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How do I dispose of treated timber, decking and fence palings?

The direct answer

Never as green waste. Treated, painted and laminated timber is on the keep-out list for a green waste bin, even though it came out of the garden — book decking and fence palings as general waste or light building waste instead. In Victoria, EPA Victoria pre-classifies treated timber as priority waste (code K310-H), and under the Environment Protection Regulations "only untreated timber waste can be applied to land in the form of sawdust or mulch".

This is the cleanest example on this site of the rule that the right bin matters more than the cheapest bin — because with timber, the cheap-looking bin is not even cheaper.

Why fence and deck timber is not green waste

Our waste categories reference — the rulebook our own booking engine runs on — draws the line explicitly (read 2 September 2026):

  • Green waste accepts garden organics — and untreated timber only where allowed. Its keep-out list names treated or painted timber directly.
  • Light building waste accepts timber and wood offcuts, cabinetry and internal doors — with a note that treated timber can carry supplier-specific limits or surcharges.
  • The same page lists "fence and deck timber booked as green waste" as one of the four most common category mistakes: treated, painted and laminated timber is general waste, not organics.

Almost all decking and fencing timber sold in Australia is treated pine, painted or stained hardwood, or composite board. If it held up a deck or kept out weather for years, treat it as treated.

What EPA Victoria says about treated timber

The regulator's position is unusually specific, and it explains the green-bin ban. On EPA Victoria's Manage and dispose of treated timber page (updated 17 March 2026, read 2 September 2026):

  • Treated timber is pre-classified as priority waste, mirror code K310-H — covering timber, wood and material derived from wood, including sawdust and engineered wood, that is likely to have been treated, chemically altered or coated with a hazardous substance such as paint, varnish, preservative or fumigant.
  • "Under the Environment Protection Regulations, only untreated timber waste can be applied to land in the form of sawdust or mulch." That is the whole reason treated timber must stay out of green waste: green waste is processed toward mulch, and treated timber in the load contaminates it.
  • EPA directs waste holders not to dispose of treated timber at solid inert waste landfills (the landfills that take mainly construction and demolition waste), and to separate treated from untreated timber so far as reasonably practicable.
  • Timber treated with oil-borne preservatives such as creosote — railway sleepers, utility poles, marine piles — needs further risk assessment before disposal. If you are holding old sleepers, say so when you book rather than loading them quietly.

Other states draw their own lines, but the practical rule for a skip bin customer is the same everywhere on our network: treated timber never goes in a green waste bin, and it goes to landfill-appropriate streams, not mulch.

The cheap bin is not even cheaper

Booking green waste for a fence line is a contamination risk taken for no reward. Across the 32 postcodes where both categories priced in our 30 August 2026 probe, green waste and general waste priced within a median of $0 of each other — dearer in 14 postcodes, cheaper in 11, identical in 7. The full probe, its provenance audit and every category's median are published on the waste categories page. Book green waste because the bin is full of branches, never as a discount — and never for palings.

Will the council clean-up take it?

Mostly no. Across the 36 councils we audited on 30 August 2026, every clean-up service that publishes an exclusion list refuses building, renovation and demolition waste — and several name fencing and timber directly, each read from the council's own published page on 30 August 2026:

  • Penrith City Council (NSW) excludes fence palings, window and door frames, wood sheeting, and anything over 1.5m long. Source: penrithcity.nsw.gov.au.
  • Cumberland City Council (NSW) excludes fence material. Source: cumberland.nsw.gov.au.
  • Knox City Council (VIC) excludes gates, fencing, trellis and pallets, and caps building timber at 10 pieces to 1.5m even when it qualifies. Source: knox.vic.gov.au.
  • Glen Eira City Council (VIC) excludes timber as building, renovation or demolition material. Source: gleneira.vic.gov.au.

A deck or fence removal is renovation waste by every council's definition we have read. The council service is built for a broken chair, not a boundary line.

Sizing the job

A 4m³ bin takes a standard timber deck or a residential fence line, and cutting the timber to roughly 1-metre lengths before it goes in takes about half the bin space of loading it whole. If the posts are coming out with their concrete footings, that changes the waste category as well as the size — the full working, with measured prices at each size, is on what size skip bin do I need for deck or fence removal?

Old fences: the asbestos warning

Boundary fences on pre-1990 properties were commonly built from asbestos cement sheet — "fibro" fencing — and it is still standing all over Australia. If any part of the fence is flat grey sheet rather than timber, stop work and have it assessed and removed by a licensed asbestos removalist. Asbestos is never accepted in any skip bin, in any category, in any state.

Never accepted in any bin alongside the timber: leftover decking oil, stain, paint and timber preservative — liquids, paints and solvents are banned in every category.