GP bucket, 4-in-1, rock bucket, skeleton, weld-on teeth — the case for each type, and how to decide without buying the wrong one twice.
Most people buying their first skid steer bucket ask the wrong question. They ask "what size?" when they should ask "what type?" Width matters, but type determines whether the bucket actually does the job — or just moves the job along painfully.
This guide is about bucket type. If you already know you need a GP but want to nail down the width and capacity, read the bucket sizing guide instead.
If you're staring at a bucket catalog and wondering where to begin, this table cuts through it:
| Your Primary Work | Right Bucket Type | Skip This |
|---|---|---|
| Dirt, topsoil, gravel, general digging | GP bucket (general purpose) | 4-in-1, rock bucket |
| Ripping and loading fractured rock, blasted material, limestone | Rock bucket with weld-on teeth | GP bucket — edge will shred |
| Grading, backfilling, dozing loose material | 4-in-1 combination bucket | GP for precision grading is mediocre |
| Separating rock from soil, clearing roots and debris | Skeleton bucket (rock/root screen) | GP — picks up dirt along with rock |
| Mixed construction and landscaping — one machine, many tasks | GP bucket + bolt-on tooth bar option | Specialized types first |
| Demolition debris, mixed rubble, irregular material | Grapple bucket (not a digging bucket at all) | GP — can't grip and hold |
| Manure and soft agricultural material | High-sided or silage bucket | Standard GP — walls too low, material spills |
Roughly 70-80% of skid steer bucket purchases end up as general-purpose buckets. There's a reason. A well-built GP in the right width handles topsoil, gravel, sand, clay, soft aggregate, light mulch, and general dirt work without complaint. The cutting edge holds up to routine digging. The profile works for both digging into material and carrying loads.
In Canada, GP buckets run approximately $800–$2,200 CAD new depending on steel grade, brand, and width. A 72-inch Bobcat GP is toward the top end; a TMG or similar import comes in lower. The cheap ones flex and crack faster at the side plates — worth spending more on a quality weld if you're putting hours on the machine.
The complaint you hear about GP buckets: they dig poorly in hard clay or compacted gravel. That's real, but it's a tooth problem, not a bucket-type problem. Bolt a tooth bar onto a GP bucket and you've got 80% of what a rock bucket does at much lower cost — and you can pull the tooth bar for finish grading. That flexibility is why the GP remains the default.
A rock bucket has a deeper profile, heavier steel on the floor and sides, and typically comes with bolt-on or weld-on teeth as standard. The floor is reinforced because rock loading — dropping fractured stone into the bucket repeatedly — hammers standard GP floors flat over time.
Who needs a dedicated rock bucket? Quarry and pit work, blasted limestone handling, loading rip-rap, clearing blasted shale. If your site has fractured rock that needs moving, you'll chew through GP cutting edges faster than a rock bucket that's built for it. The rock bucket's heavier steel also takes more punishment from the repeated impact loads.
Price range in Canada: $1,200–$2,800 CAD new, 72-inch. The weight premium is meaningful — a rock bucket often weighs 200–400 lb more than a comparable GP, which eats into rated operating capacity. Worth calculating before you buy.
The mistake: buying a rock bucket because your ground is "hard." Hard clay, compacted gravel, and frozen prairie soil don't require a rock bucket — they require a tooth bar and patience. Rock buckets are specifically for fractured, irregular, abrasive stone material. Using one for general dirt work just means you're carrying around extra steel for no reason.
A 4-in-1 opens at the top (like a clamshell) using a separate hydraulic circuit. This gives you:
The appeal is obvious. The trade-offs are real. A 4-in-1 weighs more than a GP of the same width — typically 200–400 lb more — and costs significantly more ($3,000–$6,000 CAD for a 72-inch unit vs $800–$2,200 for a GP). The clamshell mechanism adds mechanical complexity. The hinges and cylinder are wear points that a plain GP doesn't have.
For operators who do a lot of grading and fine finish work, the dozing function on a 4-in-1 is genuinely useful. For operators who mainly dig and load, the extra weight and cost aren't justified. The clamshell grip is weaker than a dedicated root grapple for debris handling — if you're buying a 4-in-1 primarily to grab and carry debris, a root grapple handles that job better.
A skeleton bucket — sometimes called a rock screen, root bucket, or debris bucket depending on bar spacing — has a slotted or bar floor instead of solid steel. Soil and fines fall through; rock, roots, and large debris stay in the bucket.
This is a specialty tool. It shines in one specific scenario: cleaning up blasted rock that's mixed with soil, or clearing root balls and stones from ground you're prepping for seeding. The material you want to remove stays in the bucket; the material you want to keep (topsoil, fine soil) falls back to the ground.
Not useful for general digging and loading — fines fall through, so you can't move soil efficiently. Not useful for gravel loading — aggregate passes through the bars. The skeleton bucket is productive in narrow applications and idle otherwise. Rent one for a specific job rather than buying, unless you run it constantly.
| Bucket Type | CAD Price Range (72") | Best For | Weight vs GP | Versatility |
|---|---|---|---|---|
| GP Bucket | $800–$2,200 | Dirt, gravel, topsoil, general digging | Baseline | High |
| GP + Tooth Bar | $950–$2,600 combined | Hard soil, compacted ground, clay | +50–100 lb | High |
| Rock Bucket | $1,200–$2,800 | Fractured rock, blasted stone | +200–400 lb | Low-Medium |
| 4-in-1 Combination | $3,000–$6,000 | Grading, dozing, mixed tasks | +200–400 lb | Medium |
| Skeleton / Screen | $1,400–$2,800 | Rock/root separation from soil | +100–200 lb | Low (specialty) |
| Silage / High-Side | $1,000–$2,400 | Manure, silage, light fluffy material | +100–200 lb | Low (specialty) |
Whatever bucket type you land on, you'll also choose a cutting edge style. This matters more than most buyers realize:
Bolt-on straight edge — standard on most GP and rock buckets. Replaceable when worn. Appropriate for soil, gravel, and soft aggregate. Cheapest to run long-term.
Weld-on teeth — harder steel, concentrated digging force at each tooth tip. Better penetration into hard or compacted material. Teeth dull and wear, so they're also replaceable — but the whole tooth assembly, not just a flat edge section. Common on rock buckets.
Tiger teeth or segment teeth — bolt-on individual tooth segments. Replacement is easier than weld-on. Good middle ground for operators who do both digging and some finish work.
Side cutters — bolt-on angled plates on the bucket corners. Worth adding if you're doing trench work or digging along walls — they prevent the side plates from dragging and wearing on adjacent material. Not necessary for open-site grading work.
Buy a 66" or 72" GP bucket in the width that matches your machine. Add a bolt-on tooth bar if your ground is compacted or you're doing any real digging. Skip the 4-in-1 on the first purchase — if you hate grading with a plain bucket after a season of using it, buy the 4-in-1 then, informed by experience. Resist the skeleton bucket unless you have a specific screening job in front of you.
The GP first approach is boring advice, and it's right for most people. If you have an unusual application — you're doing actual quarry work, or you're running a feedlot with serious manure volumes — then the specialist bucket makes sense from day one.
Looking for specific bucket models available in Canada? Browse verified product pages on real buckets sold through Canadian dealers and distributors.