A whole lamb in NZ usually means the entire animal, dressed and butchered to your spec, with the cuts vacuum-packed and frozen ready for the freezer. Hanging weight tends to land between 16 and 22 kilograms depending on the breed, the season, and how the lamb was finished. That becomes around 13 to 18 kilograms of packaged meat once the bones, trim, and ageing-loss are accounted for — enough to feed a household of four for several months if you eat lamb most weeks.
If you’ve never bought meat this way before, the numbers can sound abstract. This guide is what we wish someone had handed us when we first started talking to people about ordering a whole lamb: what it costs, what you’ll actually receive, when to order, and what separates a real farm from a marketing brochure.
What “whole lamb” actually means
In NZ butchery language, a few terms get used loosely. Worth pinning them down before you ask for a quote.
A lamb is a young sheep, typically slaughtered before its first birthday. Most NZ lambs are processed somewhere between 6 and 11 months old. After that, the meat is sold as hogget (1–2 years) or mutton (older).
A whole lamb is the entire dressed carcass — both legs, both shoulders, the rack, the loin, the breast, and the neck — turned into the cuts you’ve asked for.
A half lamb is exactly what it sounds like: one side, lengthways. Hanging weight 8–11 kg.
You’ll also hear three weights:
- Live weight — the lamb on the hoof, usually 35–50 kg.
- Hanging weight — the dressed carcass after slaughter, before butchery. Usually 16–22 kg for a finished lamb. This is what you’ll most often pay on.
- Packaged weight — the meat that ends up in your freezer, after butchery, boning, and trim. Sits at around 75–85% of hanging weight for lamb (lamb yields slightly higher than beef because the bones are smaller relative to the meat).
When you compare prices between farms, make sure you’re comparing the same weight. A “$320 whole lamb” priced on hanging weight is a different animal to a “$320 whole lamb” priced on packaged weight.
Pricing — what to expect in NZ
There’s no single number, because farms price differently. A regeneratively raised, pasture-finished lamb from a real NZ farm in 2026 tends to land in this range:
- Hanging-weight pricing: $14–$20 per kg. An 18 kg lamb at $17/kg is around $306 hanging, plus a butchery fee (often $80–$140 flat, or $4–$6/kg of hanging weight).
- Packaged-weight pricing: $20–$28 per kg. A 15 kg packaged lamb at $24/kg is around $360 all-in.
- Flat-package pricing: $380–$520 per whole lamb, butchery and freight included.
- Per-cut from a farm shop: works out 20–40% more than buying a whole lamb, because you’re paying for the cherry-picking and the inventory risk.
Compared to the supermarket, bulk pricing on grass-finished NZ lamb from a real farm is usually similar to (or cheaper than) the prime cuts on the shelf, and you’re getting the slow-cookers, mince and bones included for the same per-kg rate. The economics tilt heavily in your favour if you actually use the whole animal.
If a farm is quoting much under $14/kg hanging for “regenerative” or “grass-fed” lamb, ask questions. Either the lamb is finished younger (smaller carcass, lower per-animal cost), the farm is subsidising the price to move stock, or the marketing is doing more work than the farming.
What you actually get — cut breakdown
A whole lamb yields roughly the following packaged weights, give or take depending on how you spec it:
- Hind legs (2): 4–5 kg total, bone-in or boneless.
- Shoulders (2): 3–4 kg total. Slow-cooking gold.
- Loin / backstrap: 0.6–1 kg, the most tender cut. Often sold as loin chops or as a whole boneless backstrap.
- Rack of lamb (2): 1–1.5 kg total. The “frenched” rib chops.
- Breast / flap: 0.8–1.2 kg. Excellent slow-cooked or made into mince.
- Neck: 0.5–0.8 kg. Slow braises, curries, stocks.
- Mince and sausages: 1.5–3 kg, depending on how much you keep as cuts versus processed.
- Bones: 1–2 kg if you ask for them (broth, dog food, or both).
Most farms will let you spec the cuts before butchery — leg roasts versus boneless butterflied legs, shoulder roasts versus diced lamb, rib racks versus loin chops, plus how much mince and sausage you want. A good butcher will walk you through it.
If you want a working default and the farm offers one, a “balanced family pack” usually works out to: 2 leg roasts (1 boneless), 2 shoulder roasts, 8 loin chops, 8 rib chops, around 1.5 kg of diced lamb, 1.5 kg of mince, 6–8 sausages, and bones if you want them.
Freezer space
A whole lamb takes up around 60–80 litres of freezer space — roughly the size of a medium chest freezer’s lower half, or four to five drawers of an upright freezer. If you’re already keeping a whole lamb plus a side of beef, plan for a 200-litre dedicated freezer.
Vacuum-packed and frozen properly, lamb keeps well for 9–12 months without quality loss. Mince and sausages are best used within 4–6 months.
When to order — timing and seasonality
NZ lamb is shaped by the seasons. Most lambs are born between July and September (winter into spring), grow on pasture through spring and summer, and are processed somewhere from late summer through to late winter the following year.
That gives a few practical windows:
Spring lamb (October–December) — younger, smaller carcass (often 14–17 kg hanging), milder flavour. Limited availability and usually a small premium per kg. Good if you want very tender meat and don’t mind a smaller pack.
Autumn / mature lamb (March–June) — most common. Lambs are 8–11 months, peak carcass weight, full flavour. Most farms run their main butchery cycle in this window.
Hogget (July–September) — over a year old, deeper flavour, slightly firmer texture. Some farms sell these as “hogget” rather than “lamb” and price accordingly. Excellent value if you cook with confidence.
The other thing to factor is lead time. Most small farms work to a butchery schedule and need 3–12 weeks notice. The lamb has to be drafted from the mob, walked through a processing booking, butchered to your spec, vacuum-packed, frozen, and either delivered or made ready for collection. If you want a lamb in the freezer for a specific date — Christmas, a wedding, a winter household stock-up — start the conversation a couple of months out.
If a farm can ship you a whole lamb on 48 hours notice, the lamb has been sitting frozen for a while. That’s not necessarily bad, but it tells you something about the operation.
How to choose a farm
The label on the supermarket shelf doesn’t tell you much. When you’re buying directly from a farm, you can ask the questions that actually matter. Six worth asking:
1. Where was the lamb born and finished? A real answer names a farm, a paddock, and a season. A vague answer means the lamb has likely been bought in or finished on someone else’s pasture.
2. What were the lambs grazing on, and what was the pasture managed for? Diverse pasture (multi-species, including herbs and legumes) produces a different lamb to a ryegrass-clover monoculture. Both can be grass-finished. Only one feeds a recovering soil.
3. Was anything sprayed, drenched, or fed? Pasture-raised, no synthetic hormones, no growth promotants, and a clear policy on drench use. Most NZ farms drench at least once for parasites — that’s normal — but ask what and why.
4. Where is the lamb butchered? A small, regional butcher who does custom work for the farm is a good sign. Mass kill-floors process at speed and don’t tend to allow custom specs.
5. Will I get the whole lamb, or just the prime cuts? Some “whole lamb” packages quietly hold back the breast, neck, or bones. A real whole lamb is the whole animal.
6. What happens to the offal? A farm that uses the heart, liver, and kidneys (or makes them available) is one that takes the animal seriously. You don’t have to want them. It’s a question about how the farm thinks about waste.
How Mangaroa Farms does whole lambs
We raise Coopworth and Coopworth-cross lambs on diverse pasture in Te Awa Kairangi (the Hutt Valley), Wellington. The lambs are born in our paddocks in spring, grow on grass year-round, and are finished slowly — we’d rather a slightly older, slightly larger lamb than push them through fast on grain.
The pasture is managed regeneratively: long rest periods between grazings, multi-species sward, no synthetic fertiliser. The same soil our lambs graze grows our market garden produce, and the same forest edges they pass through are the ones our team has been replanting in native bush.
Whole lambs go through a small Wellington-region butcher. You can spec the cuts, and you’ll receive the entire lamb — legs, shoulders, racks, loin, mince, sausages, and bones if you want them. We deliver across the North Island via NZ Post, with orders accepted by Wednesday 12pm for the following week’s despatch, or you can collect direct from the Farm Shop / Kete Kai at 98 Whitemans Valley Road.
If you’d like to talk about a whole or half lamb, get in touch. We’ll walk you through availability, pricing, and the cuts that make sense for the way you cook.
— Mangaroa Farms
98 Whitemans Valley Road, Upper Hutt welcome@mangaroa.org