Heavyweight stable rugs are the warmest indoor rugs, with 300g or more of fill. They are made for hard winter nights and for horses that are fully clipped or naturally struggle to hold their own body heat in the stable. Just Horse Riders stocks 19 heavyweight stable rugs from brands including Shires, Gallop Equestrian, StormX, Weatherbeeta, Bucas, Rambo and Premier Equine, from £13.78.
In a hurry?
- Fully clipped horse, cold barn: a 300g rug such as the Shires Tempest Original 300 Stable Rug (from £13.78).
- Want neck cover too: a combo or neck set like the Gallop Equestrian Trojan Dual 300 Stable Rug & Neck Set (from £49.01).
- Hardest winters or a very cold-sensitive horse: a 400g rug such as the Premier Equine Domus 400g Combo Stable Rug (from £174.60).
What is a heavyweight stable rug?
A heavyweight stable rug is a non-waterproof indoor rug with a high fill weight — usually 300g to 400g of polyfill. The fill traps warm air around your horse, so a higher number means more warmth. Stable rugs are designed for use in the stable or barn only; they are not made to be worn out in the rain like a turnout rug.
When should a horse wear a heavyweight rug?
Heavyweight rugs suit cold, hard winter nights, and horses that are fully clipped, older, underweight or simply feel the cold. On milder nights the same rug can leave a horse too warm, so many owners keep a lighter option as well. A horse that is sweating, breathing quickly or warm and damp under the rug is over-rugged — always adjust to the weather and the individual horse rather than the calendar.
Which rug weight does my horse need?
Rug weight is a guide, not a rule. Coat, clip, age, body condition and how warm your stable stays all change the answer. Use the table below as a starting point and check your horse under the rug.
| Fill weight | Best for | Typical conditions |
|---|---|---|
| Lightweight (0–150g) | Unclipped or lightly clipped horses; layering | Cool autumn and spring nights |
| Medium (200–250g) | Partly clipped horses; changeable weather | Cold nights that are not yet freezing |
| Heavyweight (300g+) | Fully clipped, older or cold-sensitive horses | Hard frost and the coldest winter nights |
Explore the full stable rugs collection, or step down a weight to medium-weight stable rugs and lightweight stable rugs for milder nights.
How do I measure my horse for a stable rug?
Measure in a straight line from the centre of the horse's chest, along the side of the body, to the point of the buttock (the edge of the tail). In the UK this length is given in feet and inches, so a measurement of about 198cm is a 6ft 6in rug. If your horse falls between two sizes, most owners size up. A rug that is too small can rub at the shoulders and chest, so if you are unsure it is worth asking an experienced fitter to check.
Which heavyweight stable rugs do we recommend?
- Shires Tempest Original 300 Stable Rug — a well-priced 300g everyday warm rug (from £13.78).
- Shires Tempest Original 300 Stable Combo — the same 300g warmth with an integrated neck cover (from £20.23).
- Gallop Equestrian Trojan Dual 300 Stable Rug & Neck Set — 300g rug with a detachable neck set for changeable weather (from £49.01).
- Shires Tempest Original 300 Stable Rug & Neck — 300g rug and matching neck for full coverage (from £81.00).
- Bucas Quilt 300g Dermo-Care — a 300g rug with a skin-friendly Dermo-Care lining (from £101.00).
- Premier Equine Domus 400g Combo Stable Rug — a 400g combo for the coldest nights and cold-sensitive horses (from £174.60).
Stock and prices shown here can change — check the product page for the latest availability and sizes.
How do I look after a heavyweight stable rug?
Brush off loose hair and mud between uses and let a damp rug dry fully before storing it. Wash it at the end of the season following the maker's care label, and reproof only if the label allows. Check the straps, buckles and stitching regularly so a worn fastening does not fail overnight, and store the rug clean and dry over summer to help it last.
Frequently asked questions
How warm is a 300g stable rug?
A 300g stable rug is a heavyweight rug that gives a lot of warmth for cold winter nights. It suits fully clipped horses and horses that feel the cold. On milder nights it can be too warm, so check that your horse is not sweating underneath and switch to a lighter rug when the weather turns.
What is the difference between a heavyweight and a medium-weight stable rug?
The difference is the amount of fill. A heavyweight rug has 300g or more and is the warmest, for hard winter nights and clipped horses. A medium-weight rug has roughly 200–250g and suits colder nights that are not yet freezing. Many owners keep both and swap them as the weather changes.
Can a horse overheat in a heavyweight rug?
Yes. A heavyweight rug on a mild night, or on a horse that is not clipped, can leave a horse too warm. Signs of over-rugging include sweating, a warm and damp coat under the rug, and a raised breathing rate. Slide a hand under the rug at the shoulder to check, and use a lighter rug or no rug when it is milder.
Does my clipped horse need a heavyweight rug?
A fully clipped horse has lost much of its natural insulation, so a heavyweight rug helps replace that warmth on cold nights. The right weight still depends on the horse, the clip and how cold your stable stays. If you are unsure, or your horse is old, underweight or unwell, ask your vet or an experienced yard manager for advice.
How much do heavyweight stable rugs cost?
At Just Horse Riders, heavyweight stable rugs start from £13.78, with premium 300g and 400g rugs from brands such as Bucas and Premier Equine costing more. Price usually reflects the fabric, the fill, the fit features and the brand. Check the collection for current in-stock prices and sizes.
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Rug-buying advice from the Just Horse Riders team — last reviewed 12 July 2026.