How to Measure a Horse for a Blanket: Step-by-Step Sizing Guide

To measure a horse for a blanket, run a soft tape from the center of the chest, along the side of the body, to the point where the tail begins, and read the number in inches. That single measurement matches the size on most manufacturer charts, which typically move in two-inch steps. The measurement is only the first step, though. Shoulder room, neck height and strap placement decide whether a blanket stays put or rubs. This guide walks through the method, a worked example, and the fit checks worth doing before you buy.

What You Need Before You Start

You do not need much. A flexible tape (the cloth type used for sewing works well, or a measuring tape marked in inches), a helper to hold the horse, and a flat, level place for the horse to stand. A concrete aisle or firm, dry ground is better than soft footing, because the horse stays square.

• Soft tape. A rigid metal builder’s tape will not follow the curve of the barrel and gives a falsely short reading.
• A helper. One person holds the horse; the other places the tape. Trying to do both alone often leads to a crooked line.
• Notepad or phone. Write each reading down so you can compare it with a size chart.
• The brand’s size chart. Have it open before you shop, since the same number can sit under different size labels from brand to brand.

Pick a calm moment. A horse that is fidgeting or has just been exercised may hold its body differently, so a quiet, relaxed horse is the best subject. Stay beside the shoulder, never directly in front of or behind the horse, and keep a hand on the lead rope.

Step-by-Step: Taking the Measurement

Follow the same order every time so your numbers can be repeated.

1. Stand the horse square on level ground, head in a natural, relaxed position. Raising or lowering the head changes how the skin and muscle sit over the shoulder.
2. Place the end of the tape at the center of the chest, in the middle point between the two front legs.
3. Draw the tape back along the side of the body, passing over the point of the shoulder and across the widest part of the barrel. Keep it at the same height along the body rather than letting it sag toward the belly.
4. Stop at the point of the buttock, where the tail starts. This is the standard end point on most charts.
5. Check that the tape is snug but not tight. You should be able to slip a finger under it.
6. Read the number in inches and repeat the measurement from the other side. Both sides should agree within about an inch.

If the second reading differs, measure a third time and use the one that appears twice. A horse that is standing crooked is the usual cause of mismatched numbers.

Reading the Size Chart

Most blanket sizes are labeled by the length in inches that you just measured. A horse that measures 76 inches is generally looking at a size 76 or the closest size the brand offers. Some makers use small, medium and large labels or pony sizes instead, and then publish the inch range behind each label, so read the footnotes.

These ranges are only rough guides based on general sizing practice. The tape is the authority, and the manufacturer’s chart overrides any generic table, including this one.

Worked Example

Suppose a 15.2-hand gelding (62 inches at the withers) reads 77 inches on the tape. On a chart with even sizes, the nearest options are 76 and 78. Here are the assumptions: this horse is built broad through the chest, carries average condition, and will wear a turnout blanket over a short winter coat.

Because of the broad chest, the 78 is the safer first choice. A blanket that is too short pulls the chest strap tight and can rub the front of the shoulder. If the same horse were narrow and long-backed, the 76 might sit better, since extra length would let the blanket slide back. If you plan to layer under it, add room rather than choosing the smaller size. The example shows why a number alone is not the answer: the tape gives a range, and body shape picks within it.

Fit Checks Beyond Length

Once the blanket arrives, put it on and look at the following areas before you commit to it.

• Shoulder. The blanket should not drag the shoulder back or leave a bunched ridge. Gussets or a cut designed for shoulder freedom help on active turnout horses.
• Withers. Look for space above the withers. Tight fabric here is a common source of rubbed hair.
• Neck and chest closure. You should fit a flat hand beneath the front closure. A high or low neck cut can change this, so check the style.
• Back length. The rear edge should cover the base of the tail without pulling on the hips.
• Belly straps. Cross surcingles should sit about a hand’s width apart, and a leg strap or tail cord should allow some movement without twisting.

Walk and trot the horse in hand, then watch how the blanket moves. A blanket that slips to one side may be too wide, while one that pulls across the front when the head lowers to graze is likely too short.

Choosing Fill Weight and Style

Once the size is settled, match the blanket’s warmth to the weather. Fill weight is commonly described in grams: roughly zero for a sheet, around 100 to 200 for a medium weight, and 300 or more for a heavy winter blanket. These numbers come from general industry usage, so read the product description rather than assuming. Turnout blankets focus on waterproof outer fabric and durability, while stable blankets focus on softness and breathability. Neck covers, hoods and bellybands are optional extras, and each one affects how the blanket should fit through the neck and chest.

Climate, coat thickness, body condition and whether a horse is clipped all matter. A horse with a full winter coat usually needs less blanketing than a clipped one. Ask your veterinarian or an experienced trainer if you are unsure about an older, thin or health-compromised horse.

What Can Go Wrong, and When to Stop

Poor sizing causes most blanket problems. Watch for these signs and fix them promptly.

• Rubbed hair or sore spots at the shoulder, withers or hips suggest the blanket is too small or the wrong cut.
• Constant slipping usually points to a blanket that is too large, or straps that are set incorrectly.
• Sweating under the blanket can mean the fill is too heavy for the day.
• Trapped or damaged straps are a safety hazard for any horse in turnout.

Take the blanket off and check the horse’s body every day. If you see broken skin, swelling, a horse that is hard to catch because it dislikes the blanket, or signs of discomfort, remove the blanket and ask a veterinarian or experienced professional for advice. Return policies vary, so keep tags on until you are sure of the fit.

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Frequently Asked Questions

Where exactly does the tape start and stop when measuring a horse for a blanket?

Start at the center of the chest, between the front legs, and run the tape along the side of the body, over the widest part of the shoulder and barrel, to the point of the buttock where the tail begins. Keep the tape level and snug but not tight. Most brands size blankets in inches along this line, so the number you read is the number to compare against the size chart.

What if a horse falls between two blanket sizes?

Check the brand’s own chart first, because cut and increments differ. Many owners go up when the horse is broad through the shoulder or barrel, and down when the horse is narrow with a short back. Look at fit instead of the number alone: the blanket should sit behind the withers without pulling at the chest, and the surcingles should still close comfortably. If in doubt, ask the retailer about return terms before buying.

Can a horse’s height in hands pick the blanket size?

Height gives only a rough starting point. A 15-hand horse stands about 60 inches at the withers, but blanket size follows body length, not height, so a long-backed 15-hand horse and a compact 16-hand horse can wear the same size. Use height to guess a range, then confirm with a tape measurement and the manufacturer’s size chart before ordering.

Does a turnout blanket fit the same as a stable blanket?

The measuring method is the same, but cuts can differ. Turnout blankets are often cut with extra room at the shoulder for free movement and may use leg straps or a tail cord, while stable blankets can be cut closer to the body. Some brands also size their lines differently, so always read the chart for the exact style you are buying rather than carrying a size across products.

How can you tell a blanket fits once it is on the horse?

Look for a smooth line with no rubbing at the shoulder, withers or hips, and enough room to slide a flat hand under the chest closure. The front should sit without choking the throat, the back edge should cover the tail base, and belly straps should hang level. Watch the horse walk, then check again after an hour for hair rubbed off or pressure marks.