Getting It Right: Guide to Western Saddle Pads for Short-Backed Horses

Western saddle pads for short-backed horses must be shorter than standard pads. A shorter pad prevents pressure on the horse’s loins. Choose a pad with a shape that follows the horse’s back. Round or barrel-shaped pads can offer an ideal fit.

Ideally, western saddle pads for horses with short backs should be shorter than the standard pads widely available. If the pad is too long, it can rub, bunch up, or shift, which can create problems. 

The Groundwork: Why Pad Selection Matters for Compact Horses

Selecting the right western saddle pad for a short-backed horse can positively impact performance and soundness. Being attentive to this conformational feature will be worthwhile.

Fitting tack always requires a careful approach, and the pad is the interface between the saddle and your horse. An improperly sized pad with a poorly fitting saddle can, especially with a short-backed horse, concentrate pressure over the sensitive lumbar area, potentially creating pain.

So let’s dig into the biomechanics of a short-backed horse and break down the function of various pad materials. This information will build the understanding you need to make a technically sound choice.

Anatomy 101 for the Short-Backed Horse

Understanding anatomy is the first step.

Short-backed horses have less real estate for distributing weight, unlike a long-backed horse. This difference makes them more susceptible to pressure sores if the tack isn’t fitted correctly.

Biomechanics, which studies how a living organism moves in relation to its parts, affects how the pad and saddle interact with the horse, particularly the lumbar vertebrae and the muscles of the back.

What “Short-Backed” Actually Means

The term “short-backed” refers to a specific conformation where the length of the back, from the withers to the croup, is less than one-third of the horse’s total body length.

From a biomechanical standpoint, a short back is a powerhouse, which is an advantage in disciplines that require rapid acceleration or the ability to collect.

But, unfortunately, short backs can make saddle fitting a headache.

The main weight-bearing surface for a western saddle is the thoracic region, where the ribs provide the necessary support. The bars of the saddle tree must rest on the longissimus dorsi (back muscles) within this zone.

The problem for the short-backed horse is that there’s less space in this “saddle support area.” Which is why it’s essential to have a professional saddle fitter assess your horse and the saddle’s fit.

Image source: https://stephaniebloomsaddlefitter.co.uk/blog-and-resources/back-profile-and-tree-selection-part-2-horses-with-low-or-no-withers

The Loin: Why It’s a No-Go Zone

A standard western saddle, with its long tree and skirts, can extend past the thoracic area and into the lumbar region.

The lumbar region, also called the loin or coupling, is the area of the back from the last rib to the croup. This region contains the lumbar vertebrae, and there are no ribs attached to them, so there’s no lateral support. 

The lack of rib attachment makes the loin flexible, but also vulnerable to downward pressure. Allowing the back of your saddle and pad to sit in this area directs pressure to the lumbar vertebrae and surrounding soft tissue. There are multiple potential consequences:

• Muscle Spasms and Soreness. The muscles lock up, and the horse can’t engage its hind end properly.
• Nerve Impingement. The saddle/saddle pad pressure compresses the spinal nerves, causing pain or even neurological issues in the hind legs.
• Vertebral Damage. Chronic pressure can contribute to conditions like “kissing spines” or arthritis.
• Gait Restriction. A horse with a sore loin won’t lift its back or step under, creating short, stilted strides in response to pain.

So, when choosing western saddle pads for short-backed horses, check that the pad, as well as the saddle, doesn’t extend onto the lumbar region.

The Domino Effect of a Bad Fit: Pressure Points and Spinal Health

A poor saddle pad can create pressure points that lead to injuries, ranging from skin irritation to bone damage. These pressure areas may lead to soreness, inflammation, and lameness.

But it’s not just about length. The shape is just as important. A pad that’s not shaped adequately to the horse’s back can create a “bridging” situation, concentrating pressure at the withers and loin, while gapping in the middle.

Conversely, a pad that’s too curved will rock back and forth. Both create an undesirable distribution of pressure, which could lead to:

• Chronic back pain and the behavioral problems that come with it.
• Muscle atrophy.
• Compensatory lameness—a sore back affects movement, putting undue stress on hocks, stifles, and front legs.

Getting the Tape Measure Out: How to Measure for Pad Length

When measuring length for a saddle pad, the saddle support area is the primary concern. This is the part of the back that is supported by the rib cage, where the saddle and pad need to sit.

1. Determine the support area. First, locate the back of the horse’s shoulder blade (scapula). Then, find the last rib by placing your fingers at the girth area and running them back until you feel the last rib, and follow it up to the spine. That point on the topline is the end of the thoracic region. 
2. Measure the support area. Use a flexible tape and measure along the back from just behind the scapula to the point where the last rib meets the spine. This measurement is the length of the horse’s weight-bearing surface. 
3. Measure your saddle. Measure the total length of the saddle skirt, from front to back.
4. Determine max pad length. Your pad’s spine length should be, at most, 1-2 inches longer than your saddle skirt.

This process ensures that the pad will fit the horse first, and the saddle second.

Getting into Materials and Construction

The stuff a pad is made of is an essential factor. The materials influence how well the pad distributes pressure, absorbs shock, and manages heat and sweat.

Natural Fibers:
100% wool felt is a popular choice. Its complex fiber structure actively wicks sweat away from the skin, holding significant moisture before feeling damp. It also regulates temperature effectively.

The natural crimp in wool fibers acts like a spring, allowing it to mold to the horse’s back, and compress and rebound without packing down over time—important for long-term usefulness.

ThinLine has some outstanding wool pad options.

Our Woven Wool Round Skirt Saddle Pad is crafted with Merino Wool that is needled onto a fabric backing, ensuring the wool quality is more consistent than that of wool on a natural hide. It’s also machine washable.

The pad features two panels of ThinLine protection sewn onto the pad, along with pockets to accommodate shims.

Additionally, these pads are a blessing for short-backed horses because their spine length is 25.5 inches, far shorter than standard pads.

If a wool pad doesn’t appeal to you, ThinLine offers two cotton pads that may.

The Cotton Endurance Drop Rigging Saddle Pad (26.5-inch spine) and the Western Cotton Liner Round Skirt Pad (25-inch spine) give riders with short-backed horses attractive alternatives.

Both pads are constructed of heavy-duty washable cotton with wool fill. Slim, shock-absorbing ThinLine panels are attached to either side of the spine, and shims can be placed under the panels if needed. 

Synthetic Fibers (Neoprene, Polyester Felt, Foams):
Synthetics are another option that can be less expensive than wool and easier to clean.

Neoprene and closed-cell foams offer shock absorption but don’t breathe well because they trap heat and moisture. Polyester felt resembles wool but packs down quickly and traps sweat, rather than wicking it away.

What About Wool Blends and Synthetic Alternatives?

100% wool pads can be expensive. Wool blends, which mix wool and synthetics, are more budget-friendly. However, the less wool the pad contains, the faster it will pack down compared to a pad made entirely of 100% wool.

Synthetic felt is typically made from 100% polyester. These pads are inexpensive, but their wicking ability and compression resistance are minimal.

The Contour Western Ranch Round Skirt Pad is a wool blend pad with a spine length of 26 inches. The underside of the pad is made of synthetic fleece, which is machine washable, and the other side is made of wool felt.

ThinLine panels on either side of the spine absorb shock, and because of the ThinLine material’s open-cell technology, the panels provide excellent ventilation.

The Thickness Dilemma: Protection vs. Close Contact

Pad thickness is a balancing act.

Many people equate bulk with protection. This belief isn’t true as frequently; too much bulk prevents you from feeling your horse.

The proper thickness depends on saddle fit, your discipline, and the horse’s conformation. A well-fitting saddle needs less padding; never use a thick pad to fix a bad saddle fit. 

Pad Selection Considerations

Below is a summary of features to consider when shopping for a Western saddle pad for your short-backed horse.

Shorter Spine Length

Standard pads are often 30″, 32″, or longer—almost always too long for a short-backed horse. Look for a spine length under 30 inches, usually in the 27-29 inch range. This ensures the entire pad is positioned over the supportive thoracic vertebrae, preventing loin pressure and allowing full hindquarter engagement.

Contoured vs. Straight Pads

The only commonality with short-backed horses is that they all have short backs. Otherwise, a short-backed horse can have a flat back, or it can have a sloping back. It all depends on the horse’s conformation.

With this in mind, whether you should choose a contoured pad or a straight pad will be determined more or less by the shape of your horse’s back.

A horse with a flat back would do better in a straight pad, meaning the top of the pad is straight. A horse with a sloping back would do well in a contoured pad, as its contoured design would better mimic the slope of the back.

Again, the saddle pad design should reflect the shape of the horse’s back.

Round and Barrel Shapes

Beyond length, consider the pad’s shape.

Traditional square pads have extra material at the corners, which could be excessive for a short-backed horse.

Round skirt pads remove this material, providing clearance for the hip and flank. Barrel shapes are a more specialized version, often shorter and featuring a cutaway at the rear. 

Wither Relief

This is especially important for horses with high withers. The pad should not put pressure on the withers.

A good contoured topline creates a natural pocket of space. Some pads include wither cutouts—a physical hole at the front—which guarantees no pressure.

A Word on Shims and Corrective Pads

Shims are inserts that go into pockets on a pad to alter its shape. They can be a valuable tool for fine-tuning, addressing minor asymmetry issues, or body changes that occur as a horse matures and progresses in training. Shims are not for fixing a fundamentally flawed saddle fit.

Using them to make a saddle fit that’s two sizes too wide is asking for trouble. If you require significant shimming, you may need a different saddle; therefore, consider consulting a professional saddle fitter.

Final Technical Recommendations

1. Saddle Fit First. No pad can fix a bad saddle. Ensure the saddle and pad sit on the weight-bearing surface and do not extend past the last rib. 
2. Measure, Don’t Guess. Measure your horse’s saddle support area and the length of your saddle and pad.
3. Determine Appropriate Pad Design. Is your horse’s back flat or curved? Knowing this will help you choose whether you need a straight or contoured pad.
4. Short and Round. Look for pads with a spine length equivalent to the saddle support measurement. Additionally, round-shaped pads tend to be more streamlined than square ones.
5. Use Shims for Fine-Tuning Only. Bad saddle fit requires the services of a professional saddle fitter.
6. Check Your Fit Regularly. Horses change shape. Check your sweat patterns after every ride.

These recommendations should help you select a pad that fits, protects, and enhances the well-being of your short-backed horse.

ThinLine offers a variety of Western pads with spine lengths as short as 25 inches, available in both contour and straight designs, and featuring round skirts or barrel shapes. All pads include ThinLine’s shock-absorbing material and pockets for shims.

Check out our complete line of Western Saddle Pads to find one that’s perfect for your short-backed horse.

Common Questions from the Field

Below you can see common questions we get asked.