tiny)17 in12 inJack Russel Terrier, Pomeranian, Maltese
7 – 11 lbs22 in (XS)20 in14 inPapillon, Yorkshire Terrier, Japanese Chin
12 – 20 lbs24 in (Small)22 in18 inBoston Terrier, Chihuahua, Pug, Miniature Poodle
21 – 40 lbs30 in (Medium)30 in20 inDachshund, Pekingese, Shetland Sheepdog, French Bulldog
41 – 70 lbs36 in (Intermediate)34 in23 inBassett Hound, Whippet, Beagle, Bulldog, Brittany Spaniel
71 – 90 lbs42 in (Large)40 in28 inAustralian Shepherd, Boxer, Border Collie, Chow-Chow, Labrador Retriever
91 – 110 lbs48 in (XL)46 in30 inCollie, Greyhound, Rottweiler, German Shepherd, Siberian Husky
110 + lbs54 in (XXL)54 in36 inGreat Dane, Mastiff, St. Bernard, Irish Wolfhound

MidWest publishes eight sizes. Their folding iCrate line runs from 18 to 48 inches; the 54-inch XXL is a separate heavy-duty model. If your dog needs 54 inches, check you are looking at a range that goes that far before you compare prices.

Sourced here: the eight sizes, their lengths, the maximum dog height and length for each, the weight bands and the breed examples — all from MidWest's published chart. Rule of thumb, and labelled as such: the two-to-four-inch margin, the interior-versus-exterior allowance, and every judgement about which crate suits your house.

The long version, with the crates we'd actually buy — our puppy crate size guide.

A worked example: a forty-five-pound Labrador cross

  • Weight first: 45 pounds sits in MidWest’s 36-inch band. That is a starting estimate.
  • Now measure: 31 inches from nose to base of tail and 22 inches from floor to top of head. MidWest’s 36-inch row allows a dog up to 34 inches long and 23 inches tall, so both fit the published limits.
  • At the same weight, a dog 35 inches long and 22 inches tall moves up to the 42-inch size. Measurements decide when the weight estimate disagrees.
  • Before ordering, open the listing and read the INTERIOR dimensions. The advertised length is the outside of the crate, and the usable space inside is smaller.
  • Still growing? Buy for the adult size and fit the divider panel so the space matches the dog you have today, moving it back as they grow. MidWest's own reason is housetraining: spare room inside a crate is what a puppy uses as a toilet.

Or skip the arithmetic and compare the crates we would get, then come back and check the size against the chart below.

How to measure your dog

  • Length: nose to the base of the tail

    Measure from the tip of the nose to the base of the tail — the base, not the tip, because a crate does not need to hold a wagging tail. MidWest says to add a few inches to that figure for comfortable movement.

  • Height: top of the head to the ground, standing

    Measure from the top of the head to the ground while your dog is standing upright, and add a few inches for clearance. Standing, not sitting — this is the measurement people get wrong, and it is why a dog ducks in a crate that looked right on the weight chart.

  • Then check it against the chart

    MidWest publishes a maximum dog length and a maximum dog height for every crate size. Take the smallest size that clears both of your measurements. That margin is already built into their two columns, so you do not add your few inches twice.

  • If your dog will not hold still

    MidWest's own advice: keep treats on hand. A measurement taken off a moving dog is worse than no measurement, because you will trust it.

MidWest says to add “a few inches” and does not put a number on it. Two to four inches is a common rule of thumb rather than a manufacturer figure, so treat it as one — and where a rule of thumb and MidWest's published max-dog columns disagree, follow the columns.

Check the interior dimensions of the exact crate

  • A crate's advertised size is its exterior. The space your dog actually lies in is smaller, and how much smaller depends on the model — the pan lip, the door frame and the corner clips all take a bite.
  • Before you order, find the listed INTERIOR dimensions of the specific crate and compare those to your dog's measurements, not the name of the size.
  • If a listing does not state interior dimensions, that is worth noticing. Ask, or buy the one that does.
  • Measure the space in your house too. A 48-inch crate is four feet of floor, and the door has to open.

Ready to compare actual crates? The crate shelf.

Buy for the adult dog, then use the divider

  • MidWest's own recommendation for a puppy: buy the crate for the size they are expected to reach, then use the divider panel to make it the right size while they grow. One crate for the dog's lifetime.
  • As your dog grows, move the panel back gradually to open up more space. MidWest's stated reason is the housetraining one: excess room inside the crate is what leads to accidents in it.
  • Check the fit as they grow rather than on a schedule. The dog decides the timing.
  • The panel fits snug across the WIDTH of the crate, not along its length — MidWest calls this out specifically.
  • Wire crates fold flat and take a divider; plastic airline carriers usually do not. If you are buying one crate for a growing dog, that difference matters more than the price.
  • If your puppy is toileting in the crate and is otherwise healthy, too much space is the first thing to rule out — but a dog who is distressed, not just roomy, is a different problem and a vet question.

Divider settings for a growing puppy

Measure the puppy from the nose to the base of the tail, find the row, and set the panel so the space in front of it is about that long. Re-measure every couple of weeks while he is growing fast.

Divider position by the puppy's length today
Puppy today, nose to base of tailUsable space in front of the divider
10 inabout 12 to 14 in
14 inabout 16 to 18 in
18 inabout 20 to 22 in
22 inabout 24 to 26 in
26 inabout 28 to 30 in
30 inabout 32 to 34 in

The divider rule is MidWest's: set the space for the puppy you have today and move the panel back gradually as he grows, because spare room is what leads to accidents. The two-to-four-inch margin is our rule-of-thumb reading of their “a few inches”, the same one used for the full-grown measurement. When the setting reaches the full crate length, take the panel out. Planning the rest of the day around the crate is what the puppy schedule planner is for.

Crate training itself is a separate job — here is how we'd do the first week.

Crate size questions, answered from the chart

What size crate for a 30 lb dog?
MidWest's chart puts a 30-pound dog in its 21 – 40 lbs band: the 30-inch Medium crate, which MidWest rates for a dog up to 30 inches long and 20 inches tall. Weight is only the starting estimate, so measure before you buy: nose to the base of the tail, and floor to the top of the head while standing. If either number is over those limits, go up to the 36-inch Intermediate.
What size crate for a 50 lb dog?
MidWest's chart puts a 50-pound dog in its 41 – 70 lbs band: the 36-inch Intermediate crate, which MidWest rates for a dog up to 34 inches long and 23 inches tall. Weight is only the starting estimate, so measure before you buy: nose to the base of the tail, and floor to the top of the head while standing. If either number is over those limits, go up to the 42-inch Large.
What size crate for a 60 lb dog?
MidWest's chart puts a 60-pound dog in its 41 – 70 lbs band: the 36-inch Intermediate crate, which MidWest rates for a dog up to 34 inches long and 23 inches tall. Weight is only the starting estimate, so measure before you buy: nose to the base of the tail, and floor to the top of the head while standing. If either number is over those limits, go up to the 42-inch Large.
What size crate for an 80 lb dog?
MidWest's chart puts a 80-pound dog in its 71 – 90 lbs band: the 42-inch Large crate, which MidWest rates for a dog up to 40 inches long and 28 inches tall. Weight is only the starting estimate, so measure before you buy: nose to the base of the tail, and floor to the top of the head while standing. If either number is over those limits, go up to the 48-inch XL.
What size crate should I get for a puppy?
Buy for the adult dog, not the puppy. MidWest's advice is to choose the crate for the size your puppy is expected to reach and use the divider panel to make it the right size while they grow, moving it back gradually. Estimate the adult weight from the breed or your vet, pick the crate for that, then set the divider for the puppy you have today.
Where do I set the divider for my puppy?
Measure the puppy from the nose to the base of the tail and set the panel so the usable space is that length plus a few inches; we read a few as two to four, a rule of thumb rather than a MidWest figure. Move it back as he grows. Too much room is what MidWest says leads to accidents in the crate.
Should I go by weight or by measurement?
Measurement. MidWest publishes a maximum dog length and height for every size, and those two columns decide it. Weight is how you narrow the field, but a long low dog and a tall light dog at the same weight can need different crates.

Walking gear has the same trap — makers size differently. Read a harness size off the maker's own chart.

Sources

All three opened and read on 2026-09-07.