Garden waste is one of the commonest reasons to hire a skip - but it's also one of the easiest to get wrong on sizing. Green waste looks huge stacked against a fence but compacts dramatically once it's in the skip. Here's how to size a garden clearance skip properly and make sure everything you're tipping in is legal.
Sizing a garden clearance
Small jobs - a mini (2yd) is plenty
Examples of jobs that comfortably fit in a mini:
- Trimming hedges along a 30ft boundary
- Clearing weeds and ivy from a border
- Pruning a single apple or plum tree
- Removing a single raised bed
A mini holds about 30 shovel-loads of material - enough for most garden tidies.
Mid-sized jobs - go midi (4yd)
- Clearing an overgrown 20ft × 20ft back garden that hasn't been touched for two or three years
- Felling a single medium-sized tree (chipped)
- Removing a small patio (concrete slabs)
- Clearing a shed and its contents plus garden overgrowth
Full overhauls - maxi (8yd)
- Complete garden strip, ready for relandscaping
- Mixed soil, turf and bulky green waste together
- Removing large areas of patio or decking
- Multiple mature trees or large root balls
For any job involving significant soil or turf, lean toward the maxi - soil is heavy and you'll hit the mini's weight limit long before you fill it visually.
What garden waste is allowed in a skip?
Most organic garden waste can go in a standard skip:
- Grass cuttings, leaves, weeds - fine
- Hedge trimmings, branches, twigs - fine (break long branches down to fit)
- Soil, turf, topsoil - fine, but heavy
- Old compost - fine
- Stones, gravel, brick rubble from garden structures - fine
- Pots, planters, broken concrete slabs - fine
- Untreated wood (fence panels, old decking, dead tree trunks) - fine
What garden items CAN'T go in
- Pesticides, herbicides, weedkillers - hazardous waste, separate disposal
- Treated fence posts with tar or creosote - hazardous, separate disposal
- Empty chemical drums - hazardous
- Gas bottles from patio heaters or BBQs - return to supplier (never into a skip)
- Japanese knotweed - controlled invasive plant, specialist disposal required by law
- Garden ponds and their contents - fish shouldn't be disposed of in waste; liner material is fine but check for chemicals first
- Old garden sheds with asbestos roofs - asbestos is absolutely prohibited, see our banned list
Japanese knotweed - don't put it in a skip
If you spot the characteristic hollow green-red stem and heart-shaped leaves, stop. Japanese knotweed is a controlled plant under the Wildlife and Countryside Act 1981. Disposing of it in a normal skip can spread it to new sites and is an environmental offence. It needs burial at least 5 metres deep at a licensed landfill, or specialist incineration.
A legitimate local skip depot will refuse to collect any load containing knotweed. If you have it on site, contact a specialist knotweed contractor first.
Loading a garden skip efficiently
- Heavy stuff at the bottom - rubble from old paving, removed concrete, root balls.
- Cut it up - long branches waste space. Break anything over 3ft.
- Bag the leaves and grass cuttings - loose green waste blows around during transport. Bagged waste packs better too.
- Soil last - pours into remaining gaps.
A properly loaded 4-yard midi can fit the equivalent of 60 wheelie-bin-loads of compacted garden waste. Loaded badly, you'll fit 25.
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