The honest answer to “what size skip do I need?” is usually one size bigger than you think for light waste, and one size smaller than you think for heavy waste.
That sounds contradictory. It isn’t — and understanding why will save you more money than any other decision you make about skip hire.
Start with weight, not volume
Skips have two limits: how much they hold, and how much they can lift. For most domestic jobs, the weight limit is what you’ll hit first, and almost nobody plans for it.
Here’s a claim you’ll see repeated on several otherwise-reputable sites: “one cubic yard is roughly one tonne”, implying an 8-yard skip carries 8 tonnes.
It doesn’t, and no standard skip lorry could lift it.
Realistic limits look like this:
| Skip size | Light waste | Heavy waste (rubble, soil, concrete) |
|---|---|---|
| 2 yard | ~500 kg | ~200 kg |
| 4 yard | ~1.5 tonnes | ~500 kg |
| 6 yard | ~3 tonnes | ~1.2 tonnes |
| 8 yard | ~4 tonnes | ~1.5 tonnes |
| 12 yard | ~6 tonnes | ~2 tonnes |
Look at the 12-yard row. Two tonnes of rubble is roughly a cubic metre and a bit — it fills about a fifth of a 12-yard skip. You’d be paying for 12 yards of space and legally able to use two of them.
Go over the limit and you’ll pay £30–£100 per extra tonne, or a flat overload charge — some operators charge £150 a time. The driver can also simply refuse to lift it, which means a wasted trip you’ll be billed for.
So: heavy waste goes in small skips, filled properly. Light bulky waste goes in big skips.
The sizes, and what they’re actually for
2 yard — the mini skip
Roughly 20–30 bin bags. About 1.5m × 1.0m × 0.8m.
The only skip where “small but heavy” is the design brief. Perfect for a bathroom rip-out, a small patio lift, or a couple of hundred kilos of soil. Fits on a single driveway space.
Best for: small bathroom strip-out · patio slabs · soil from a border · single-room clearance
Wrong for: anything bulky — you’ll run out of space long before weight
3 yard
Roughly 30 bin bags. The size most people don’t know exists.
Sits neatly between the mini and the midi. Genuinely useful for heavy waste in slightly more volume than a 2-yard handles — a bigger patio, a chimney breast removal.
4 yard — the midi skip
Roughly 40 bin bags. About 2.1m × 1.5m × 0.9m.
The domestic workhorse for heavy jobs. Still fits on most driveways.
Best for: kitchen refit · garden landscaping with soil and turf · small extension footings · rubble from internal walls
Wrong for: whole-house clearances
6 yard — the builders skip
Roughly 60 bin bags. About 3.0m × 1.7m × 1.2m.
The most-hired size in the UK, and usually the right answer for building work. Big enough to be useful, small enough that you can fill it with rubble without hitting the weight limit.
Best for: general building and renovation work · mixed rubble and timber · medium garden clearance · loft conversion waste
Wrong for: bulky light waste — you’ll pay for weight capacity you don’t use
8 yard — the maxi skip
Roughly 80 bin bags. About 3.6m × 1.8m × 1.4m.
The largest skip you can safely fill with heavy waste. Beyond this size, weight becomes the binding constraint on every load.
Best for: larger renovations · mixed construction waste · substantial house clearance with some heavy material
Watch: at 3.6m long it needs real space — measure your driveway before booking
10, 12, 14 and 16 yard — the bulky-waste skips
Roughly 100–160 bin bags. These have high sides and are built for volume, not mass.
This is where people most often choose wrong. A 12-yard looks like tremendous value per cubic yard — and it is, if you’re filling it with the right thing.
Best for: house and office clearances · shopfitting strip-outs · packaging, timber, furniture, plasterboard offcuts · light commercial waste
Genuinely wrong for: soil, rubble, hardcore, concrete, tiles, bricks. Most suppliers will refuse to deliver one for heavy waste, and they’re doing you a favour.
20 and 40 yard — roll-on roll-off (RoRo)
Roughly 200–400 bin bags. Delivered by hook-lift lorry, so they need substantial space and clear vehicle access.
Site containers rather than domestic skips. The 40-yard is for high-volume, very light waste — packaging, insulation, timber, plastic. If you can lift a handful of it easily, a 40-yard makes sense.
More detail in our guide to RoRo skips.
Choose by job, not by guesswork
| The job | Size | Why |
|---|---|---|
| Bathroom rip-out | 2–4 yard | Small volume, very heavy — tiles, suite, screed |
| Kitchen refit | 4–6 yard | Units are bulky, but there’s usually tiling and plaster too |
| Single-room redecoration | 2–4 yard | Mostly plaster, paper and skirting |
| Garden landscaping (soil, turf) | 4–6 yard | Soil is dense — resist the urge to go bigger |
| Patio or driveway lift | 4–6 yard | Slabs and hardcore are among the heaviest waste there is |
| Loft conversion | 6–8 yard | Mixed timber, insulation and plasterboard |
| Small extension | 8 yard | Footings spoil, blockwork offcuts, packaging |
| Full house clearance | 12–14 yard | Bulky and light — furniture, boxes, soft goods |
| Office strip-out | 14–16 yard | Partitions, ceiling tiles, furniture, cabling |
| Shop fit-out | 16–20 yard | High volume, low density |
| Ongoing site waste | 20–40 yard RoRo | Exchange as needed |
Six practical things that catch people out
1. Measure the space before you book. An 8-yard skip is 3.6 metres long. A lot of driveways aren’t. Also check headroom — the lorry needs overhead clearance to lift, and low branches, cables and carports are a common cause of failed deliveries.
2. The lorry needs more room than the skip. As a rule of thumb, allow roughly 10 feet of width and 13 feet of headroom for access, plus room to lower the skip. A skip that fits your drive is no use if the lorry can’t reach it.
3. Level loading is a legal requirement, not a suggestion. Nothing can protrude above the rim. An overloaded skip can’t legally be transported, and the driver will refuse it. If you think you’ll be near the top, book the next size up — an exchange costs more than the upgrade would have.
4. Some things can’t go in at all, whatever the size. Asbestos, plasterboard (needs segregation), fridges and freezers, mattresses, upholstered furniture, tyres, paint, chemicals, batteries and electricals all need separate handling. Most carry a modest per-item surcharge if you declare them — and a much larger contamination charge if you don’t. See what can and can’t go in a skip.
5. Upholstered furniture is the big one. Since January 2023, sofas, armchairs, dining chairs, office chairs and similar have been classed as containing persistent organic pollutants (POPs). They can’t be mixed with general waste or landfilled — they must be kept separate and incinerated. Declare them and it’s around £30 + VAT for a sofa. Hide them in a house-clearance load and you’ll pay for contaminating the whole skip.
6. Mixing waste types costs money. Rubble alone can qualify for the lower rate of landfill tax — £8.65 a tonne rather than £130.75. Mix it with general waste and the whole load is charged at the standard rate. If you’re generating both, ask about two smaller skips rather than one big mixed one; it’s often cheaper.
Still not sure?
Two questions settle it almost every time:
“Could I comfortably lift a shovelful of this?”
If yes, it’s light waste — go bigger.
If no, it’s heavy waste — go smaller and fill it properly.
“How many bin bags would this be?”
Divide by 10 for a rough yardage. 40 bags ≈ 4 yards. It’s crude, but it’s closer than most people’s instinct.
Frequently asked questions
Is it cheaper to hire one big skip or two small ones?
For light waste, one big one — almost always. For heavy waste, two smaller ones, because you’d hit the weight limit in the big one anyway. And if you can segregate rubble from general waste, two skips can be substantially cheaper on disposal.
What if I underestimate?
Most suppliers offer a swap — they collect the full skip and drop an empty one. It costs roughly the price of a second skip, so it’s worth getting the size right first time.
Do bigger skips cost more to place on the road?
Sometimes. Salford, for example, charges £20.76 for a domestic skip permit but £72.66 for skips over 12 cubic yards. Brighton & Hove charges £48.40 for a standard skip over 7 days and £89.10 for a large one. Worth checking — see our permit cost comparison.
Can I stand in the skip to compact the waste?
Please don’t. Break down bulky items before they go in instead — flat-pack furniture, dismantled shelving and folded cardboard take a fraction of the space.
Tell us the job, not the size
Describe what you’re clearing and we’ll tell you what actually fits — including whether two smaller skips would work out cheaper than one big one. Get a quote →