Skip Bin Waste Types: What Can and Can't Go in a Skip Bin

The direct answer

A 4m³ of soil and a 4m³ of household waste are the same volume and a different category — and across the 25 postcodes in this probe where seven or more categories priced, that difference is worth a median of $187 on the same bin.

Choosing a skip bin is two decisions, not one:

1. What size? Decided by the volume of your job.
2. What category? Decided by what is physically going in the bin.

Almost every skip bin guide in Australia answers the first and skips the second. The second is where the money is, and it is where loads go wrong.

The nine waste categories

What each category costs for the same 4m³ bin

Quoted by our booking engine at 4m³ for delivery 7 September 2026 on a 7-day hire, across 33 Australian postcodes — NSW 8, VIC 8, QLD 8, WA 8, SA 1 — captured 30 August 2026.

Which measurement this is, and what we can and cannot certify about it. This is a 33-postcode probe captured on 2026-08-30 at 4m³ only, holding 264 category prices. 149 of those 264 values — all nine categories in 17 of the 33 postcodes — are independently confirmed as live supplier quotes (LIVE_NETWORK) against our audited category dataset, and they agree with it to the dollar, with no exceptions. The remaining 115 values, in 16 postcodes — seven of the eight Queensland postcodes, the one South Australian postcode, and all eight Western Australian postcodes — carry no recorded per-quote provenance. The probe file stored prices only, so we cannot certify individually whether those came from a live supplier or from a stored catalogue fallback, and this page does not present them as live. What the split does to every headline is set out in the method note at the foot of the page: the direction of every finding survives it, and the size of two of them moves materially.

This is not the only category measurement we publish, and the numbers are not interchangeable. A larger and fully provenance-audited capture of 184 postcodes (VIC 97, NSW 79, QLD 6, ACT 2), run the same day, is reported on What costs extra in a skip bin?. It measures the same nine categories the same way — 4m³, paired within the same postcode on the same day — over a different population, and it therefore reports different medians for the same comparisons. Every difference is set out side by side in the method note below. Neither page is a correction of the other and neither supersedes the other. They are two populations, and the difference between them is the sampling, not a price change. Quote the population with the number, or do not quote the number.

This probe is the only category measurement in our corpus that reaches Western Australia or South Australia at all — the 184-postcode dataset contains no WA, SA, TAS or NT postcode. That reach is the reason to keep this measurement, and the unrecorded provenance is the reason to read it with the caveat above.

Same postcode, same 4m³ bin, category changed: a median spread of $187 across the 25 postcodes where seven or more categories priced. The widest we measured was in Melbourne — postcodes 3070 (Northcote) and 3107 (Templestowe Lower), both confirmed live — where green waste quoted $293 and mixed waste with soil quoted $582: the same bin, on the same day, for +99%.

Two findings worth acting on

1. Anything with soil or rubble in it always costs more.

Measured against general waste in the same postcode, same 4m³, same day:

Mixed heavy waste and mixed waste with soil were never once cheaper than general waste anywhere in this probe. There is no postcode here where putting soil in the bin saves you money — and the 184-postcode dataset finds those same two rules holding without exception over its own, larger population.

2. Booking green waste to save money does not work.

In this probe, green waste came out dearer than general waste in 14 postcodes, cheaper in 11, and identical in 7 — a median difference of $0. Clean waste behaves the same way. The 184-postcode dataset puts green waste slightly on the dear side of level rather than exactly level; both say the same thing, which is that green waste is not a discount.

Book green waste because your bin is full of branches, not as a discount. Where the saving exists it is real and local; where it does not, you have taken on a contamination risk for nothing.

Some areas do not price by category at all

Worth knowing before you shop around: in 6 of the 33 postcodes, every category that returned a price returned the same price. The clearest case is a NSW Southern Highlands postcode, 2575, where all nine categories quoted $799 — a confirmed-live reading. Two Gold Coast postcodes and three Perth postcodes showed the same flat behaviour; those five sit in the group whose provenance we cannot certify, so we describe the pattern and do not publish their figures. A supplier in a flat-priced area prices by size only.

Where that is the case, choosing the "cheap" category gains you nothing and simply mislabels your load. Your postcode decides which situation you are in, which is why the live quote matters more than any national table.

What actually goes wrong

The failure mode is not choosing the wrong size. It is booking a cheap category and filling the bin with something dearer.

On our own records, 12 of 338 paid orders (3.6%) in the 65 days to 30 August 2026 carried an "upgraded to…" correction after booking — and 11 of those 12 were upgrades into a heavy or mixed-heavy category. The most common post-booking change on this business is the wrong category, not the wrong size.

The load is priced on what is in it. A general waste bin that arrives at the transfer station full of rubble is a mixed heavy load, and it is charged as one.

The four mistakes that cause it

Turf and garden bed soil booked as green waste. Grass and prunings are green waste. The soil attached to the roots is not. A lawn lift is a soil job.

Fence and deck timber booked as green waste. It came out of the garden, but treated, painted and laminated timber is general waste, not organics.

A bathroom or kitchen floor booked as general waste. Tiles and a few bits of rubble in a mixed strip-out are fine. A bin that is mostly screed and tile is not.

One lump of concrete in a general bin. A single piece of masonry can move the whole load into a dearer category. If you have rubble, give it its own bin — two correctly categorised loads are routinely cheaper than one mixed heavy load covering both.

What is never accepted, in any category

No exceptions, any size, any waste type:

• Asbestos, fibro and fibreglass
• Chemicals, liquids, oils, fuels
• Paints and solvents — wet paint is never accepted
• Gas bottles and aerosols, full or empty
• Batteries
• Clinical or medical waste
• Food and putrescible waste

If prohibited items are found after collection, contamination and disposal fees are charged and the load may be rejected.

Asbestos must be assessed, and removed by a licensed asbestos remover. State environment regulators are explicit that it must not go into general, recycling or green waste bins, and it is a regulated waste stream with tracking obligations that sit with whoever generates it. We publish no threshold, no area and no cost for it, in any state — the rules differ so sharply between jurisdictions that any national figure would be wrong somewhere.

Items your supplier may handle differently

What your supplier accepts varies by area on top of the national bans. Some items are not priced automatically at all — TVs and screens, carpet, underlay, vinyl and rubber rolls, and large glass, doors, windows and screens are routed to manual confirmation rather than quoted. The quote for your postcode shows what applies where you are.

For what to do with the items themselves — free NTCRS drop-offs for TVs and computers, council clean-up streams, retailer take-back and degassing rules for fridges — see how to dispose of e-waste and how to dispose of a fridge.

Mattresses, car tyres and truck tyres are priced separately at the point of booking and must be declared then. We hold that per-item data per city and we are not publishing a figure for it — and you should distrust any page that gives you a firm national one. The reasons are the same ones set out on What costs extra in a skip bin?: when the data was checked on 2026-08-30, every row came back carrying the booking engine's own verified: false flag, and one market declared a unit price of zero for all three items while the quote total still moved when an item was added. The figures an earlier draft of this page carried were also measured in a single postcode, and a second record in this corpus attributed the same figures to a different postcode — one measurement, filed twice, under two different places. Until the supplier confirms the unit prices, there is no number here to publish.

How to choose in one line

Size the bin by the volume of the job. Choose the category by the heaviest thing going in it. If soil or rubble is more than a small part of the load, it decides the category — and if it is a big part, give it its own bin.

Method

Prices. All nine categories were priced at 4m³ through our booking engine across 33 Australian postcodes — NSW 8, VIC 8, QLD 8, WA 8, SA 1 — captured 30 August 2026, for delivery 7 September 2026 on a 7-day hire, in AUD as quoted to a customer. Source dataset: sizing-answers/waste-categories-live-probe-20260830.json, 264 category prices. Medians are used throughout, not means. A category "difference" is that category's price minus the general waste price in the same postcode on the same day — never against a national average and never against another postcode. Percentages are the dollar difference over that postcode's own general waste price.

Provenance, stated rather than assumed. The probe file records prices and nothing else — it carries no per-quote source flag. 149 of the 264 values are independently confirmed LIVE_NETWORK by cross-matching against waste-type-prices.json (1,485 live supplier quotes captured the same day, every one flagged LIVE_NETWORK, catalogue fallbacks discarded rather than substituted): 149 overlapping values, 149 agreeing to the dollar, 0 disagreements. Those 17 postcodes are 2000, 2067, 2134, 2154, 2210, 2224, 2234, 2575, 3000, 3032, 3070, 3107, 3143, 3189, 3222, 3757 and 4000. The other 16 postcodes — 4061, 4109, 4122, 4170, 4215, 4226, 4551, 5251, 6000, 6009, 6014, 6025, 6050, 6056, 6069 and 6100 — are not in that audited dataset, so their 115 values cannot be certified either way and are not presented as live supplier prices. An earlier draft of this page stated that only live supplier network quotes were used and that catalogue estimates were excluded; that claim was not supported by the dataset and has been removed.

Sensitivity: the same comparisons on the 149 confirmed-live values only. Published rather than left to be found.

Every direction survives the cut, and the two absolute rules survive it exactly. The magnitudes on mixed rubble and light building waste do not — those two rows are carried by the postcodes we cannot certify, and should be read as approximate. The Melbourne +99% example and the $799 flat-price postcode are both inside the confirmed-live set.

How this page's figures relate to answer-pages/10, fact by fact. Both were captured on 2026-08-30, both at 4m³, both paired within postcode. They differ because the populations differ — 33 postcodes reaching WA and SA here, against 184 postcodes reaching neither, roughly six times the size and a different state mix there.

That last row is a coincidence of arithmetic, not agreement. This page's $539 is a median across 33 postcodes in five states; page 10's $539 is its Victorian median alone. The two numbers are equal and they do not mean the same thing. Both pages recompute correctly against their own capture, and no figure from one should be quoted as though it came from the other.

Order data. Booking corrections are counted from 338 paid orders placed between 1 July and 30 August 2026 (orders-65d.tsv, read 2026-08-31): 12 order lines record an upgrade after booking, 11 of them into a heavy or mixed-heavy category and one into general waste. An earlier draft of this page published 11 and 3.3%; the correct figures are 12 and 3.6%.

Per-item surcharges are deliberately not published here, for the reasons given above and on answer-pages/10. The figures an earlier draft carried were measured in one postcode only on 2026-08-30, while a second record in this corpus attributed the same figures to a different postcode; every row carried the engine's own verified: false flag; and one market declared a unit price of zero for all three items while the quote total still moved. Two records of one single-postcode, unverified measurement is not a national per-item price.

State-by-state exclusions have been removed. An earlier draft of this page listed items excluded by supplier in South Australia, Queensland and New South Wales. No dataset supports that. The underlying records are the booking engine's own manual-confirmation routing rules — "e-waste (TVs / screens)", "carpet / underlay / vinyl / rubber rolls", "large glass / doors / windows / screens" — which are not geographic at all, and this corpus separately records that itemised exclusion lists for the Adelaide and Gold Coast councils tested were unreachable and are therefore unknown. Internal routing logic is not a fact about a state, and it has been replaced with what is actually verifiable.

No weight or tonnage figure appears on this page. Every category above is defined by what may go in the bin — material only. No bin on this site is sold, limited or priced by weight, and this page states no weight allowance for any bin, in any state, at any size.

Category rules are the booking engine's own published waste taxonomy. Prices are a snapshot for the stated delivery date and make no claim about how prices have moved over time. Prices exclude any council permit, which may be required for a bin on public land. Hire length is not a dimension of this dataset.

Related: What costs extra in a skip bin? · How much is a skip bin in my postcode? · Why is my quote different from the price guide?