Short answer: one adult horse stabled 12 hours a day gets through roughly 20 to 30 kilograms of miscanthus bedding per week, or one 250 kg bale every 8 to 12 weeks. A horse stabled full-time uses closer to 50 to 60 kg a week and works through a bale in 4 to 5 weeks. That works out at somewhere between three and eight bales per horse per year, or one full pallet every 12 to 18 months for most owners. The exact number depends on stable size, whether you deep-litter or full-muck, how big the horse is, and how well you skip out. The rest of this guide walks through how to work out your own number so you know exactly what to order — and how to make each bale last longer than the last.
Why this question matters more than most bedding questions
Most bedding guides tell you which bedding to pick. Almost none tell you how much of it you actually need. That leaves owners either over-ordering and paying to store bales they will not use for a year, or under-ordering and running out in the middle of a wet October when the next delivery is a week away.
Miscanthus is particularly hard to estimate for because it behaves nothing like shavings or straw. It absorbs about three times more liquid per kilogram than shavings, so you top up less often, but the top layer stays dry and mattes down into a firm base that lasts weeks between full mucks. This means the “bag a week” rule of thumb that works for shavings will lead you to buy two to three times too much miscanthus.
The rest of this guide breaks the calculation down into three simple inputs: stable size, hours stabled, and mucking-out routine. Get those three right and the rest is arithmetic.
The three numbers that decide how much you need
1. Stable size
The industry standard is a 12ft × 12ft (3.6m × 3.6m) stable for a horse of 15 hands or under. A 12ft × 14ft or 14ft × 14ft box is standard for anything above 16 hands or a warmblood. Cobs and ponies under 14 hands are often kept in 10ft × 12ft. The bigger the stable, the more bedding needs to cover the floor — this is simple surface area.
| Stable size | Floor area | Bedding needed for a 4-inch bed | Bedding for a 6-inch deep-litter base |
|---|---|---|---|
| 10ft × 12ft | 11.1 m² | 18-22 kg first fill | 26-30 kg first fill |
| 12ft × 12ft | 13.4 m² | 22-26 kg first fill | 32-38 kg first fill |
| 12ft × 14ft | 15.6 m² | 26-30 kg first fill | 38-44 kg first fill |
| 14ft × 14ft | 18.2 m² | 30-36 kg first fill | 44-52 kg first fill |
First fill is the initial bed you lay down when you switch to miscanthus. It is deliberately deeper than a shavings bed because miscanthus mats and settles once the horse lies on it. After the first week you top up with roughly a third to a half of the first-fill weight per week.
2. Hours stabled
A horse stabled overnight for 12 hours produces about half as much urine and manure inside the stable as one stabled full-time. The maths for your weekly top-up is straightforward:
- Stabled 8-10 hours a day (out in the field the rest): 15-20 kg top-up per week
- Stabled 12 hours (typical overnight): 20-30 kg per week
- Stabled 16-18 hours (winter routine): 35-45 kg per week
- Stabled 22-24 hours (box rest, retired horse, foaling stable): 50-65 kg per week
These figures assume you skip out at least twice a day. If you only skip once a day, add 20%. If you can only get to the stable once every 24 hours, add 40% and expect to do a full muck every seven to ten days instead of every three to four weeks.
3. Mucking-out routine
Miscanthus is at its most economical on a deep-litter system: you skip out droppings and wet patches daily, top up with fresh bedding two or three times a week, and only do a full muck-out once every four to six weeks. Full mucking every day is wasteful — the mattress that miscanthus forms is what makes the bed comfortable and warm, and turning it over daily throws that away.
| Routine | Weekly top-up per horse | Full muck cycle |
|---|---|---|
| Deep litter, skip daily | 20-25 kg | Every 4-6 weeks |
| Semi-deep, skip 2× daily | 25-35 kg | Every 2-3 weeks |
| Full muck every day | 40-55 kg | N/A |
If you are on full-muck-daily, switching to deep-litter with miscanthus will cut your bedding bill by roughly 40% within the first month. That is not a marketing claim — it is arithmetic from the numbers above.
Working out your annual bill in three lines
Take the three numbers above and multiply:
Annual kg per horse = weekly top-up × 52 + first fill × 4 (assuming a full muck-out and reset every three months)
Worked example for a 16hh horse in a 12×14 stable, stabled 12 hours, deep litter:
- First fill (deep base): 40 kg
- Weekly top-up: 25 kg × 52 = 1,300 kg
- Four resets per year: 40 kg × 4 = 160 kg
- Total: ~1,500 kg per year, or six 250 kg bales
Worked example for a native pony in a 10×12 stable, out 8 hours a day, semi-deep:
- First fill: 20 kg
- Weekly top-up: 15 kg × 52 = 780 kg
- Two resets per year: 20 kg × 2 = 40 kg
- Total: ~840 kg per year, or three to four bales
Worked example for a box-rested horse, 24 hours in, full muck-daily:
- First fill: 32 kg
- Weekly top-up: 55 kg × 52 = 2,860 kg
- Twelve resets a year: 32 kg × 12 = 384 kg
- Total: ~3,275 kg per year, or thirteen bales
Most stables sit somewhere between the first two examples, which is why the answer to “how much do I need to order?” for a typical owner with one or two horses is one Nanhoron pallet every 12 to 18 months. A yard with four or five horses gets through one pallet every four to six months.
How to make each bale last longer than the last
The single biggest determinant of how far a bale of miscanthus goes is not the horse and not the stable — it is the person mucking out. Three habits, in order of impact:
- Skip out wet patches immediately, not later. Miscanthus absorbs quickly and holds the moisture without spreading, but if you leave a wet patch for 12 hours the surrounding dry bedding wicks the moisture out and you lose twice as much. Ten seconds with a skip fork at 7am and 6pm saves you a kilogram of top-up a day.
- Bank the sides. Miscanthus banks beautifully because it holds its shape. Push a 6-inch bank up all four walls and your horse’s legs, hocks and rug stay clean, urine runs to the middle rather than the corners, and you get an extra week between full mucks.
- Do not turn the whole bed over daily. The compressed layer at the bottom is doing useful work — it is warm, dry and dust-free, and horses lie on it happily. Skimming droppings and wet patches off the top preserves it. A daily full turnover is what shavings need, not what miscanthus needs.
Owners who do all three consistently report using 30-40% less bedding by weight in their second year of using miscanthus than in their first. The bed gets better as it beds in, not worse.
When you should order more than the calculation says
Three situations where the numbers above under-predict:
- New arrivals or box rest. A horse coming in for the first time or on box rest for injury will pass double or triple the urine of a settled horse for the first ten days. Add 20 kg to your first order.
- A stallion or in-foal mare. Both produce more urine and mess than a working horse. Round up by 25%.
- Winter conditions with wet field turnout. Horses coming in wet after a day out shed water into the bed for several hours. If your paddock does not drain, add 5-10 kg to each weekly top-up between November and February.
Delivery, storage and shelf life
A Nanhoron pallet carries roughly 20 to 21 bales (about 5 tonnes) and is delivered by curtain-sider or tail-lift to any farm entrance in North Wales, the Wirral, Merseyside, Cheshire and the Midlands. Elsewhere in the UK we deliver through nationwide pallet networks.
Miscanthus stores indefinitely if kept dry — it will not go musty, will not attract mice the way straw does, and will not lose absorbency over months of storage. The only enemy is rain. A tarpaulin over a pallet in a corner of a barn is enough. If you order for a full year, one pallet takes up roughly the same footprint as a large chest freezer and stacks two bales high without issue.
The bottom line
For most one-horse owners: one 250 kg bale every 8 to 12 weeks, and one pallet every 12 to 18 months. For a two-horse yard, one pallet every 8 to 10 months. For anything larger than that, work through the arithmetic above and add 10-15% for winter. If in doubt, buy one bale first, use it for a fortnight, and scale up from there — the shift from shavings or straw to miscanthus almost always ends up using less than you first expect.
Frequently asked questions
How does miscanthus compare to shavings for volume? Roughly one-third to one-half. A yard using six large bales of shavings a month usually settles at two to three bales of miscanthus. The reason is that miscanthus mattes down into a base and needs less turning over.
How often should I full-muck a miscanthus bed? Every four to six weeks on deep-litter, every two to three weeks on semi-deep. Any more often than that and you are throwing away bedding that still has weeks of use in it.
Does miscanthus lose absorbency if it sits in a bale for a year? No. Kept dry, miscanthus does not degrade — the absorbency comes from the hollow structure of the plant fibre, which is unchanged by storage time. Bales bought in September and used the following August behave identically to bales opened the day of delivery.
What do I do with used miscanthus bedding? It composts in six to nine months into a fine, weed-free soil improver. Local allotment holders and market gardeners often collect it for free. See the full composting guide (coming soon) for the walkthrough.
Is one pallet too much for one horse? Only if you have nowhere to store it. It works out significantly cheaper per bale than buying one at a time from a merchant, and it lasts most one-horse owners a full year to eighteen months. The saving is roughly £2-4 per bale.
Can I mix miscanthus with my existing shavings bed? Yes, and this is the cheapest way to transition. Lay a fresh 3-inch layer of miscanthus over the top of your existing base and skip out normally. The horse takes to it within a day or two and the shavings work themselves out over the following two full mucks.
Written by
Edward Harden, Nanhoron Farms. Miscanthus grower and supplier since 2018, based on the Llŷn Peninsula in North Wales. All figures in this guide are drawn from customer usage records across our own pallet delivery routes and are cross-checked against independent equine welfare research.
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